Switched CPU of Dell Optiplex GX520 --> BIOS says CPU is incompatible

[h3r3t1k]

Hello,

this is the mainboard that's supposed to be in the machine: http://www.redplanettrading.com/Dell-RJ290-UG982-XG312-X7841-PJ479-MD573-Opitplex-GX520-Desktop-Motherboard.html

And this is the CPU I got for it: http://www.ebay.de/itm/400309846027?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648

The other CPU was a Celeron. The way I see it, the combo should work. Any ideas?

 

[bucknutty]

I dont like the pads for the cpu. They are good for ram on video cards and small stuff.

Only a few dells I have take apart had them. If your dell had/has one it really should not be reused, and it can't be mixed with thermal paste.

My point is if you have the thin plastic like pad and thermal paste you wont get good heat transfer.

 

[h3r3t1k]

Removed and reapplied paste. Now fan is out of control. Blowing at full throttle no end in sight.

 

[jay_nar2012]

Check your temps...
With this- http://www.alcpu.com/CoreTemp/

 

[jay_nar2012]

For Verbalizer, http://www.youtube.com/watch?v=I3gx6c62D7I

 

[panwala95]

dude that is a socket 541 cpu
obviously it wont work on a lga 775 mobo

 

[jay_nar2012]

dude that is a socket 541 cpu
obviously it wont work on a lga 775 mobo

Bit late, now he is having heat problems....
And it is LGA775, don't know where you got that from- http://ark.intel.com/products/27468/Intel-Pentium-4-Processor-541-supporting-HT-Technology-(1M-Cache-3_20-GHz-800-MHz-FSB)

 

[h3r3t1k]

From Dell support forum: http://en.community.dell.com/support-forums/desktop/f/3514/t/19459830.aspx

He says it's because of the BIOS update. Suggests booting to safe mode and checking fan speeds there. I'm on Linux and reading the sensors doesn't work right now. So I guess I'll wait and see what the Ubuntu people suggest.

 

[jay_nar2012]

http://www.lucidtips.com/2009/06/06/monitor-cpu-and-hard-drive-temperatures-on-ubuntu-linux/

 

[jay_nar2012]

I,ve just noticed something, Panwala got mixed up with the model number....

 

[jay_nar2012]

thanx for the video link, I hope it was informative to the thread, i haven't seen it yet..

A bit off topic, but you were Urban Legend before right, just remember you avatar..

 

[h3r3t1k]

Just wanna mention that I put the Celeron back in and the fan is quiet again. I got no idea why it wouldn't work with the P4. I tried to get a read on the sensors including the one controlling the fan but I couldn't find any. I also tried getting a new heatsink since I heard that Dell had an updated version but I can't get any of those. So I guess I'll leave it like that. Thanks for everyone's input!

 

[InvalidError]

Just wanna mention that I put the Celeron back in and the fan is quiet again. I got no idea why it wouldn't work with the P4.

The P4 likely has a much higher TDP than your Celeron, hence much lower tolerance to sub-par HSF and HSF mounting job.

 

[h3r3t1k]

Best answer selected by h3r3t1k.