Front chassis fan replacement

[Stanka1]

Spoiler

Intel Core 2 Duo E8400 3.00 GHz

4.0 GB RAM

HP 3031h 

HP 786G1 v01.26

SAMSUNG HD320KJ 320.0 GB

hp CDDVDW SH-216DB

Windows 7 Professional 64-bit SP1

Intel Q45 Express

I prepairing to replace front chassis fan in my computer HP Compaq dc7900 Small Form Factor. What happens when I start the computer with a new fan? I adding the models of the fans that can better identify the post.

Fan #1: Foxconn PV902512PSPF

Fan #2 (new): Foxconn PVA092G12H

[BeemerBiker]

Both of those are 4 pin fans so should work find.  Since there can be differences you might want to adjust the speed to be about the same.  This assumes there is a fan speed and adjustment options in the bios.

Take the opportunity to blow as much dust out of the system as possible.

[NonSequitur777]

@Stanka1,

Looking at the specs of both cooling fans, you should be fine.  Just make sure your MOBO's fan speed control works: when your processor is running hot, the fan should be spinning up.

Kind Regards,

NonSequitur777

[Stanka1]

But the fan #2 is a fan from HP Compaq 8300 Elite CMT PC. What happens when I plug the fan into my computer? The connector colors on the fans are not same.

Fan #1: light brown

Fan #2: dark brown

[BeemerBiker]

The only color that could be possibly be important are the "wire" colors.  Note that the pin values  of ground, +5, sense and control are all identical positions which is all that counts.

https://allpinouts.org/pinouts/connectors/motherboards/motherboard-cpu-4-pin-fan/

The fan should work fine.  Just make sure it spins the correct direction and is not mounted backwards.  I have done that and even worse.