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BSOD at start windows - cpu author of crime
history: cpu working 3,5 years on 46 multiplier (4,6Ghz). all fine, auto vcore, but with monitoring vcore and temperature by AIDA and core temp (~80 C maximum, and only in summer). (2600k i7).
yesterday i was trying multiplier up to 48, and update firmware of bios to 2303 (asus p8p67)
start render in after effects. After few hours - BSOD.
after rebooting - bsod at starting win7. Same code of bsod. In 95% attempts - same problem.Sometimes there was the other code:0x124 The system encountered an uncorrectable hardware error
But sometimes(~5%) - windows was starting good, but after few minutes - same bsod.0x09c machine check exception
I`m reset bios settings, take out battery from motherboard, experiments with settings - bsod. manual voltages, - bsod. reintstall windows - bsod on any progress.
Why exactly this situation was caused by CPU? I have the other pc - cpu and motherboard are the same (firmware version is the same too). I was changing hardware step by step. And found author of bsod – cpu, after installing him on second pc - and bsod was there. And cpu from second to first pc – was working.
After many experiments and tests – I launched windows with the next settings in bios:
hyper-threading - off
turbo boost - off
c1e, and other energysaver - off
spread spectrum - off
only one core at work
3500 Mhz
auto vcore (~1.18 from core temp)
manual secondary voltages:
VCCSA 0.925 V
VCCIO 1.050 V
CPU PLL auto
dimm - 1.5 V
With this settings system is stable, after this post I will try other (most powerful, and add more cores) settings.
and now i have minidump, and other files from FAQ for bsod (in attach)
how to fix this problem?
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little update - now working at 4 cores and HT. but loading often not stable...
Last edited by matuzalem; 02 Feb 2015 at 06:52. Reason: progress