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Windows 7: BC f4 error when heavily using my new HDD

30 Apr 2012   #31
tritous

Windows 7 Ultimate x64
 
 

I live in a country where the shops open after i start work and close before I finish. Boot USB is a preference to me, I'd been considering putting together a generic boot USB of tools for helping friends out but never got around to looking into it. ultimate boot cd (or usb) looks like exactly what I had been thinking of.

Only down side is these abnormal crashes are stopping me from being able to complete the download on my slow connection. Hardware monitors say my CPU hasn't passed 40C and GPU is a stable 58C, all voltages look stable enough to build a city on, and the ATAPI errors are completely desynchronised to the crashes. I've also had 2 crashes now where steam wasn't running, in one case where it wasn't even installed, in these cases when I was watching video.

I've tried a couple of graphics drivers now, old and new, it doesn't seem to have stopped the crashes. A tool I very much would be interested in: do you know of any utilities that can do an integrity check on GDDR?


My System SpecsSystem Spec
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30 Apr 2012   #32
tritous

Windows 7 Ultimate x64
 
 

Ok, finally get it run and find the bad news: I looks like I have memory issues. 3 addresses, single bit error, systematically (as the 3 addresses are very close I assume it's a single point error). Royal pain since it means a new ram pair.

I assume that this is very very capable of causing the sorts of errors i've seen without even getting a BSOD depending on what is writing to that area. It doesnt sound like the sort of thing that coulid relate to the SATA controller events though. I guess I should be grateful it's fairly high up in my RAM and I can get enough operation to order the new parts in.
My System SpecsSystem Spec
30 Apr 2012   #33
tritous

Windows 7 Ultimate x64
 
 

Just had another crash, and I was particular to check the RAM pair I kept was the correct pair. I have no doubts there was an issue with the RAM, just like i was sure there was an issue with corrupt sectors in my 250GB disk, but I guess there is a 3rd issue somewhere too
My System SpecsSystem Spec
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02 May 2012   #34
tritous

Windows 7 Ultimate x64
 
 

I just ran sfc (system file check) and all my system files pass their verification checks. This means that all my drivers are as they were before: versions I know for fact worked before. My hardware hasn't changed except for the disk which seems to work, so I'm really lost now for an explanation
My System SpecsSystem Spec
02 May 2012   #35
tritous

Windows 7 Ultimate x64
 
 

Update to my updated update (since edit still doesn't work for me). This time very interesting find:

Had a cut out, started up and got the flashing red alert saying one of the power adaptors for my graphics cards was not attached. Not something I'd expect to unplug from rebooting and a very worrying sign that it could be one of the expensive hardware parts.

The power adaptors were in on the gfx card, but were only 1/2 in and not clicked in place at the PSU end. It's a possibility that while plugging in the new hard disk my cable management took a knock or two.

I don't know if this could be a cause. It's possible that the couple of pins used to detect if the connector is attached were in, but two of the power pins were not, leading to the chip stalling every time it tried to do anything graphically intensive, it may also be unrelated to my random crashes. Does anyone have any thoughts on this hypothesis? Granted teh only proof it works is if it works, but if this is a viable reason I'll put my efforts on seeing if it's fixed, otherwise I'll keep trying to find a new point of analysis.
My System SpecsSystem Spec
03 May 2012   #36
F5ing

Windows 7 Ultimate x64
 
 

Sounds reasonable.

Back to the RAM for a sec: Were you sure the problem was with the sticks versus the slots?
My System SpecsSystem Spec
03 May 2012   #37
tritous

Windows 7 Ultimate x64
 
 

I can't think of any reason why the slots would fail on just 3 bits in side 3 particular addresses. If it happened to all addresses on that stick maybe.

I'm not sure if I hope the cause was my failure to utilise a basic 8 pin plug or not. as embarassing problems go this is between facepalm and facedesk.
My System SpecsSystem Spec
03 May 2012   #38
F5ing

Windows 7 Ultimate x64
 
 

Yeah, you're probably right about the memory. And I take it all the contacts for it were in good shape? Just trying to rule out any more issues due to memory.

So everything seems in order now that the graphics card is properly powered?
My System SpecsSystem Spec
03 May 2012   #39
tritous

Windows 7 Ultimate x64
 
 

the contacts were fine, in fact it visually appeared perfect apart from just 3 erroneous bits out of 2gb. Worst of all, matched pairs means it's two sticks I lose, although given that my 3 working sticks (2 more coming too) are all identical make and model I really question at time about the "matched pair" thing. Still, I can't seem to buy them separately and it's not expensive.

Embarassing, but it seems my gfx is working properly again. Along with your helps with the memory and disk analysis tools I think this closes all my problems. Thanks for the support
My System SpecsSystem Spec
04 May 2012   #40
F5ing

Windows 7 Ultimate x64
 
 

You're welcome! Glad to hear your battleship is all sorted out.
My System SpecsSystem Spec
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 BC f4 error when heavily using my new HDD




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