I can see there are a lot of threads asking for help but..

Erm not sure what this IBT stuff is... but i have reseated now and i'm getting 82 on load (prime95 for 10mins) mid 30s at idle. Is this normal?

The stop message is,

Crash address: ntoskrnl.exe + 705c0
Caused by address: hal.dll + 12903
Bug checkCode: 0x00000124
Parameter: fffffa80'0a2fe028

Does this help at all?

I have now adjusted my core coltage to 1.365
 
IBT is "Intel Burn Test". It's like prime but will stress the CPU more (hence hotter) and will show instability within minutes, not hours.
 
Right. What cpu and clocks? How much memory in the system? How many GFLOPS in the GFLOPS column?

At risk of hijacking the thread - I'm looking for concrete examples of IBT passing but something else e.g. a game crashing.

Asus P8P67
2x2Gb XMS3, undervolted @ 1.5, Stock Clocks, Stock Timings (1T Command Rate however)
i7 2600k @ 4.6GHz, ~+0.10 Offset with Ultra LLC (+75% IIRC), Peaks at ~1.37Volts under full load. (Offset is from memory, it MIGHT of been a little higher or lower, I spent ages playing with +50% and +75% LLC with + or - offsets to try balance peak Vcore and temps)
102-105GFlops (High 5 Pass Stable)

Interestingly I can IBT/Game/Whatever else perfectly stable at 4.5Ghz with a - offset at ~1.27-1.30Vcore. After I leave the system idle for a few hours it crashes though (lol). Only thing I could think of is that it's getting too little volts at 1600Mhz but I do not see why it would matter seeing as the system is doing nothing. Rock solid when in use. Need to use Auto offset @ 4.5Ghz which peaks at ~1.35Vcore and tails off to ~1.056Vcore at idle to keep it crash free at all times.
 
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Sorry david_129, you don't need to follow this at present, no :) You will however get higher temps using something like IBT, as prime95 is old and useless. 82 sounds high, other threads show mid 70's more commonly.


Thanks mate. According to the theory, 105 is still a little low, you'd be aiming for 0.8*32*4.6=118 GFLOPS really at that clock. More mem needed, or fewer background processes. Fancy doing some research? :)

You're probably right about it cacking it when it's clocked down. IIRC there is software which can modify the volts at every individual multiplier?
 
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I can mess around with it. Using 2048MB of RAM at 4.5GHz nets me 94 forcing 8 threads. Auto does not seem to max out all cores for the duration of the test but nets the same GFLOPS result? Memory limited?

Tried a few more results at 4.5GHz clearing as much RAM as possible

Mem Used - GFLOPS
2500 - 98.9
2958 - 101.2
3144 - 101.4

Assuming I need far more free to get closer to the calculated 115?

Edit - Somewhat see where you are going with this, suggesting IBT does not have the headroom to simulate load a game might?
 
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Would it be totally unreasonable then if you guys could start your own thread? i'm not even sure how you guys got onto this one tbh but thanks for your help anyway.

I'll try another reseat tonight, but i don't see what i'm doing wrong at present, even left eh case open!
 
Ok david_129 I've read back through the thread and there are a few things.

Firstly, you're clearly a beginner to this and need to do some homework. To make a CPU work stably at a given clock speed without errors (BSODs) demands a certain voltage. At stock the clocks/voltage is set quite conservatively, allowing people to overclock by increasing the clock speed.

You can usually go some way at around stock volts (maybe 25%) but eventually the chip won't keep up and will need more power. The power consumption jumps up quadratically with voltage and there are limiting returns, so most people choose a voltage (fairly arbitrarily) say 1.35 and clock as high as poss at those volts.

The BSOD you're seeing is nothing to do with drivers, BIOS versions, your SSD drive, your version of Windows, or your cat Pickles. It's purely (as others have said) that either your chip needs more volts for that clock, or it's overheating.

If it's true the core temp is exceeding 90 degrees (what software told you this?) you're in trouble! That cooler should keep that chip at less than 60-70 at the very very most.

Use something like Realtemp to measure temps and let us know what it says. If you've already reseated it and the paste looked smooth without any obvious irregularities/gaps in the interface, then you must be sat in a sauna!

I can mess around with it. Using 2048MB of RAM at 4.5GHz nets me 94 forcing 8 threads. Auto does not seem to max out all cores for the duration of the test but nets the same GFLOPS result? Memory limited?

Tried a few more results at 4.5GHz clearing as much RAM as possible

Mem Used - GFLOPS
2500 - 98.9
2958 - 101.2
3144 - 101.4

Assuming I need far more free to get closer to the calculated 115?

Edit - Somewhat see where you are going with this, suggesting IBT does not have the headroom to simulate load a game might?

Yes mate that's pretty much my theory. Ideally you could test with more mem and it would fail same as BFBC2 (that would be great) but unless you fancy an upgrade I can't see it happening. Cheers
 
Until I feel a need to get more RAM (Which at current I do not) as long as I am stable it's all good. Would be nice to see if IBT could push the system over the edge like BC2 can.

OP - Sort temps, more volts. Gogo! :D
 
Thats really helpful thank you.

I am newish to OCing on these newer chips which is why i got OCUK to do it for me in their bundle, so i'm just changing what was setup for me tbh to get it stable again.

At 80 degrees it seems much more stable and i've tried the IBT test too and it was fine for 10 iterations.

I am not so good on these bluescreens tbh as i was getting them before with OCZ Vertex 3 and then again from a dodgy g card, all in the same build!!

Appreciate it though, i'm popping a better cooler tomorrow, Noctua dual fan job and will report back with temps then. If there is anything else you can think of, please let me know, thanks again.
 
Ok new cooler, updated bios, new voltage set to 1.365.

Got the Noctua DH14 - runs idle at 30-33 load 68-70. Seems much better.

I've used LinX (10times), Prime95 (20mins) and IBT (30 iterations)

Is there anything else i should try. Seems to be stable on above..
 
I set IBT to 'all'

4.6 is what i'm at, noticed that in power settings the power settings had the proc on minimum 100%... changed that to 5 so now it downclocks at idle which has helped i think
 
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