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Very loud CPU fan

by beast_3 / March 30, 2007 10:28 AM PDT

The fan on my Compag Presario SR1620NX is acting like it's on steroids, racing up to top speed when ever there's ANY load on the CPU.
For the first six months or so it ran normally, then this racing business started. It's gone bck to HP/Compaq 3 times but they keep saying its OK, just replaced the fan/heatsink and restored Windows XP.
ow that warranty has expired they don't want to talk about it.
I've upgraded the power supply from a 275 watt to 475 watts and added a case fan, but it isn't making any difference.

Anyone had any similar experiences? Any solutions?

I think it's probably either a bad CPU (AMD Semperion 2800) or a bad temp sensor on the motherboard (MS-7184).

Anyone know of a test utility that can nail down the problem?
Thanks!
Bob

Compaq SR1620NX
Hardware
Base processor
Sempron 3400+ 2.0 GHz:
1600 MT/s (Mega Transfers/second)
Socket 939
Chipset
ATI Radeon XPress 200
Motherboard Manufacturer: MSI
Motherboard Name: MS-7184
HP/Compaq motherboard name: AmethystM-GL6E
Memory
Memory Installed 512 MB (2 x 256)
Speed supported PC3200 MB/sec
Type 184 pin, DDR SDRAM
DIMM slots Four


Hard drive
160 GB
7200 rpm
16x DVD(+/-)R/RW DL drive

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What you added simply increased the internal
by Ray Harinec / March 30, 2007 11:09 AM PDT
In reply to: Very loud CPU fan

temp of the system, that will ensure that the fan would never slow down.

If the system works, the last thing that this writer would suspect is the CPU. The small cases of the HP's etc simply make adequate cooling difficult.

Possibly your systems cooling paths and fans are clogged with dudt bunnies. Get inside it and clean it out.

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Hopefully the extra capability of the Power Supply
by Ray Harinec / March 30, 2007 11:17 AM PDT

if not needed by the system will only slightly increase the power supply heat and most of that should go out via the rear fan.

Are you certain that the added fan is forcing air in a direction that assists the natural flow and is not opposing it?

I have been assuming that you were talking about the CPU's HSF.

You could kludge the fan wiring to run the 5 volt pin on one of the Molex's but then expect to lose the CPU for real.

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re: Hopefully the extra capability of the Power Supply
by beast_3 / March 31, 2007 5:03 AM PDT

Yes, its the heat sink fan that's causing the noise. I added a case fan to suck air out of the back of the case and there's a separate fan in the power supply.
I'm considering adding an aftermarket CPU heatsink/cooler unit and probably another case fan in the front, if there are enough power connectors.

Collapse -
Tell us about how carefully you cleaned off the old
by Ray Harinec / March 30, 2007 11:10 AM PDT
In reply to: Very loud CPU fan

thermal paste and installed the new.

Collapse -
thermal paste
by beast_3 / March 31, 2007 4:57 AM PDT

I didn't personally replace the fan & heatsink, HP service techs did it on the last attempt to cure my problem.
Could deteroriating thermal paste lead to this?

I have been thinking of adding a larger aftermarket heatsink/cooler and larger fan set up.

I'll pull the CPU & check out how well it fits the heatsink tonight. Thanks for the idea!
Bob

Collapse -
Be aware that IT IS
by Ray Harinec / March 31, 2007 5:11 AM PDT
In reply to: thermal paste

possible that the temp controller chip on the mobo has failed. Then all of the other actions would be a waste of money.

I don't know what case size you have, but wonder if there really is a way to adequately cool things. They don't bother to mention that may be the reason that they "Can't Find any problem". They know d----d well they can have cooling problems. [10 pounds in a five pound bag].

If it werwen't for their proprietary Op Sys, I'd say buy a decent case for 50 to 60 at newegg and move the hardware into it.

I always buy the Aspire's with the top exhaust fan, if side cone replace it with a fan blowing in towards the CPU..

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