Recent content by LenE

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    The EPYC 7702 Demolishes my Dual XEON platinum rig ...not even close

    I will show my ignorance about the current state of play with cryptocurrencies and ask if this rate is worth it? What is the approximate time frame to break even with buying 7702 system, assuming current values of Monero?
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I finally got my replacement processor last night. So far, it has been running very well and seems much more stable than the original. I’ve been pushing it through more Folding@Home for the last 22 hours, and no problems have turned up so far. According to Ryzen Master, this particular CPU...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    F@H still has the 32 thread limit (actually 31) on Windows. That’s interesting that one of your clients had the same issue twice on a 3990X. I had found a thread on another site where an owner of a 3970X had discovered a bad core, which is what pushed me to start parking cores. On the one...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I started the process on Sunday night, but I still haven’t gotten an RMA yet. For some reason, the AMD e-mail system stripped all of my attachments, and they can’t proceed without photos. They tell me that if they can’t verify my pictures within 10 days, the ticket will die. I’m going to try...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    So it turns out that you can't deactivate just one core in Windows 10. Using Ryzen Master, I could turn off the suspect core, but there is a requirement to turn off cores symmetrically across CCX's. This means I had to turn off seven additional cores to verify the suspect core. Turning off...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I got some thermal paste from a friend and put it back together to test again last night. Unfortunately I am still seeing the same instability. My friend’s thermal compound had laid around for a few years, so it was a little thicker. I saw temperatures about 10°C higher than what I was seeing...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I don’t know if PBO on my system is an overclock. When it is disabled, all cores are locked at the base frequency. When it is enabled, cores can boost within the advertised envelope or sleep, and I don’t get any of the scary overclocking warnings that I get when I visit the overclocking tabs...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I pulled the CPU and re-seated it. Good news is that I didn’t have any bent pins, and the pads all looked immaculate. Unfortunately, I found out on reassembly that I am out of thermal paste. It looks like Newegg and Amazon are also completely out until June 1. Here is the socket. The...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    Yes. Very similar. I had no issues running Prime95 with in-place 16k FFT’s, though. I can say that on some workloads the failures would happen pretty quick, as the fans were ramping their speeds and not yet hitting peak. other times, the machine is just chugging along for an extended period...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I went back into the BIOS and turned PBO and SMT back on, the default settings for the motherboard. I first hit the problems in Linux with all of the default settings, so I reset these to see if this would change the Windows experience. Boy did it! Folding@Home is no longer stable. It is...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    OK, I tried this one and turned on all of the CPU instruction set tests for the cpu. I got no errors through a 15 minute run (38 cycles, 27.379 T operations). This was far less taxing than Folding@Home. I guess what I can't wrap my head around is if this CPU is perfectly functional under...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    OK, I got Windows up and running, and everything appears to be normal. Since I had immediate issues running Folding@Home on Linux with all of the cores enabled, I threw that at it first. Absolutely no problem running on all cores. Resource manager shows every core using about 90% of available...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    Will that identify a bad core, or will it just fail if a bad core is present?
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    Did I diagnose a hardware problem correctly on a Threadripper?

    I was really fearing reseating. I shouldn’t, but I am super paranoid of making stupid mistakes with the super-fragile pins. Still a really good idea to make sure to re-check this. Any suggestions on what to run as a test on Windows? Coming from a macOS and Unix background, I am completely...
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    Did I diagnose a hardware problem correctly on a Threadripper?

    Thanks! I will do that tonight and report what I find.