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i7 950 BSOD 'a' while sitting on desktop

post #1 of 6
Thread Starter 
Problem signature:
Problem Event Name:BlueScreen
OS Version:6.1.7601.2.1.0.256.1
Locale ID:1035

Additional information about the problem:
BCCode:a
BCP1:00000000000000B8
BCP2:0000000000000002
BCP3:0000000000000001
BCP4:FFFFF80003171773
OS Version:6_1_7601
Service Pack:1_0
Product:256_1

I think it might be a QPI/VTT error but I am already at 1.48VTT and the next bump in my mobo is 1.55... any ideas?
justmypc
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justmypc
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post #2 of 6
What Do Your Voltages Mean?

part of troubleshooting is deciding if its the operating systems fault and not the hardware. maybe missing system files or windows updates are needed. maybe a clean windows install is needed if that's the case.

i have never seen those particular windows blue screen codes before for core i7.
post #3 of 6
Very nice, like the break down,
+1 rep mate

Bit of extra info
http://www.overclock.net/general-processor-discussions/940091-complete-list-bsod-codes-when-ocing.html

That "BCCode: a" is that the first bit of the error code at the bottom of blue screen? should be more like 0x000000A1 which = 0xA1

If it is 0xA1, up ICH volts by a notch, and post back if that fixes it, would like to know if we got a new error code.

If that does not fix it and it is 0xA1 google ram 0xA1
Edited by Tigerpaws - 8/4/11 at 6:31am
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Slug
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post #4 of 6
0x101 = increase vcore
0x124 = increase/decrease vcore or QPI/VTT...have to test to see which one it is
0x0A = unstable RAM/IMC, increase QPI first, if that doesn't work increase vcore
0x1E = increase vcore
0x3B = increase vcore
0xD1 = QPI/VTT, increase/decrease as necessary
0x9C = QPI/VTT most likely, but increasing vcore has helped in some instances
0x50 = RAM timings/Frequency or uncore multi unstable, increase RAM voltage or adjust QPI/VTT, or lower uncore if you're higher than 2x
0x116 = Low IOH (NB) voltage, GPU issue (most common when running multi-GPU/overclocking GPU)
0X109 = Not enough or too Much memory voltage

EDIT: After posting this I checked the link above, it's the same stuff.
So sexy it Hz
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So sexy it Hz
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post #5 of 6
Thread Starter 
Well I bumped QPI to 1.48, and after I still crashed I bumped to 1.41 QPI and its working currently! No bsod's for 10hours, and BC2 stable.
justmypc
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justmypc
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post #6 of 6
Yeah QPI voltages are annoying.
So sexy it Hz
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So sexy it Hz
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Hard DriveMonitorPowerCase
[2x120GB Vertex2] [WD6401AALS] [WD15EARS] [WD30... [Dell 3007WFP] [Acer P191w] [TX850] [Silverstone FT02-BW] 
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