Solved: Cpu Fan Failed!

[lee85boro]

my sister has a Compaq presairo
celeron d 330
80g hdd
512 ddr
-------------------------------
"all of a sudden" she was getting this error msg saying
"CPU fan failed, pc will automatically power down in a few seconds, service pc immediately to prevent CPU damage."
i have done a lot of building and ect for friends and family so i guessed straight away that it could be 1 of 2 things, faulty fan "duh" or faulty mobo so i changed the fan and still same msg, i have tried 2 different fans and just to be on the safe side a similar power supply out of my own machine.
i was wondering if i could wing this some how by powering the cpu fan a different way and overriding it in the bios.

thanks, lee

 

[lee85boro]

if u need more computer specs please let me know

 

[telegramsam]

Are the fans actually working when you get that message?

 

[lee85boro]

no the CPU fan dont work at all - like i said i think this is something that just has to be winged, but how hmm

 

[telegramsam]

See if there's a jack labled sysfan on the board.

 

[lee85boro]

just CPU_FAN1 and REAR_FAN1 - no other fan jacks

 

[bigbear]

The system is not going to be very stable without the heatsink working correctly.
Try blowing the dust of with a can of air duster, if that does not work I would replace the heatsink.
Not sure why you want to "wing" it though?

 

[lee85boro]

did you read my first post on this topic or did you just "wing" it and read the title heh
no fan works on the 3 pin connection which suggests mobo problems which she cant afford so im trying to do the next best thing.

 

[telegramsam]

well, the rear fan is a steady speed fan, no throttling. Don't know if it's RPM voltage is sufficient for that processor. There may already be a fan connected there, and if it's there in a branded system, it needs to be there. I've run OLD machines with the CPU fan plugged into different jacks, but....

Did I understand correctly that a known good fan didn't work plugged into the same jack? If so, you've got yourself a bad motherboard. Winging it, as bigbear said, is not advisable.

 

[bigbear]

did you read my first post on this topic or did you just "wing" it and read the title heh
no fan works on the 3 pin connection which suggests mobo problems which she cant afford so im trying to do the next best thing.

Yea sorry getting late over here maybe its time for bed

 

[lee85boro]

lol i was tired on the night myself... i know winging it is not advisable due to overheating problems and doing further damage to components but i'm willing to take that risk if anything should go wrong i promise i wont hold it against you.
so theoretically speaking... (cough) does the rear fan have enough RPM to keep the processor at a stable if not urm wingable temperature lol?

 

[telegramsam]

Probably. Hook it up and see if your BIOS has hardware monitoring. See what the temps are. Intel's will shut down if they get too hot. (Well, I guess you already know that!)

The question is: will the system run with the fan NOT connected to the CPU fan jack? Don't know the answer to that. Hook it up and give it a try.

 

[lee85boro]

sounds like the plan is coming together, be back in 10

 

[lee85boro]

CPU Fan Speed 0 RPM (duh)
System Fan Speed 2109 RPM (Which the CPU fan is connected

CPU Temp 43*C/109*F
System Temp 23*C/75*F
---------------------------------------------------------
anyone know if this is stable?
haven't tried to disable the fan warning yet

 

[lee85boro]

I dont think i can bypass this in the bios the system will not run with the CPU fan using the rear fan 3 pin connector.
i wonder if i could bypass this using jumpers on the mobo some how :S i think this is starting to get a little bit sticky, looks like its time for a new mobo. still not all hope is lost. more help needed, still dont know if the speed and temperature is stable???