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Honor Student
Nettle-GL8E
Posts: 2
Member Since: ‎02-21-2014
Message 1 of 4 (201 Views)

New CPU fan - CPU-FAN has failed

Hello,

 

My new CPU-fan doesn't work, because system reports while starting that "CPU-FAN has failed, system will shut down"

 

 

I'm wondering if there would be BIOS-version that could show hardware monitor, that I could disable cpu-fan warning.

 

mobo Nettle-GL8E, MCP61PM-HM

 

http://h10025.www1.hp.com/ewfrf/wc/document?cc=fi&lc=fi&dlc=fi&docname=c00906137#N451

 

 

Associate Dean
wb2001
Posts: 5,111
Member Since: ‎09-28-2010
Message 2 of 4 (155 Views)

Re: New CPU fan - CPU-FAN has failed

Does the new fan meet the minimum requirements of the old fan? Same pinout and RPM?

Installing a low RPM fan will cause that message. The 3rd wire is the RPM tachometer lead.

To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved.
You can render both Solution and KUDO

The Law of Effect states that positive reinforcement increases the probability of a behavior being repeated. (B.F.Skinner). You toss me points, and I perform better.

(2) HP DV7t i7 3160QM 2.3Ghz 8GB
HP m9200t CTO,Win7 Pro 32 bit. 4GB RAM, ASUS 550Ti 2GB, Rosewill 630W. 1T HD SATA 3Gb/s
Custom Asus P8P67, I7-2600k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX660 2GB, 750W Corsair, 1T HD SATA 6Gb/s
Custom Asus P8Z77, I7-3770k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX670 2GB, 750W Corsair, 1T HD SATA 6Gb/s
Both Customs use Rosewill Blackhawk case.
Printer -- HP OfficeJet Pro 8600 Plus
Honor Student
Nettle-GL8E
Posts: 2
Member Since: ‎02-21-2014
Message 3 of 4 (122 Views)

Re: New CPU fan - CPU-FAN has failed

Thank you. Yes the new fan has lower rpm fan than old one, its zalmans quite fan.

 

Can I just cut off that 3rd wire?

 

Or is there bios I could disable that fan check?

Associate Dean
wb2001
Posts: 5,111
Member Since: ‎09-28-2010
Message 4 of 4 (112 Views)

Re: New CPU fan - CPU-FAN has failed

Quiet fans do not rotate (RPM) fast enough. Been there, and it failed. No, you can not defeat the tachometer pin.

You need to purchase the correct fan, rated for the RPM range.

To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved.
You can render both Solution and KUDO

The Law of Effect states that positive reinforcement increases the probability of a behavior being repeated. (B.F.Skinner). You toss me points, and I perform better.

(2) HP DV7t i7 3160QM 2.3Ghz 8GB
HP m9200t CTO,Win7 Pro 32 bit. 4GB RAM, ASUS 550Ti 2GB, Rosewill 630W. 1T HD SATA 3Gb/s
Custom Asus P8P67, I7-2600k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX660 2GB, 750W Corsair, 1T HD SATA 6Gb/s
Custom Asus P8Z77, I7-3770k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX670 2GB, 750W Corsair, 1T HD SATA 6Gb/s
Both Customs use Rosewill Blackhawk case.
Printer -- HP OfficeJet Pro 8600 Plus
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