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High CPU Core Voltage (stock settings)

ok with the underclock bf1 froze while loading, appears less stable

when going back in to the bios to remove the underclock and set back to auto, i noticed the vcore voltage was 0.9v, so the motherboard appears to be setting it dynamically. it's setting it at 1.217v with stock (auto) settings

the ram voltage is set by xmp @ 1.65 which i think is correct, or is there something else i should be looking for?
 
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ok so i managed to play a full game of bf1 for the first time without issue with xmp disabled.

is there a better way i can test without stressing the components too much?

max temperature reached 68°C which is a hell of a lot better than it was
 
okay so i've reflashed the bios, loaded optimised defaults and the only thing i've done is enabled the xmp profile for my ram

ltron said:
Can you download Aida64 from here: http://download.aida64.com/aida64extreme580.exe
Open Aida then go to tools, system stability and run the default stress test for an hour and see if it crashes. If it doesn't crash then maybe the GPU is at fault.
Click to expand...

ok installed aida and ran it, crashed with bsod after around 30 seconds (CLOCK_WATCHDOG_TIMEOUT)
 
checked the jumpers, they're in the default position (on). bios is at full defaults with xmp disabled, will run memtest now. am i checking both sticks at once, or do i need to remove one and run it, then swap with the other and run it?

core voltage is 1.224v
ram voltage is 1.500v (1333MHz)
 
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yep the memory is placed in the correct slots

memtest is currently running now, will let you know the results. do you know roughly how long 2 passes will take?
 
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ok so the first pass completed without error in 20 minutes, the second pass is currently at 46% after a total time of 48 minutes, still no errors but much slower than the first pass
 
yep, memtest completed 2 passes without error in 90 minutes.

after i'd swapped everything over to the new case it was still rock solid stable, played bf1 and a number of other games for a few hours without issue. it's only since the core voltage has decreased (as a result of updating in the bios) that i've had stability issues.

i managed to run aida64 for around 10 seconds, and then stop it before freezing up and noticed that one of the cores spiked to 83°C, but it quickly came down once the fans spun up. None of the core's voltage went beyond 1.237v (see image below).

FyXNXh5.png
 
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should I increase voltage on the ram but leave the timings as they are for 1333mhz? My xmp sets 1.65v and increases the timings for 2133MHz.

I haven't managed to run aida for more than 20 seconds previously - it freezes up and blue screens with CLOCK_WATCHDOG_TIMEOUT
 
ok ram voltage is @ 1.65v without xmp (running at 1333Mhz). I ran Aida for 2 minutes without crashing, cpu core voltage was 1.237 on one core, and 1.236 on the other 3. CPU temps got quite high still (i presume this is to be expected while stress testing?) - 83°C peak on Cores #0 and #1, 82°C on Core #2, and 81°C on Core #3, though for the most part temps sat around mid to high 70s on all 4 cores.

I haven't reseated the cpu or heat sink yet as I don't have any thermal compound. I found some cheap old crappy stuff, but I don't want to risk it. Will order some decent stuff before I do it.

What's the next step? Should I run Aida again for longer, or is it a bad idea given the temperatures that the cores are reaching?

edit: just had another bsod, was just casually browsing at the time :|
 
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okay done a fresh install of windows 10.. installed hwinfo and aida, ran for around 30 seconds on stock settings before blue screening with MACHINE_CHECK_EXCEPTION (this is the first one i've seen that isn't CLOCK_WATCHDOG_TIMEOUT).

I loaded aida up again, this is what it shows after the latest bsod

oueQyHs.png

this is with xmp enabled. if i disable it it's stable for longer, but inevitably freezes up
 
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another strange thing i've noticed. my corsair h75 has the two radiator mounted fans connected with the y-cable supplied by corsair to the cpu_fan header. the pump is connected to SYS_FAN6 as it sits next to the cpu, however, it doesn't appear in the bios? the bios only shows system fans 1, 2, 3 and 4. i have two 140mm case fans connected to 3 & 4 which show up with their fan speeds normally. 5 and 6 don't appear in there at all.

also, if i manually set my cpu's voltage, it'll stay at that voltage (according to hwinfo and hwmon), whereas if i set it to auto it'll fluctuate based on load (~0.725v idle, 1.236/7v under a stress test). it hit 1.236v on 3 cores, and 1.237v on 1 core after a 2 minute stress test) - no crash (xmp disabled)
 
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i've had core voltage on auto with xmp disabled previously, it seems more stable but does always crash eventually. how long should i be stress testing for?

temps are getting quite high still (high 70s) when the cores are pulling 1.236v. I'll get some decent thermal paste and remount the cooler head, perhaps the pre applied stuff is no good or maybe it's not mounted correctly? it's fine idle (all cores low 20s with the fans running quietly, under a stress test they spin up and the temperature spikes to high 70s)
 
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ok tried setting the memory timings manually, computer powers off during post. there were additional timing settings which i just left on auto, i only set the CAS Latency-tRCD-tRP-tRAS 11-11-11-31. DRAM voltage on auto appeared to stay at 1.5v, i couldn't see what it set it to after saving and rebooting because it reset the bios stating a configuration fault after switching on after it powered itself off. Tried the memory timings and manually setting the voltage to 1.65 - same thing, switches off during post.

I've loaded optimised defaults again - auto voltage, xmp disabled
 
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