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Honor Student
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Member Since: ‎10-09-2011
Message 1 of 11 (58,478 Views)
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Error 512 - rear chassis fan not detected

Hi

 

Just unwrapped my birthday present today... a brand new, shiny, HP Pavilion HPE-595uk (yay!).  My husband bought it direct from HP, about 3 weeks ago.  It has been unused until today.  (Happy Birthday me!)

 

However, on first power up, I got a bios message:- "Error 512 - rear chassis fan not detected, Press F1 to continue"

 

I pressed F1 and the startup continued, Windows 7 Installed, all seems ok... I am talking (typing) to you on the PC right now.  However... if I powercycle the PC, I get the error (Error 512 - rear chassis fan not detected, press F1) every time.

 

Does this mean there is a fault with this PC? Should the rear chassis fan be detected?  Has a cable come loose?  Brand new PC remember... just out the box 2 hours ago.

 

 

 

 

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Re: Error 512 - rear chassis fan not detected

Thanks for the inforfmation.  I just started my new computer which had the " Error 512 - rear chassis fan not detected" message.  The connector to the rear fan had a bent pin and the connector was just sitting on it.  Nudging the pin with long nose pliers and a small screw driver fixed it and allowed the connector to be plugged in all the way and all is well.  Be sure to remove the power cord from the back before doing this.  I didn't and the on button was hit while removing the side panel.  Since I have a SDD I didn't hear the computer come on - I was lucky not to short something out!   

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Posts: 9,238
Member Since: ‎07-16-2011
Message 2 of 11 (58,460 Views)

Re: Error 512 - rear chassis fan not detected

Yes, there is a fault. Yes, the rear fan should be detected. Has the cable come loose??? Maybe. According to HP;

 

Error: 512 - Rear Chassis Fan not Detected
Symptom:The Rear chassis fan is not connected or may have malfunctioned.
Actions to resolve: Reseat the rear chassis fan. Reseat fan cable. Replace the rear chassis fan.

 

I would reseat the fan cable/connector to the motherboard and make sure nothing is rubbing the fan causing it to slow down or stop. If that doesn't solve the issue, either the fan or motherboard are bad and you should contact HP for warranty service.

 

Frank

Frank

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Honor Student
Posts: 2
Member Since: ‎10-09-2011
Message 3 of 11 (58,458 Views)

Re: Error 512 - rear chassis fan not detected

So... I have to open this brand new PC and mess about inside?

 

Methinks not.  I shall be calling HP in the morning and they can do that!

 

I kinda expect a £800+ PC to work out of the box!

Student
Posts: 1
Member Since: ‎07-30-2012
Message 4 of 11 (56,135 Views)

Re: Error 512 - rear chassis fan not detected

Also getting the "512 - Rear Chassis fan not detected" error message on my brand new HP Pavilion h8-1287c.  Joy.

Honor Student
Posts: 2
Member Since: ‎09-05-2013
Message 5 of 11 (47,680 Views)

Re: Error 512 - rear chassis fan not detected

Same problem. Brand new computer with the 512 rear chassis fan not detected. How harmful is it to the computer? Can HP troubleshoot over the phone? Really hate to box up and send back. What a pain.

Top Student
Posts: 2
Member Since: ‎12-13-2013
Message 6 of 11 (45,521 Views)

Re: Error 512 - rear chassis fan not detected

Thanks for the inforfmation.  I just started my new computer which had the " Error 512 - rear chassis fan not detected" message.  The connector to the rear fan had a bent pin and the connector was just sitting on it.  Nudging the pin with long nose pliers and a small screw driver fixed it and allowed the connector to be plugged in all the way and all is well.  Be sure to remove the power cord from the back before doing this.  I didn't and the on button was hit while removing the side panel.  Since I have a SDD I didn't hear the computer come on - I was lucky not to short something out!   

Honor Student
Posts: 2
Member Since: ‎03-26-2014
Message 7 of 11 (35,737 Views)

Re: Error 512 - rear chassis fan not detected

 

Just got this error on a brand new Pavilion 500.

Delighted to see there is a known fix for this.

Not so delighted that my brand new system requires surgery on day 1.

 

 

 

Tutor
Posts: 15
Member Since: ‎10-11-2011
Message 8 of 11 (27,107 Views)

Re: Error 512 - rear chassis fan not detected

[ Edited ]

Personally, if it were mine, I wouldn't touch it.  So I hope you told HP to send you another computer.   And if the issue persisted, I hope you asked for a full refund!  Dealing with HP and their 'elite' support staff is not worth the trouble.

 

 

Smiley Sad

Student
Posts: 1
Member Since: ‎11-17-2015
Message 9 of 11 (15,208 Views)

Re: Error 512 - rear chassis fan not detected

[ Edited ]

Go to the BIOS main screen

Press CTR A (release)

Press CTR Q (release)

(Enter hidden menu) Security - System ID

Fill in enter Build ID (BID) (Found on a white sticker at the bottom of the desktop in my case)

Fill in enter feauture Byte (Found on a white sticker at the bottom of the desktop in my case)

Save and exit would solve your problem.

 

Honor Student
Posts: 2
Member Since: ‎09-05-2013
Message 10 of 11 (15,181 Views)

Re: Error 512 - rear chassis fan not detected

We had the same error message, right out of the box. It ended up being a bad motherboard. The second motherboard went out less than a year after the first one one was replaced. I would recommend returning it and ask for a full refund or brand new replacement. It took 3 months to have a working computer. HP doesn't have a very long warranty, 90 days I believe. We had to pay for the second motherboard. The computer runs great otherwise. Just hope we don't have to keep replacing the motherboard every year.
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