PC Error message: Chassis fan Failure!

pb18

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Hi Guys

I have an old system where the Motherboard had failed and would no longer display, i replaced the motherboard with this one: HP NR146 SP#351067-001 Socket 478 Motherboard: http://www.ebay.co.uk/itm/250775817842?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_2076wt_1271, however now when i power up the system i keep on getting the error message: chassis fan failure & the computer beeps & then automatically shuts itself down.

Also I can not seem to access the BIOS no matter what key I press, BIOS is American Megatrends.

PC specs:

intel P4 HT 2.60GHz & Coolermaster 478 CPU Cooler
PSU: ColorsIT 400W PSU Model (400U)
2GB DDR1 RAM (512MB x 4)
360GB storage (320GB IDE & 40GB IDE)
Case: Atrix A-9001


please could someone help me with issue, any answers/opinions would be greatly appreciated
 

pb18

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@silverliquicity

Hi I tried that before & it didn't seem to work :S
 

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@ Alvine

All the case fans are plugged into the motherboard as they are 3 pin fan's, although this mobo has one CPU fan Header & one 3pin Fan header (2x120mm fans plugged into that header using an adapter)
 

pb18

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@hairystuff

just tried unplugging the adapter now and plugged the fan in without the adapter, however it seems I still get the same error message wether the adapter is plugged in or not, really confused
 

davidgermain

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I would just disable the chassis fan in the bios. And still plug the two wire fan in to the connector. all you loose is the speed control.
or disable the fan in BIOS and leave the fan un-plugged - this will reduce the noise of the fans and reduce the power needed by the system.

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00067496/c00067496.pdf
Page 9 of the PDF - if you cannot disable it then i would grap a cheap three pin fan off ebay.

Unless you are having heat issues with your case, in this situation find out what is causing the high temp. And arrange your cables and parts in a way that encourages good air circulation. eg. space your hard drives out.
You don't need lots of Fan's in a case, most things that need forced air cooling will have fans already all you need to do is make sure that each fan has access to good cool clean air flow.

 

pb18

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@hairystuff

yes the 120mm chassis fans come are 3pin and have wires which are (red, yellow & black), also the CPU Fan which I have has is a socket 478 cooler with 3 wires which are: Red, Black & Blue, Also i tried plugging my 120mm fan into the CPU socket as that fan uses a 3 pin connection (same as CPU fan) which the wires in color are: black, red & yellow, would this make a difference?
 

pb18

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@davidgermain

for some strange reason I am not able to access the BIOS so therefore I cannot disable the fan.

also I cant think of anything that would be causing heat issues as I did cable management before hand for good airflow & also installed 2x120mm fans which have access to clean air (1x front, 1x rear) also hard drives are spaced out properly
 

hairystuff

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The colours shouldn't make a difference as the pin arrangements are the same, but the chasis fans are usually the 80mm type on hp pc which run at a higher RPM than the 120mm, I used a 50mm fans from a PII cpu on the chasis fan connector to fool the motherboard into thinking it had the correct fan installed on a HP ML330 board.
 

pb18

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@hairystuff

thanks for that info, I have just tried connecting my 80mm arctic F8 pro fan from my other computer and that seems to work as I can now access the BIOS and the Chasis Fan error has gone from my System so it looks like this motherboard will only support up to 80mm fans because of the higher rpm like you mentioned, so I will now need to buy a 3pin 80mm Fan to connect to that motherboard

thanks :)
 

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