Solved Desktop roars when first started

September 19, 2011 at 09:26:07
Specs: Windows 7, AMD Phenom(tm) II X4 925 Processor 2.80 GHz 4.00 GB Installed memory (RAM) with 3.75 GB usable
I let my desktop get too dirty inside before cleaning it last week. It's 17 months old. It started getting pretty hot on the top before cleaning. Then after cleaning it worked great for a week. Then on the first day of cold weather I started it and it roared for at least 3 full minutes or more before settling down to a normal sound. Touching the top while it's roaring. it's obvious the roar is not coming from the fan in the back. It's up front just behind the dvd drives. If I shut down and turn it back on within a half hour or so it does not roar. I feel sure it's the cold boot that's doing it. But I don't know if it's serious enough to take it to the shop. And I don't know how to check to see what exactly is causing the roar. Any ideas? Thanks.

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✔ Best Answer
September 19, 2011 at 20:08:24
If there's more than one fan it may be hard to tell which one the noise is coming from. You can use your finger to slow the fan down until it stops. If the noise stops too then that was the one. Don't stick a screwdriver blade or anything like that in to stop it. You might break one of the fan blades.

Once you figure out which one is the problem I'd go ahead and replace it.



#1
September 19, 2011 at 09:42:22
I should add, it's a locally made computer. And Windows pulls up fine while it's roaring. I would like to know if I can fix the roar on my own, but first need to know how to find out what's making it roar.

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#2
September 19, 2011 at 10:08:00
It's up front just behind the dvd drives
CPU fan and PSU fan is loacated behind DVD drives. Next time start the system without side panel.
Install 64bit OS if u want to use all 4gb of ram.

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.


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#3
September 19, 2011 at 10:16:45
Thank you, Kuwese. I'll look into those fans.

I do have 64bit. Could that be the only reason I don't get the full use of the ram? I had this computer made locally and it is supposed to be 64bit. In fact, I've seen evidence of that a few times but don't recall where I saw it.

I appreciate your info. I'll look at it to see if those fans still have something stuck in them. But I don't understand why it wouldn't roar on a warm boot up if it's dust in there. Nor why it settles down to a smooth sound after 3 minutes. I'll keep looking at it. Thanks.


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#4
September 19, 2011 at 10:29:32
Part of the system RAM is being used by the onboard video, therefore it's not all available for Windows. Add a graphics card.

The initial roar of the fans is fairly normal, but I can't explain why there was a change after the cleaning. Check your fan control settings in the BIOS.


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#5
September 19, 2011 at 10:49:51
Thanks, Riider. The roar on startup now is 5 or more times louder than it was last week before this started so it seems like something is going wrong. I'll try cleaning those fans again in the next day or so and see if possibly I left something in there.

My RAM seems to be working fine for me. I'm not sure why it's not using all of it it, but I may add more RAM later or add the graphics card if it starts to give me problems. I did that on my last pc.

Thanks for your help. I'm appropriately humbled at my own laziness in not getting this pc cleaned out more often. I'll do better in the future.


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#6
September 19, 2011 at 20:08:24
✔ Best Answer
If there's more than one fan it may be hard to tell which one the noise is coming from. You can use your finger to slow the fan down until it stops. If the noise stops too then that was the one. Don't stick a screwdriver blade or anything like that in to stop it. You might break one of the fan blades.

Once you figure out which one is the problem I'd go ahead and replace it.


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#7
September 19, 2011 at 20:12:21
DAVEINCAPS, thanks so much for that suggestion. I'd never have entrusted my finger to those fan blades without hearing that it's okay. I'll do that in the morning when it's cold and I turn the pc back on. Super! Great suggestion. That way I can find out if it really IS a fan at all.

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