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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: amd fx-9590 crashes if boinc set more than 2 cores |
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Thread Status: Active Total posts in this thread: 17
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jhseltzer
Cruncher Joined: Nov 18, 2004 Post Count: 15 Status: Offline Project Badges: 
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this is a new computer build. fx-9590 is an 8 core CPU. if I set boinc to more than 2 cores the system crashes and reboots. my old computer was a 6 core. I could run 4 cores at 100% (limited by heat).
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flynryan
Senior Cruncher United States Joined: Aug 15, 2006 Post Count: 235 Status: Offline Project Badges: 
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I'm not sure so I'll take an educated guess.
----------------------------------------Most CPU's today are sold with a relatively safe margin between their factory clock speed and their maximum stable speed. The FX-9590 is an enthusiast CPU where the factory speed is much much closer to the theoretical max limit of the CPU design. Therefor it will be more inherently unstable when loaded. It also has a 220 watt max TDP which means you must have a very robust aftermarket cooling solution attached to it. If your cooler isn't up to the task it will surely overheat and BSOD the machine. Normal factory coolers won't cut it with this CPU. What temps are you running when trying to load the CPU and is everything stock in terms of BIOS settings? If your cooling is sufficient, you might need to bump up the CPU voltage a hair in the BIOS settings to make it stable. There are other factors such as RAM incompatibility or incorrect RAM clock that could cause the same issues. [Edit 2 times, last edit by FlynRyan at Feb 8, 2017 3:41:56 PM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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this is a new computer build. fx-9590 is an 8 core CPU. if I set boinc to more than 2 cores the system crashes and reboots. my old computer was a 6 core. I could run 4 cores at 100% (limited by heat). if you run Win, I'd put Tthrottle (or similar tool) & run 100% on 6 cores...which gives you 6 days in 24h period...but your processes will be throttled down to cool down the temps!  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
this is a new computer build. fx-9590 is an 8 core CPU. if I set boinc to more than 2 cores the system crashes and reboots. my old computer was a 6 core. I could run 4 cores at 100% (limited by heat). We need some more info to properly diagnose. I am going to make assumptions that everything in this build is compatible with each other (ie mobo is confirmed to work with this cpu, ram is specified to work, no overclocking of any components, power supply is rated correctly...) -What type of cooling do you have for it? That is a heavy hitter CPU as FlynRyan has mentioned. I am not a fan of liquid cooling myself, but if you do get something with a quality pump that won't fail easily. It will be moving lots of liquid with the heat that CPU will be pushing out. If you go air, I hear the Hyper 212 EVO is all the rage for the enthusiast CPUs. Dual 120MM fans, lots of copper heat pipes, etc... As for the CPU cooler, did you perhaps forget to add the thermal grease to transfer the heat between the CPU and heatsink? Also, I have heard of it being done before where people forget to pull that piece of plastic off that protects the bottom of the heatsink, and it sits between the CPU and heatsink. We are all human, and make mistakes from time to time. -Have you installed a temp monitoring app to monitor the CPU temps? Monitor those very carefully as my first guess would be heat. -If heat is ruled out, I would go with power supply next. I have seen a faulty power supply do some really strange things. You could be chasing gremlins for days looking for bad RAM, bad CPU, bad mobo, and it may all trace back to the PSU sending out weird voltages causing all the other components to act up. If you have a spare PSU, throw that one in there and see if it makes a difference. (You mention a build, so I am guessing you build your own so are knowledgeable in these procedures) -As mentioned earlier, check voltages in the BIOS. Look for newer BIOS flashes, it is possible that the board you got had a crappy BIOS firmware, and somewhere along the line they fixed it or adjusted parameters slightly. -How much RAM is installed? Run a memtest. It could be that the OS is using lower levels of RAM and when BOINC kicks in, something in one RAM sticks is bad and causes the issues. Let us know how you are getting along with the troubleshooting. |
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jhseltzer
Cruncher Joined: Nov 18, 2004 Post Count: 15 Status: Offline Project Badges:
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I have a Corsair TX 650W power supply. Never had a problem. I was running this PS much harder in my last build.
I have a Corsair H90 water cooler. Have it manually set to max fan and max pump. I used 10% silver thermal grease. New, not hardened with age I have 2 temp monitors; 1 from AMD and Speedfan. Temp runs 102 to 110 F with 2 core running at 100%. The temp can spike very quickly. 32 Gigs ram, passed the diagnostic okay. swapped out with known good 16 Gig set and had same problem Swapped the CPU out with a known AMD 6 core and ran 4 cores at 100% with no problem. Flashed the latest Bio |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Doubtlessly connected [the title suggests BOINC is causing the computer to crash altogether]
http://boinc.berkeley.edu/dev/forum_thread.php?id=11460#75804 Admin, think this thread needs moving to the hardware forum, and the duplicate there needs locking/removal. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
If you were able to swap out to a different processor and it ran with no problems, I would suspect the 9590 of being the culprit. Possibly a bad processor, or maybe the voltages on that mobo dont properly support it? The max temps on that processor are in the 60C range; It seems like those numbers are high for only 2 cores being used and the other 6 at idle.
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flynryan
Senior Cruncher United States Joined: Aug 15, 2006 Post Count: 235 Status: Offline Project Badges:
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Given what you have said, the RAM, power supply, and motherboard shouldn't be an issue, My next step to try and get stability would be to go into the BIOS and downclock the CPU by 100-200 mhz and see if it will run stable.
----------------------------------------If it is stable, then you can either keep the downclock or try to raise the CPU voltage by a few hundreths or a tenth of a volt and see if it will run stable at the stock speed of 4.7 ghz, which is quite high by the way. The name of the game here is 24/7 crunching at a sustainable, reasonably power efficient clock speed. [Edit 1 times, last edit by FlynRyan at Feb 9, 2017 8:45:37 PM] |
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jhseltzer
Cruncher Joined: Nov 18, 2004 Post Count: 15 Status: Offline Project Badges:
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After fighting with this processor I've come to the same conclusion. It runs hot! I use a water cooler and run an open case with exterior fans, but I still can't cool it. I tried using TThrottle to control it. I found the temp even under a light load bounces up and down wildly and now I'm sure I'm crashing from high temp. So it's back to the old Athlon Phenom II 1055, a very stable workhorse. The FX-9590 is for sale and I'm looking for a Athlon Phenom II 1100. I don't want anyone to misunderstand, the FX-9590 is a very fast CPU, but doesn't like running under a consistent heavy load.
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KerSamson
Master Cruncher Switzerland Joined: Jan 29, 2007 Post Count: 1673 Status: Offline Project Badges:
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Reading the different posts, even if 220W represents a huge energy to evacuate (from a die point of view), I would really tend to suspect a bad processor.
----------------------------------------At first, I would try to ask for replacement. Processors are tested during development under high load conditions. Because of the 220W, I would not try additionally to overclock the processor, but it should be stable and reliable, even with 100% load during long period. Cheers, Yves |
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