Dell Optiplex 330 MT fan is too noisy.

LaZerSL

Honorable
Aug 24, 2013
11
0
10,510
Hello,

I recently upgraded CPU and RAM on my optiplex 330 mt from Dual Core E2160 CPU to Core 2 Duo E8400 CPU. RAM ungraded from 1 GB to 3 GB. Now CPU fan is too noisy. I didn't upgraded my bios to newer version because current version A03 detected the new processor, is it the problem that cpu fan is too noisy ? Also sometimes pc is restarting. I checked the temps using Speedfan, it was

HD0: 48C \ Core 0 : 36C \ Core 1: 42C

I tried to reduce fan speed using speedfan but the software doing nothing! a person told me to replace the CPU fan and heatsink. So I brought CPU fan with heatsink that compatible with Core 2 duo processors. Tried to insert it but power plugs are different. fan power plug is bigger than the fan connecting port on motherboard, can't connect it.

Here is the fan connector on motherboard. http://goo.gl/szFh5l

Here is the new fan I tried to connect. http://goo.gl/WXbMsN

Can anyone help me to solve this issue ?

Thanks in advance.
 

LaZerSL

Honorable
Aug 24, 2013
11
0
10,510
I used cheap thermal paste. I will buy a better one. I'm using stock fan, I can't replace it with a better fan the fan I have not matched with motherboard fan connector port. How do I connect it ? Thanks for response.
 

LaZerSL

Honorable
Aug 24, 2013
11
0
10,510


Thanks. the cpu fan header in mother board is too thick than the new fan power plug. please see this pictures.

Here is the fan connector on motherboard. http://goo.gl/szFh5l
Here is the new fan I tried to connect. http://goo.gl/WXbMsN

you will see the port is too thick.

How do I connect this custom fan ? Thanks again for replying me.
 

NurbekKG

Reputable
Jan 6, 2015
1
0
4,510
I did solve such a problem in one of Optiplex PCs by downgrading BIOS version. For some reason with newest BIOS CPU fan was very noisy. Attempt to use utilitiy to control fan speed was not successful. Tried to change BIOS to older version and fan got quiet immediately.