How to extract gold from electronics at home. DO NOT TRY THIS AT HOME.

How to extract gold from electronics at home It involves stripping electronics boards of components, cleaning them, then submerging the boards in an etching There are roughly 0. Then put the gold into a large glass beaker. The first uses mixed hydrochloric nitric acids to dissolve the gold for recovery and further hazardous The amount of electronic waste (e-waste) generated globally is rapidly increasing with the increasing use of electronic devices. Steel, copper, zinc, aluminum, brass and other metals make up a significant amount of these items and should be recovered to maximize your profit. Just 1 gram of graphene is enough to extract almost twice that amount of gold, attracting over 95% of the gold in a given sample even at concentrations as low as one part per billion. This substance is pure gold. Although you have recovered the gold from the electronics scrap, it may not be pure gold. Scientists have been pushing the boundaries of material science to extract gold from discarded electronics, turning this waste into catalysts for essential chemical processes. Last year’s Global E-waste Monitor 2020 reported that The Royal Mint has recently announced their intention to use old waste electronics as a new source of gold. Credit: Kou Yang (Image credit: Gold Recovery from E-Waste by Food-Waste Amyloid Aerogels) Finally, to extract the precious metals from the sponge, the protein sponge is heated to a temperature where the gold ions Motherboards and other boards have gold, but there are also plastics and platinum group metals. Place your circuit boards in a glass vessel. #keşfet”. A New Zealand startup has found a way Gold Recovery Correctly: I will detail a SAFE process of turning old electronic parts into little round lumps of pure gold. , Environment Protection Gold is actually an integral part of many electronic devices as it is a pliable metal which is conductive, making it a useful element in various computer parts and electronics. Solvents are more challenging to use but can be more effective in removing the gold from the component. Hard disk drives (HDDs) from old computers and laptops are treasure troves for those looking to extract gold and other precious metals. Then bleach to dissolve and vitamin C to 99. Each gram of aerogel snatched 190 mg of gold. All pretty much state the same thing. the “fingers”. com/c/ArchimedesChannel/In this video, we're going to show you how to recycle electronic circuit board scrap into gold. Melt the gold. 5 minutes will be yellowish orange. Nitric acid was used for the extraction of gold. Tincture Iodine Gold Recovery:h Removing the gold-bearing rock from the ground is just the first step. From hardrock gold to placer gold, we load it Gold is used in many industries including consumer electronics (mobile phones, laptops etc. Oh yeah, I remember these schmucks at the recycling center we used to be able to reuse electronics but they'd smash up a $50 CPU for the $0. 04 grams per converter. Place radio components in a glass jar, fill it with nitric acid and heated. If you’re considering a full scale e-collar restoration, you know it’s worth the effort. ; How to extract gold from electronics. The gold should be of pretty high purity once you’ve melted it, particularly if you fluxed well and were careful about scraping off any slag. The first method uses one of the most powerful acids in the world, aqua regia. com/c/ArchimedesChannel/Simply throwing awa It is best to separate with a friend as one person can pan for gold, and another can use a metal detector or magnet to extract the gold from the sand. They dissolved computer motherboards, a Clean your gold with a cloth or rag to remove dirt or debris. Its chemical properties make it useful for the manufacture of computers parts, electronics, jewelry and dental work. After absorbing the gold, it is melted to form a nugget. Gold extraction from a landfill is a costly and polluting process. 48 Using white vinegar, sea salt, and hydrogen peroxide to recover gold foils from scrap computer circuit card fingers. , 2015) and environmentally damaging, resulting in increased costs due to the detoxification An oily liquid containing the chemical compound is then added, which extracts gold selectively from the complex mixture of other metals. Discover how easy it can be to recycle How do you extract gold from electronics at home? How to extract gold from electronics Collect your scraps. Don’t hesitate to try it now that you know how to extract gold from Nov 16, 2024 · This depends on the amount of gold in the phone but a rough estimate is around USD$1 to USD$2 per phone. com $11. Fortunately, all you need for See more How to Extract Gold from Electronics. Extract the gold from the container by pouring off the acid using a filter, then rinsing and re-filtering the substance three times with distilled water. Can I extract gold without using chemicals? While vinegar is considered a mild acid, it is still a chemical. I bought a lot of cheap processors and RAM and can tell you it’s a time consuming hobby that takes a lot of heavy and dangerous chemicals. youtube. Your gold piece should be clean so that your test results are clear and you don’t have anything else discoloring the vinegar. If gold is present, strip off all the components of the PCBs. #gold #goldrecovery E-waste is mounting. 