Upgraded cpu, now case-fan is running wild.

[Anonymous]

Hi all!

I've upgraded my p4 1,6 to a p4 2,6 on my Dell Dimension 4300 with no probs. System is running great. But suddently my cpu-fan is running much harder than it used to, and its really noisy, and thats with no strain put on the cpu. The fan is brand new. and temperature controlled (Vantec).

I vaguely remember a thread discussing this topic, but i've been searching for it for hours now with no luck finding it, so im gonna ask here instead:

Could it possibly be, that the original thermal pad is run down and I need to replace it with Arctic Silver, or will this not help the fan speed at all? Should I just expect more heat developing with the faster cpu and thus producing more noise?

Hope someone can help. Cheers!

Eric_

[metallicat666]

the thremal pads are crap to begin with. you should have used artic silver.
it is very likely that the processor is creating more heat than the older one

[Anonymous]

Yeah, I know they're crap, but hey, convenient, since it was already there.
So you don't think theres any connection between the possibly bad pad and the fan speed?

I'm not quite sure if I get the logics of cpu heat development. Will a bad pad make the cpu develop more heat?

[metallicat666]

it wont make it develop more heat but itll stop the heat from being removed as quickly. which will increase the temp of the cpu

[amd_man2005]

Put some Arctic Silver 5 on that thing and see where that gets you. If that doesn't help things, the new CPU has too much heat for the cooler and I recommend you getting a new cooler.

[insane_machine]

If you have a Vantec Thermoflow that might be the problem mines running at max on my 1.8Ghz overclocked at 2.4GHz. The temps are ussually under 40C without any thermal compound. The temps might be explained by my HS: TR SP-94. Maybe it's time for a new fan.
Hope this helps :D

[bigjackusa]

Dell puts a lot of time and effort into designing system cooling, not to give you a wide safety margin, but to do the most with the least. Have you monitored your ambient/case temp? It is quite possible that the new, hotter cpu is exceeding the the case's ability to remove the heat. I'm not familiar with that case design, but it may be possible to add fans to move more air in and out of the case. And yes, a good thermal compound (like Artic Silver) will drop cpu temps when properly applied.

[Eric_Streame]

Thanks for your replies.

Yes, it's the Thermoflow. 92 mmx25 mm. I guess it's running max too. Unfortunately theres no way of measuring temp with the original Dell mobo. But it must be getting hot in there, since it's running max speed. I'll try the Arctic Silver and see if that helps.

Eric_

[insane_machine]

I have 92x92x25 mm and it's not supposed to run at max. On the back of the box is a little graph that shows temp/speed ration and it is not high enough to run at max. I will be buying new fans. These seem preety good:
http://www.newegg.com/app/ViewProduc...999-051&depa=1

[Anonymous]

Okay. I've read a couple af good reviews of the Thermoflow before I bought it, though. But as I said before, I cant measure the temp inside the case, so i'm not sure if it's broken. I think the problem is something else.

Eric_

[wayout44]

Dell's cases are designed with just enough airflow to accommodate what is installed in them (and sometimes not) and the world's greatest HSF's won't do any good if they can't get enough fresh cool air to operate properly.

[insane_machine]

Guess my fan isn't broken, try to switch the fan around. tried it and now still semi loud but doesn't compare. lower temps too. it was sucking hot air from heatsink and thinking it was overheating but I guess not now blowing air on heatsink. So make your fan is blowing air on the HS.