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Evo D510 Chassis fan not detected
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Author Subject: Evo D510 Chassis fan not detected      Add to my favorites
ManShanks
Jan 29, 2007 11:44:45 GMT   
The fan on my d510 went bad, and after dealing with HP tech support who wanted $60 for a new fan that they didn't have in stock I bought a standard 3-wire fan for $12.

After installing the fan I still get the "512-chassis fan not detected" error on boot. I tried resetting the CMOS but I still get the error. Is there something wrong with this new fan or does HP use proprietary equipment in their machines? And if it is proprietary how do I fool the motherboard into thinking I have an HP fan in there?
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Eino V ???en.forums.text.=beamingAlt???
Jan 29, 2007 11:52:22 GMT    Unassigned
Hi

Probably the fan has wrong resistance. Look what reads on the old fans label, what is the mA reading. Try to buy a fan most near it.

Eino
Rich S This member has accumulated 20000 or more points
Jan 29, 2007 16:10:11 GMT    Unassigned
a 100 ohm resister across the leads will fool the MOB into thinking there is a fan hooked up.


Rich


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Rich S This member has accumulated 20000 or more points
Jan 29, 2007 16:15:42 GMT    Unassigned
a 100 ohm resister across the leads will fool the MOB into thinking there is a fan hooked up.

Use an OHM meter to read the resistance on the old fan to be sure.

But 100 ohms is what is used on most PC's to fool the bios.

Rich


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ManShanks
Feb 6, 2007 09:46:06 GMT    N/A: Question Author
After looking at another d510 I found the factory fan had the V+ and what I thought was the RPM sensor wire shorted at the connector.

So I shorted the two wires on my off the shelf fan and now it works perfectly.
Rich S This member has accumulated 20000 or more points
Feb 6, 2007 19:37:53 GMT    Unassigned
You should have the 100 ohm resistor on it.

It keeps a tiny load on the circuit instead of a zero load short.


Rich
 
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