🔴 Subscribe for more Tutorials: https The small amounts of gold found in electronic goods are either extremely thin coatings to copper connectors to ensure a good corrosion resistant connection every time or else bound inside integrated circuits as tiny thread-like wires. There's no time-efficient way to separate the metals, and How do you get gold out of electronics? How to extract gold from electronics . In the quest for sustainable solutions, a group of It will take a few days, and once you start noticing the gold foils floating, you’d have to wait at least one more day to be sure that all the nickel has dissolved off the gold foils. How To Recover Gold. Observe the muddy separation that collects at the bottom of the acid container. Here are some of the most common processes used by hobbyists to extract small amounts of gold from electronic waste at home: Discover how to turn your old electronics into valuable gold with our detailed tutorial on HOW TO EXTRACT GOLD FROM ELECTRONICS. Abdul Khaliq, Metal Extraction process for electronic waste and existing industrial routes: A review and Australian Perspective, Resources 2014,3, 152-179. Scientists have developed a highly effective method to recover gold from electronic waste, an advance they say could yield $50 worth of gold for every dollar spent. 4. There are people who collect e-waste and use various methods to extract gold from them. This video demonstrates a technique to recover pure 24K gold from electronic scrap. Discover how easy it can be to recycle Nov 8, 2024 · Use a magnet to separate all gold-plated steel parts, as you need a different process to extract it. Strip out the boards. Because the process of recycling and extracting gold from electronic processors requires multiple kinds of acids and chemical reactions, it can be dangerous. The graphene-based process with its . Use electrolysis to recover gold from PC-Boards and chips. The aerogel burned and created ash, and the gold melted into a gold nugget. They dissolved these parts in an acid bath so as to ionize the They were able to extract 450 milligrams or around $38. The use of oxidant agents (electro- To be precise, two distinct chemical methods are used for extracting gold from old electronics. The process aligns with circular economy principles by recycling both electronic and food waste. They dissolved How do you recover gold from electronics at home? The recycling process for this noble metal is not difficult, but it is highly time-consuming and dangerous. See picture below:Gold Fingers - How to Recover Gold from Electronic Scrap(WARNING: The process described here involves highly corrosive and toxic chemicals and should only be done outside Pawn shops deal in scrap gold all the time, you can test for the relative purity of gold in several ways (acid test for one) and for such a small piece of gold they could cut it in half with tin A common phrase says ‘curiosity killed the cat’, but in the case of brothers Rohan and Nitin Gupta, it did quite the opposite. Separate the gold foil from the solution at this point. Step 13: Allow the gold powder to settle to This video shows how and what to scrap in old cell phones and prepare them for gold and other precious metals recovery. Incredible clip from acclaimed BBC 1 science series, Ba Removing the gold manually. You can use a wet or dry paper towel or a glasses Gold, precious forever but especially lately, is a tricky metal. Carefully In phones, most of the gold is in the SIM card, the main board and the smaller components on the back of the LCD screen. Take a second beaker and pour it half full of Aqua To recover gold in the laboratory experiment, the team salvaged the electronic motherboards from 20 old computer motherboards and extracted the metal parts. Thousands of people, primarily in developing countries, earn a living by burning e-waste to extract copper. com/c/ArchimedesChannel/ Mining gold from electronics and old appliances is commonly known as "e-waste Jem Stansfield shows how it is possible to extract pure Gold from some old electronic circuit boards. Frequently Asked Questions Is it safe to use vinegar for extracting gold from electronics? Using vinegar to extract gold from electronics is generally safe, as long as proper precautions are taken. A New Zealand startup has found a way to extract gold f The gold ions grow into flakes on the fibers. Gold recovery from electronics not only helps recycle precious metals but also reduces electronic waste, contributing to a more sustainable environment. 50 worth of Palladium, Gold, Copper, and Silver combined represent close to 97% of the value of all the non-ferrous focus metals in the PCBs and represent the greatest opportunity for precious metals recovery from electronics. 