a quiet PWM Fan which is 80mm and this spec

[WayneHarris]

hi again

okay, well i received my Shuriken CPU Cooler for my 775 Socket and guess what? it wont fit
the reason WHY is that COMPAQ who make my PC have decided to place a metal plate underneath the motherboard, hence the reason why the Shuriken would NOT fit
so, i took the motherboard out, i cant believe i did that!! but thankfully im quite proud of myself as when i put it all back together, it worked!!
despite removing the motherboard out and wasting 3 hours last night, the metal plate wouldnt come off, it was stuck fast, and i mean fast!
tried everything to remove it and it wouldnt budge

so, im stuck with the crappy noisy CPU Cooler of mine until i can find one that fits (using normal screws that fit into original holes of my motherboard)
i rang up Quiet PC Company and Paul advised me that YES i could simply replace the CPU fan, which should quieten my machine down considerably, but i would have to find one with similar specs with same fan speed and air flow rating.... guess what? i cant find one anywhere!
thanks COMPAQ !!! what an un user friendly machine!!
here are the specs of my current noisy fan, see if you can find a PWM Fan with these specs, Paul said i could damage my CPU itself IF i run something that doesnt match my existing one....
eBay.com.my: AVC DA09025T12U 90/80mm x25mm PWM LGA775 Round CPU Fan (item 370132189464 end time Feb 16, 2009 01:22:50 MYT)


i give up

trouble is i cant afford a new computer, and i have no idea what motherboard to buy and if i did one, how the hell do i set up or install a BIOS
this whole malarky is becoming more and more complicated each day!

[Oli]

If you have enough room concerning height above the mainboard (= space between mainboard and case side panel) you could use a 120mm fan and use an 120 to 80 mm adapter to install it to the heatsink. The advantage of the 120mm is that you can run it with less rpm = less noise because the 120 mm can move the same amount of air with less rotation speed.

You could use Scythe Kama PWM as the fan (it will be regulated by the mainboard) and an adapter of this kind:
Thermaltake UV Blue 80 to 120 Fan adapter with Screws A2380

Important: The above proposal asumes that Compaq didn't modify the BIOS of the Asus board so the PWM fan regulation was adapted exaclty to the fan delivered with the system. If this is the case you'll have to drop PWM regulation and work with fixed rpm.

You could also use a 80 mm fan but I am very sure that'll never get as quiet as it could with a 120mm fan. For your 80mm fan you'll need much more rpm to cool down your rather hot Intel P4 processor.

Gaining real advantages in noise level while staying with 80 mm will be problematic with your P4 I'm afraid.

In 80 mm I found these:
Arctic Cooling AF8025 PWM, 80x80x25mm, 600-2000rpm, 46m³/h, 10-21dB(A)
Arctic Cooling Arctic Fan 8 PWM, 80x80x38mm, 600-2000rpm, 48m³/h, 9-20dB(A)
Enermax Twister Cluster 80x80x25mm, 500-2000rpm, 19.23-55.05m³/h, 8-19dB(A) (UCCL8)


I know, i know - everything is rather complicated...