Stable in Prime but not in Intelburntest?

immortalcloud

immortalcloud

immortalcloud

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Joined
21 Mar 2010
Posts
77
Hi,

My i5 is at 4.2ghz and is prime stable with temps approx 68 at full load. If i run intelburntest , it fails after the first test and dueing the tests the temps peak at nearer 80 degrees.

Whats going on?

Matt
 
One of two things.

1) You're not stable
2) IntelBurnTest is buggy and crashing on you

I 'think' most will tell you to use something like LinX rather than IBT, however others would argue that no matter the program, you should be able to pass it all day every day to call your system stable.
 
immortalcloud said:
Hi,

My i5 is at 4.2ghz and is prime stable with temps approx 68 at full load. If i run intelburntest , it fails after the first test and dueing the tests the temps peak at nearer 80 degrees.

Whats going on?

Matt
Click to expand...

How long have you prime tested, I remember an old P4 system which was apparently prime stable, but suffered random crashes... Eventually I found that after 16 hours it failed prime, retested, failed 16 hours on exactly the same test... Reduced FSB by 1mhz, system passed prime, and the random instability vanished.

Prime testing for a few hours doesnt mean your system is stable.

Prime tests both memory and processor, in different ratios depending on the test set running, the tests which use less ram make the cpu much hotter. The intel burn test is designed to make the cpu as hot as possible, but doesnt put all that much load on ram. Ideally you should test a system with several different test programs, I only rate a system as stable after it has run various tests for 2-3 days non stop.
 
Last edited:
Hi,

Right...

Ive lowered the overclock to 4ghz now and set the voltage to auto in bios, which it put it at 1.344 as it says in CPU-Z.

Its still coming back unstable in intel burn test on the 4th go! Max temps were 82/81/80/81

Why?

Matt
 
You're gonna need to give a hell of a lot more information to be able to start answering that question.

You don't want to be running auto voltages, and your temperatures are on the high side.

As Corasik has asked, just how long did you run Prime for? Have you tried LinX?
 
At one time IBT had a lot of problems with 8 threads causing it to crash all the time.

I prefer to use Linx instead, it's based on the same Intel Linpack benchmark but just has a different GUI.

Intel Linpack does seem to be a lot more stressful than Prime95 though which is why it has gained so much popularity.
 
Well , im running the following :

Intel Core i5 running at 4ghz @ 1.344v
Asus P7P55D Pro Motherboard
4gb G-Skill Ripjaw 1600mhz ram running at 1600mhz @1.5v
Corsair H50 Cooler , only 1 fan not push/pull
OCZ StealhXtreme 600w PSU
Sapphire 5770 Vapor-X Graphics running at 960/1400

In windows it feels brilliant , not laggy at all so dont know why its failing on IBT. Prime says it is stable (1hr or so run)

Also , i tried Linx and it said it was running but the temps never went over 40 which i would say is impossible so it musnt have been doing anything?
Matt
 
See what i mean?..

tempn.png
 
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