3. So I took apart multiple electronics, phone's, computers, etc. Jan 2, 2024 · To begin the gold extraction process, the first step is to prepare the electronics that contain the gold. In phones, most of the gold is in the SIM card, the main board and the smaller components on the back of the LCD screen. That’s because gold extraction I'm not trying Aqua Regia, at least not yet because I'm doing this at home.   There are many tutorials that claim to offer methods of gold You still have to go through those same processes. 4 million tonnes. Instead of letting them gather dust in your drawers or adding to the growing e-waste problem, you can extract the gold they contain and sell it to refiners or collectors. 1 At today’s gold price, per gram, that would be worth about $1. How to Recycle Gold from Electronics What should you do with the extracted gold? Once you have successfully extracted the gold from the electronic components, you have several options: Sell the gold to a reputable buyer or refiner. However, if you are, you will find that it is a great hobby, How to mine gold from ewaste without chimical/gold recoveryIc chips gold recovery/processing IC chipsGold recovery/how to recover gold from IC chips/Surface Like all critical raw materials, gold is a finite resource, yet 7% of the world's gold is currently sitting in disused electronics. Two years ago, gold prices peaked at around $2,000 per ounce. e. These processes may be challenging and cost-prohibitive for you. In either case there is no simple, non-toxic way to target and isolate the gold to extract it. How to Make Gold from Electronic Chip Scrap Asse 284 Likes, TikTok video from Cryptanaki (@cryptanaki): “Learn the step-by-step process to extract gold from SIM cards and maximize your electronics recycling efforts. To isolate pure gold, mining companies use a complex extraction process. 2: Three Methods of Recovering Gold From Scrap Electronics for the Intermediate Level Hobbyist Amazon. The whole The metal from six million mobile phones and almost 72,000 tonnes of waste electronics was extracted to make around 5,000 gold, silver and bronze Olympic medals #Electronics #goldElectronics are chock-full of gold, but getting it out is so difficult that most of it goes to waste. Make sure to research market prices beforehand to get a fair deal. 2. Dec 30, 2023 · Peripherals like graphics boards, internal modems, and ethernet port boards: These computer parts have significant amounts of gold in the pins and surface layers. 70 worth of fine gold at current market value. Nor should you even attempt doing so at home because it involves chemical processes. The key is knowing which processes and techniques work best for each material. Department of Information technology Electronic waste management in India. Aqua regia is a mixture of two potent I demonstrate a complete, end to end, micro gold extraction process from gold ore using hydrochloric and nitric acids, and using zinc to precipitate the gold Electronics are chock-full of gold, but getting it out is so difficult that most of it goes to waste. B However, it's crucial to note that gold extraction from electronics is not without challenges. However, it is hard to qualify it as a “ Depending on the amount of gold in solution you may or may not see a reaction immediately. However, if it is a small gold recovery, you will make a meager profit afterwards. The first step in this process is breaking down large chunks of rock into smaller pieces. "The best thing I extracted gold from was industrial video @MakeGold 👉 https://www. In the end, the 4. SEOUL, South Korea — In the glittering world of precious metals, gold reigns supreme. Processing routes for e-waste recycling. 9. In this case, a chemical solution and electricity are used to remove the gold By recovering gold from electronics, you can turn your old and unused electronic devices into a source of profit. , 2022), and, recently, Yu et al. 016 grams of gold in one smartphone. Innovative gold extraction from e-waste, scientists use cheese byproducts to extract valuable metal from And that’s as far as most of us will be able to get the gold separated at home. The amount of gold in a catalytic converter varies based on the model and age of the vehicle, but typically ranges between 0. Collect the flakes. The result will be nearly 100 percent gold. Yes, you heard it r @MakeGold 👉 https://www. In this video, we show you how to smelt gold ore to extract the gold from rocks. Joanna Willner, Extraction of metals from electric waste by bacterial leaching. According to the United Nations’ Part 2 video on how to take the gold from computer chips and refine it to a more pure metal and smelt it. Collect your scraps. Part 1 - https://youtu. We start by crushing the rocks using a jaw crusher and then use a furnace to Gold and precious metals are to be extracted from old phones and laptops by Britain's coin-maker. Is there real gold in Karat is a reference to purity. Read more about using cheese byproducts for extract gold from e-waste. E-waste contains valuable metals like gold, Is it Environment-Friendly to Extract Gold from Electronics? Considering gold is not in unlimited supply and because producing new gold is cost-, resources-, and effort Scientists have developed a novel way to recycle toxic waste — extracting gold from old electronics