Well the story goes like this, over the past month my siblings PC has gradually been getting louder and louder, I finally decided to do something yesterday, I was done with being able to hear it from the next room while it was running simple tasks like netflix. For fun before I took on this project I ran Prime95, the cpu cooler got so loud it could be heard 30 feet away and around a corner without having to try to listen to it.
So I took off the side panel and yea dust, lots of dust, so I said "screw it I have a whole evening with nothing to do, let's rebuild this PC and clean every nook and crany"
Dust
Also noticed that whoever put on thermal paste previously used to much.
All the parts nice and clean with the Spec's
Ran it before I put it all back in the case.
Finishing up and Cable Management
Before and After
Sadly the PC is too old to have a temperature sensor on the cpu, so I can only judge temps by soud.
The big surprise was when I powered it up on the test bench, when the cpu was idling with no case to block the noise, the power supplies tiny amount of coil whine was louder then the CPU cooler, and the thing is a 130 Watt cpu with a stock cooler, it just blew me away.
Hopefully after this much needed rebuild, this old Pentium D will last much longer for my 5 younger siblings, who use it daily for playing games, doing homework and watching Netflix.