GPU Mining - Where GPU Miners Discover the Best GPU Mining Hardware
gpuminer is a Reddit community dedicated to GPU mining of digital currencies also known as alt coins. Discover the current best mining hardware, mining software and hash rate settings to get the most out of your GPU mining rigs. We cover Ethereum mining as well as other crypto currencies including: Dash, Monero, Decred, Zcash, and Library Coin.
Where are the GPU mining rigs that used to mine Bitcoin?
I wonder what happened to GPU mining rigs when ASICs took over the market and Bitcoin mining on GPUs became unprofitable? Let's discuss ! Also, if you were a bitcoin GPU miner or are mining any other crypto with GPUs today then mention your system specs as well !
The Power Supply is dead, Long Live the Power Supply!
My Corsair AX760 power supply has been a real trooper, but it has finally died enough to be put to rest. I initially bought it to run a bitcoin GPU mining rig 24/7 in my basement. It faithfully powered 4 overvolted and overclocked Radeon GPUs for almost two years before I sold the parts off. However, the PSU did not come out unscathed. After about a year I was noticing the PSU was running pretty how and I just thought the fan was not moving enough air so I removed the built-in fan and replaced it with a higher CFM one that was plugged into the motherboard to run at 80% all the time. This helped for a while, but one day the system randomly turned off and when I went to check on it I smelled the magic smoke. I disassembled the system and found that the 2 modular power ports and cables going to the 2 higher powered GPUs (5760s I think??) were melted. I ripped the destroyed pci-e cables out of the PSU and grabbed some of the extras that were still in the box and plugged them into unused modular ports on the PSU. It looked like the plastic around the connectors had gotten too hot and melted, but nothing looked damaged on the PSU side (aside from the plastic being melted and broken) I tested the PSU on a spare motherboard I had sitting around and the system fired up just fine. Going back to the mining rig I tried to determine what caused the overdraw of power. The GPUs were overvolted and overclocked, but the system was only drawing about 600w total, with the CPU drawing about 20w. I dropped the voltage and clocks slightly on the GPUs that melted the connectors, but also decided to test the outlet the rig was plugged in to. Somehow the outlet was wired in reverse, with the hot side going to neutral in the outlet and vise-versa. I was not sure how the PSU was even able to operate with the outlet being wired backwards, but I fixed that and the PSU ran fine for another year until I dismantled the whole thing. Then I got into homelabbing. I built my first whitebox server, which is still serving me well to this day (dual xeon 2670 cpus on a supermicro jbod board in a rosewill rackmount case) and used my trusty AX760 for the power source. Everything was fine until Tuesday of last week. I started getting random reboots (emails about unexpected shutdowns while at work) and decided to take a look at the system during the long labor day weekend. I cracked open the server Friday night immediately after 5 shutdowns occurred in rapid succession, even before the system fully rebooted. I should have turned the server off on Tuesday, but all of my documents are on it that I was using. Anyway, when I walked over to my rack I could immediately smell burning plastic/solder and flipped the PSU switch off. Once I pulled the system out of the rack and removed the PSU I could tell that it had melted at the modular connectors again. My system uses 2 EPS12v CPU cables and both were melted at the modular connector. Now, my server does video encoding for me and when that is running it usually draws around 500 watts, which just like my mining rig does not seem like a lot for a 760w PSU and the encoding only runs for maybe 4 hours a day most days. Although the PSU still has 2 unmelted modular ports that I could plug new EPS12V cables into I decided it is not worth risking damage to the system now that I have (4) 8tb hard drives. Back when I initially built my server I only had a couple hundred gigs worth of files and I always planned to replaced the PSU at some point, I just let it go too long. So now, I present my new PSU, a Corsair RM1000x! I have also backordered another EPS12v cable for it so that I can finally plug my PSU into the optional power connector on my motherboard, which may be part of the reason the CPU cables overdrew and melted? I am really not sure. I took this time to finally tidy up the cables in the server that were the way of the airflow, as well as adding a second fan to the "main" CPU which has always run 10c hotter than the other CPU. I also double-sided tapped a spare 120mm fan onto the new PSU since it does not see a 500w load as enough to turn its own fan on, but I needed extra exhaust cfm. https://preview.redd.it/mx4z6enfi3k11.jpg?width=3264&format=pjpg&auto=webp&s=6a706e9708bd6ca54e538b127b38257ad20a8995 https://preview.redd.it/dhzksrj0j3k11.jpg?width=3264&format=pjpg&auto=webp&s=ac8cc5b26aea337d38a178f7e8de55158e8e5a07 Poor PSU :( https://preview.redd.it/st00mg0pj3k11.jpg?width=2448&format=pjpg&auto=webp&s=b92425a4dca9b2914c9e294ed2130ec60b54be05 https://preview.redd.it/k6vq04ypj3k11.jpg?width=2448&format=pjpg&auto=webp&s=4082123f174a6da0c8285d7b3f3f4b6155777eff
Can someone get GRLC on a mainstream US news channel/website by the end of this week?
In my Social Studies class we are doing a "Current Event" project, where we write about a, well, current event. The event has to be sourced from a news website and must be no more than a week old (to prevent someone from doing something that happened eight years ago). I thought it would be hilarious if I did mine on Garlicoin, the best crypto, hitting mainstream news. if this is a bad idea (like people-with-insane-13 GTX180ti-bitcoin-GPU-mining-rigs-drive-GRLC's-difficulty-to-the-moon bad) then dont make any effort towards doing it, but let me know in a kind way, dont be a dick about it.
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Buying a $800 Pre-built Bitcoin Cryptocurrency Mining Rig ...
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