using a byproduct of a staple cuisine in many cultures. With advances in technology and scientific methods, extracting gold plating from jewelry computer scrap and old vintage ceramic and glass dishware has become a profitable hobby. Do not fear; you will still If you recall, when scrapping computers and other electronic equipment, we encounter a lot of peripheral cards which has Gold plated male slot contacts, i. It came to my understanding that I made Weigh your gold on a kitchen scale so you know how much acid you’ll need to add. But if you can open a small workshop, it’s possible to Gold ions from the mixture settled on the surface of the aerogel and were reduced, forming metallic gold. The alternative industrial process grinds the entire motherboard into a fine powder and burns off everything but the gold. Remove The Gold Foil. Descover how to Extract pure 98% or more Gold from all your gold plated eloctronic scrap and jewelry This Ebook is fully illustrated and will guide you into a step by step processe on how to extract gold easily from gold plated Recovering precious metals from electronic scrap and e waste is an interesting hobby and while it may not be profitable to refine at home, if you don't have Electronics; Tech Culture; recycling; e-waste; British Royal Mint launches initiative to extract gold from electronic waste The world's first e-waste processing facility that works at room temperature Innovative gold extraction from e-waste: Learn how a cheese byproduct is key to retrieving gold from old electronics. Milling or incineration isn't something most people bother with themselves. Go for a two or three-liter beaker to ensure you’ve got enough space. If you have a lot of electronic scrap at home or in your business, this Encouraged by these initial findings, the group proceeded to validate if the aerogels could selectively retrieve gold from genuine electronic waste rather than pure solutions. This easy-to-follow guide will take you through To extract gold from a device, follow these steps: Identify the parts of the device that contain gold, such as connector pins, circuit board fingers, and microchips. Nov 29, 2024 · Learn how to extract gold from electronic waste with a simple method. The real value would be slightly lower because their nuggets were about 9% How to extract gold from scrap electronics. After soaking the electronic components for a few days, you will observe that the solution of peroxide becomes thicker. Park and Fray indicated that using solvent extraction method (toluene as extraction solution and tetra-octyl ammonium bromide as phase transfer agent), gold with a purity of 97% can be extracted (6). Burning the aerogel freed the gold, turning it into a tiny hunk of metal. ) and, when the products are eventually discarded, little of the electronic waste is recycled. It is profitable to extract the gold from these 411 Likes, TikTok video from Ali Talibov (@talibovalishka): “Discover how to extract gold from electronics with this simple method! Watch the blue liquid in action and learn more about this process. There are two common methods for recovering gold from e-waste: burning gold at high temperatures, which is very energy and energy intensive, and releases toxic A group of researchers has devised a method to extract gold from electronic waste. Is extracting gold from electronics worth it. Retrieving gold from Apr 20, 2024 · In this comprehensive tutorial, I'll guide you through the fascinating process of extracting valuable gold and other precious metals from old electronic devi 4 days ago · 8. Then cover everything with sulfuric acid (battery acid will do), heat a little bit and start adding nitric acid in small increments as needed until all base metal will be dissolved. Gold, the precious metal that built and destroyed empires, was the focus of millions of investors for years. Hello viewers,In this video, we are going to show you all the chemicals you need for gold recovery and platinum and palladium. However, cyanide-based extraction is highly toxic (Akcil et al. These processes are DANGEROUS and put the user at the risk of inhaling If all else fails, you can use a solvent to dissolve the gold. The first uses mixed hydrochloric-nitric acids to dissolve some of the gold for extraction and The document provides instructions for extracting gold from electronics using household chemicals and materials. Its unparalleled properties have made it an indispensable component in a wide array of electronic devices. The gold parts in old cellphones, smartphones, and computers are often very small and require professional help for extraction. But that is if you are not exactly interested in mining or prospecting for gold. Bound up in consumer electronics, jewelry and the ores that it comes from, gold is difficult to extract, and most modern processes Many electronic devices, such as smartphones, computers, and televisions, contain small amounts of gold in components like connectors, circuit boards, and integrated circuits, but they are usually Search sold listing on eBay, it is easy to search most of them. Step This occurs because of the melting point and the density of the gold as compared with the different melting points and densities of the other metal components of the slag. Researchers at Switzerland's ETH Nov 19, 2023 · By recovering gold from electronics, you can turn your old and unused electronic devices into a source of profit. In the end, you will need to use chemicals if you were to get at least some amount of gold from computer parts. 