CPU question

[manchild]

A friend of mine has problem with PC. It is virus and spyware free, HDD is healthy so I suspect CPU overheating because even when system is on idle (no programs but speedfan working) 1.67 Athlon reaches 55 degrees Celsius with its fan reaching only 3400 rpm. I might be wrong but I've never seen a fan that normally rotates below 5000 rpm. My diagnosis would be that fan causes overheating of CPU because it is damaged or choked so it rotates very slow.

Any comments?

[Spyker MF1]

Is it OC'ed? If not get a new fan the Artic Cooler freezer range are meant to be good. Or if it will fit what I have a Gigabyte G-Power cooler pro which is currently running my 2.8ghz P4 at 2100rpm at around the 20 degree mark which is after a lot of use and a fair bit of dust

[RH1300S]

I have solved a problem a little like that by re-seating the CPU with fresh paste. Probably wouldn't hurt to get the fan replaced.

Is the PSU Ok & up to the job? That can make a fan run slow.

[Tom]

It might be the bearing in the fan has gone, those things sometimes go and they annoy the hell out of you when they do because you could never tell.

Best bet is still to get a new fan.

[Venom]

Yes, 55 is quite high. But RPM's seem to be fine.

My PC runs on AMD 64 3200+ with below 3800rpm and the temeperature is 39C (checked 1 min ago). I have 3 PCs in indoors and none go over 4000 (unless the reading is incorrect - i use speed fan). The program also shows voltage... but god knows if it's correct...

RH1300S might be right... try to add a bit of paste that seats between CPU and the heatsink. And ofcourse heatsink should be dust-free.

http://www.almico.com/speedfan.php


btw. my side panel si always open

[Saribro]

its fan reaching only 3400 rpm. I might be wrong but I've never seen a fan that normally rotates below 5000 rpm. My diagnosis would be that fan causes overheating of CPU because it is damaged or choked so it rotates very slow.

Boxed CPUs from that generation generally came with fans in the 3000-3500RPM range, there's nothing really abnormal about the number in itself. Of course, without knowing the speed it ran in the beginning of it's life, it's hard to diagnose.
Secondly, while 55°C is somewhat on the high side, I would not call it concerning. You have to take into account that these were some of the hottest desktop CPUs ever made, with no power-saving technology, in a time where thought-through heatsink design was still in it's early days.
I would suspect a thorough cleaning of heatsink, fan and case (fresh air has to come from somewhere) and maybe a reseating of the heatsink (don't forget to clean the interface and correctly apply new thermal paste) to be sufficient in keeping the CPU in a safe temperature-range.

[manchild]

Thanks guys.

[DaveKillens]

Here are the maximum temperatures for the most popular CPUs.
http://www.heatsink-guide.com/content.p ... temp.shtml
Go by the temperatures, the fan speed just indicates how (in)efficient it is.

Hmm, Venom running a Raptor.. hmm, gotta keep an eye on that one

[Venom]

Hmm, Venom running a Raptor.. hmm, gotta keep an eye on that one

Well spotted. It works well too

[Ray]

btw. my side panel si always open

Are you OCing Venom?

I have a custom danger den water cooling kit installed in my case with only one rad, I have a 10%(roughly) OC on mine. Runs like a scalded dog too!

[Venom]

Are you OCing Venom?

I have a custom danger den water cooling kit installed in my case with only one rad, I have a 10%(roughly) OC on mine. Runs like a scalded dog too!

No, my PC is "naturally aspired"! : )

But I do wish I had watercooling kit installed to "shut-up" those annoying fans

[DaveKillens]

Venom, my system used to sound like an annoying wind tunnel too. I decided to get radical, got an Antec 180 case, an Arctic Cooling X2 for my viedo card, and a Thermaltake Big Typhoon for my CPU. Whisper silent now, and CPU, CPU, and hard drives run around 30 to 35 c.

[manchild]

That's it! I'm building myself water cooling. I'd only like to design it to use mineral oil instead of water so that in case of leak there is no chance of short-circuiting. I wonder how much more mineral oil would it take relative to distilled water? Is there any average ratio based on heat conductivity?

[joseff]

Bah, why bother with circulating the coolant?

http://www.markusleonhardt.de/en/oelrechner.html

[Spyker MF1]

That is cool but they did it on tomshardware and they worked out that it would slowly corrode parts