Has anyone ever heard of....

[Pinky]

Has anyone ever heard of a HSF putting too much pressure on a CPU?

When I first got my 1 GHZ chip, the new clip-design stock hsf would cause my PC not to POST. When I trimmed back some of the clip, so less pressure was applied, I got it to boot. I then encountered problems with a loose video card, which I'm wondering was contributing. Heat is also an issue as the cpu isn't making the best of contact with the heatsink now (but it's good enough, otherwise I wouldn't be using it).

I ask because I ordered a new Pal hsf and need to know if this is a know problem and is there a fix?

[Kingslayer]

At this day and age anything is possible. The only thing that I can figure is that it was actually warping the PCB and pulling connections, I'm suprised it worked after that at all.

[William]

I have never heard of this at all. In fact, I can't think of why this would cause a problem. I'm confused.

[Lancelot]

She did not boot at all at first with the default clip? Maybe it was just your AGP sitting loose all the time that just made enough contact again after you reseated your HSF cuz you bumped against it. If you warped your socket or mobo it would've caused tiny cracks in the PCB-conductors/solderings/contacts and you'd be bound for crashes/lockups/spontaneous reboots etc. And since that hasn't happened I don't think it had anything to do with the CPU and/or HSF.

[downunder]

Yep, the HSF could be too tight a fit & cause it's base to bend. Thus CPU contact could be poor.

I did alot of mucking around with my PEP66 cooler & cured my CPU of this same problem. It was making the HSF Skew off.

I replace the HSF on my Video card and also had a similar problem. The Mount screws had to be torqued just right or the HSF base would bend. You could see daylight between the surfaces (with the goop removed).

So in short, yes it is a problem, but once biten, you'll be forwarned.

[Pinky]

Thanks, an overclocking buddie of mine had heard of this happening once. I had to check back here to be sure.

[Pinky]

Lancelot (Jul 15, 2001 02:51 a.m.):
She did not boot at all at first with the default clip? Maybe it was just your AGP sitting loose all the time that just made enough contact again after you reseated your HSF cuz you bumped against it. If you warped your socket or mobo it would've caused tiny cracks in the PCB-conductors/solderings/contacts and you'd be bound for crashes/lockups/spontaneous reboots etc. And since that hasn't happened I don't think it had anything to do with the CPU and/or HSF.

I agree -- once the AGP card was wiggled I haven't had a problem since. I will know once the Pal arrives, with its weight, for sure whether this is an issue.

[KILLorBE]

Maybe that's why the PEP66 Installation guide tells you to apply the 4 pads, but when you use the PEP66 on a AMD you shouldn't use the pads???.
When I first read it I was confused, cuz AMD's are known for their weak core. But now I've read your story it might make sense. does it ?
Maybe I'll just remove the pads and see what happens.

[FrankMasterFlash]

KILLorBE (Jul 15, 2001 07:05 p.m.):
Maybe that's why the PEP66 Installation guide tells you to apply the 4 pads, but when you use the PEP66 on a AMD you shouldn't use the pads???.
When I first read it I was confused, cuz AMD's are known for their weak core. But now I've read your story it might make sense. does it ?
Maybe I'll just remove the pads and see what happens.

Yes...remove the pads. 4 pads=good 8 pads=bad. Over at Hard OCP they destroyed 1 cpu by having 8 pads. Look over there and see what they did.