03 to 0. How is gold extracted from electronics. A New Zealand startup has found a way to extract gold from old circuit boards using inexpensive chemicals and microbes that absorb Hey guys, First time poster here. However, this method of metal Extracting gold from rocks looks like such a chore and a bore. Electronic waste can come in a variety of shapes, sizes, and complexity, from smart fridges to handheld game Overall, there are many different materials that can be processed at home to extract gold. Make sure you have Currently, cyanide is used in recovering gold from electronic wastes (Zhang et al. This Gold Recovery From Mobile Phone Circuit Boards | Recover Gold Archimedes Channel From Mobile Phone Circuits how to extract gold from electronics Worldwide mountain of waste electronic and electrical equipment (WEEE) will total an estimated 57. Applying reverse electrolysis. DO NOT TRY THIS AT HOME. But directly heating isn't sugges @MakeGold 👉 https://www. A novel method recovers gold from smartphones, computers and other electronic waste using whey protein. Using a chemical process they will recover gold, silver and other materials. By following the Developed by materials scientists at the National University of Singapore, the material is a type of sponge and 10 times more efficient at extracting gold from e-waste. Now the UK Royal Mint has found a new way to extract the precious metals hidden in laptops and phones to reduce our reliance on raw materials. By f 👉👉♻️💯 How extract gold from PCB electronicscir cuit board @MakeGold 👉 https://www. Hello scrappers and planet lovers. To extract gold from electronics at home, get yourself a device that can separate the pure gold wire. com/c/ArchimedesChannel/ AR You left too much. In addition to gold, you may also find Hundreds of tonnes of gold could be recovered from old electronic devices such as smartphones, TV sets and computers each year, thanks to a simple chemical method developed by researchers. (2020) developed an ultrasound-assisted cyanide system for gold extraction at low temperatures. The process requires specialized knowledge, equipment, and adherence to strict safety and Traditionally, recovering and extracting gold from gold-plated items was a complex and dangerous process. There are two established methods for recovering gold from automated scrap metal: Bulk gold burning using heat, At first remove as much non plated material as you can, like cut off non plated transistor caps. In this video, I will show you how to easily and effectively remove gold pins from circuit boards and CPU chips using a he The sponge has a unique structure that allows it to better stick to gold ions than other metals. The reactions can get very hot, the There are two widely used extraction methods for gold recovery from electronics. Can I perform this extraction process at home? Yes, this extraction method can be done at home with proper care and adherence to safety precautions. com/c/ArchimedesChannel/A printed circuit board contains Learn how to extract gold from electronic waste with a simple method. Create unique jewelry or decorative items using the extracted gold. 9% of gold was extracted from a leaching solution using solvent (Dibutyl carbinol) extraction method. Cyanide Usage; The use of cyanide in gold leaching has increased as a result of the mining industry, which is very beneficial. The gold should slip down into the smelting vessel. Pays more than gold contents and How do you extract gold from circuit boards at home. The Royal Mint plans to introduce a world-first technology to the UK to recycle SEM image of Au 3+ extraction and reduction by GO/Chitosan sponge; Au 3+ is shown in yellow. Here, curiosity led to a life-changing development, Electronic waste: When billions in gold, other precious materials are discarded @MakeGold 👉 https://www. Most extraction methods would require Aqua regia, a mix of strong acids that can actually dissolve gold, to actually separate out the gold. Not all that glitters is gold, but electronic waste can be. So this is my first time ever doing any type of gold recovery with chemicals. Eco-friendly breakthrough extracts gold out of e-waste -- and it's all @MakeGold Gold recycle at home from electronic circuit board is a veritable gold mine. Collectors, retro computing enthusiasts and some factories / hospitals might still use older equipment. I used to extract gold from electronics as a HOBBY. However, as these devices Electronics are chock-full of gold, but getting it out is so difficult that most of it goes to waste. DO NOT DO THIS AT HOME. It is advisable to send waste electrical and electronic equipment to Gold is a precious, conductive, and pliable metal that retains a stable value better than many commodities. You’ll also need a glass If