Stable in Prime but not in Intelburntest?

immortalcloud · 26 Mar 2010 at 18:36

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

immortalcloud · 26 Mar 2010 at 19:49

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

immortalcloud · 26 Mar 2010 at 20:28

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

immortalcloud · 26 Mar 2010 at 20:41

Hi,

Ok i will run it overnight.

Any idea why linx is running but the temps arent going up?

immortalcloud · 26 Mar 2010 at 20:45

See what i mean?..

immortalcloud · 26 Mar 2010 at 20:52

Ive uninstalled it and installed it again and its working now. Just waiting for the results.

Will post as soon as its done..

Matt

immortalcloud · 26 Mar 2010 at 21:09

Its failed! Aargh , what could be the problem?? Temps were upto 84 degrees too!

immortalcloud · 26 Mar 2010 at 21:57

What cooling could i do thats better than the H50? , do you think a push/pull with better fans would make it significantly better?

immortalcloud · 26 Mar 2010 at 22:29

So could it be that its the ram thats causing linx to fail?

immortalcloud · 26 Mar 2010 at 22:38

Ive just overclocked it back to 4ghz with 1.35v and 1.65 for the ram. Just running linx with 3 tests to see if its stable in that

Matt

immortalcloud · 26 Mar 2010 at 22:40

Aargh , failed on first one. Do you think its because i havent increased the memory controller voltage? If so whats a good setting?

Matt

immortalcloud · 26 Mar 2010 at 22:51

Right , ive gone back into bios and upped the cpu voltage to 1.4v and it seems to have stopped it failing (i know ive only tested it 3 times but will give it a big test of 20 when ive made my cooling better as they are in the high 80's!!!

Matt

immortalcloud · 26 Mar 2010 at 22:55

What voltage should i need for 4ghz? Also with your i3 @4.4ghz , what gflops do you shift when running linx?

Matt

immortalcloud · 26 Mar 2010 at 22:58

so 56gflops for me is very good then (suppose its the other 2 cores in mine)

Matt