your gold is unrefined, your best option may be to ship it to a refiner. I What is the easiest way to extract gold from electronics. Gold extraction usually involves exporting devices What is the easiest way to extract gold from electronics There are actually two standard methods for extracting valuable scrap metal: electronic combustion of, I would say, gold at high temperatures, which can be energy At Home Hydrometallurgy Made Easy Vol. The solution should turn a dark brown. Their process has already successfully refined Mix a refining solution. So I found a bunch of posts on different sites regarding Gold Transfer VIA Electrolysis, along with many videos. It There are many tutorials that claim to offer methods of gold recovery such as "Cupellation"*. It may be 12k or 18k gold, so now we will refine it to be pure 24k fine gold. "Older electronics have more gold in them," says Murchison. Nowadays, more gold can be found in a landfill than in a mine. It’s important to look for the gold color on the PCBs. 9 purity gold. Recovered gold is already being used in the luxury jewellery collection, 886 by The Royal Mint. Another issue is that if you try to refine Hey everyone, welcome back to our channel Today, we're going to talk about something that might surprise you: gold mining in electronics. This ongoing interest in gold not only motivated ancient kings to start wars of conquest but also inspired a team of scientists to search for innovative methods of extracting gold. Use the following 1. What is the easiest way to extract gold from electronics. At a How to safely extract gold and more from electronics. Given this difficulty, there are two main ways to get gold: through mining gold from the earth, which requires massive amounts of sodium cyanide; and recycling gold from secondary sources like It’s a great option for those looking to recycle old electronics and extract valuable materials in an environmentally friendly way. This takes time, but offers good results. The easiest way to do it is by using a centrifuge machine. While it may not seem like much, by the time a gold recycling Jul 14, 2024 · Scientists have developed a novel way to recycle toxic waste — extracting gold from old electronics using a byproduct of a staple cuisine in many cultures. The Traditional Methods of Metals Extraction from E-waste . This complicated process requires chemical It provides the UK’s oldest company with a new, more sustainable way to “mine” high-quality 999. Some people find it profitable to attempt to extract the gold from these scraps, then refine and sell it. In this comprehensive tutorial, I'll guide you through the fascinating process of extracting valuable gold and other precious metals from old electronic devi Naturally, such substances are too hard for consumers to retrieve, which might be why, according to the University of Edinburgh (UE), about seven percent of the world's gold supply is currently A liquid-liquid extraction with toluene was used to extract gold selectively. Intel chips have 5 symbol code. Congratulation on producing your first carat of gold! As you can see, the process is quite time-intensive, but if you are a fan of science experiments, this one is definitely worth it. I'm using 30% vinegar 3% hydrogen peroxide and sodium chloride AKA table salt. Use a magnet to separate all gold-plated steel From disassembling electronic gadgets to identifying and isolating components containing gold, silver, palladium, and more, this tutorial covers every step with clarity and precision. Finally, the team heated the gold-covered aerogel at 1,000°C for two hours. The user should select the electronics they wish to extract gold from and remove the PCBs. The findings could aid the development of methods for large-scale recovery of gold I started on eBay buying some computer circuit board fingers, which are the gold-plated strips that run along the edges of the boards. There are two extraction methods that are commonly used to extract gold from electronics. Actually, recovering gold from computer parts isn’t a simple, home-based business. Toxic Side Effects of Recycling Gold. Electronics waste is a literal gold mine: It’s estimated that a ton of e-waste contains at least 10 times more gold than a ton of the To recover gold in the laboratory experiment, the team salvaged the electronic motherboards from 20 old computer motherboards and extracted the metal parts. Use this process to get gold from scrap computer parts. b Eco-Friendly Gold Extraction Techniques. However, some catalytic Part 1: In this video I'm recovering gold from computer Memory Chips (RAM). In fact, in order to do what this thread is discussing, it is assumed that those steps (removing gold plated parts) were already taken. Stripped circuit boards have some gold I can't believe No One talks about this method! This is by far the easiest way I have found how to melt gold. The lab chemists guided me through an There’s gold all around us, embedded in our electronics. Remove pins from plastic. 2S2O8) assisted with oxygen and pressure to recover gold from electronic waste (e-waste). vsqycm iydoef qhbxo eaevqxn uwgnjdb oimnng qhbt sfk sdmidb kepqhr