Solved: T42: Fan Error. No voltage from motherboard socket

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Solved: T42: Fan Error. No voltage from motherboard socket

#1 Post by next » Fri Jan 20, 2012 2:12 pm

The old fan in my T42 suddenly stopped spinning. I tried installing a new one, but it also didn't spin, so I checked the socket on the motherboard. It should measure ~5 volts at startup, but it looks like it isn't outputting any volts whatsoever.

Update: I just solved the problem. It's a blown fuse, specifically the F4 fuse. :roll:

http://www.theboardroom.info/T4x_Fuses.pdf
2 x T42: 1.8 GHz / 64MB ATI Mobility Radeon 9600 / 250GB 7200 rpm / 14.1" SXGA+

anystupidname
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Re: Solved: T42: Fan Error. No voltage from motherboard socket

#2 Post by anystupidname » Wed Feb 13, 2013 4:22 am

My fan won't spin intermittently, which leads me to believe it isn't a fuse. Is there a temperature sensor that can go bad or a relay that could work intermittently? I've tried replacing the fan. More often than not, it won't boot with fan error now. I take it these fuses must be unsolder-ed and soldered back on?

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Re: Solved: T42: Fan Error. No voltage from motherboard socket

#3 Post by RealBlackStuff » Wed Feb 13, 2013 10:12 am

Replacement fuses can be soldered piggyback-style on top of the old one.
Next time you need a fan (or other part), don't try Malaysia but our Market forum.
At least you will get a properly working fan from a trusted seller.
Lovely day for a Guinness! (The Real Black Stuff)

Check out The Boardroom for Parts, Mods and Other Services.

anystupidname
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Re: Solved: T42: Fan Error. No voltage from motherboard socket

#4 Post by anystupidname » Wed Mar 13, 2013 4:53 am

RealBlackStuff wrote:Replacement fuses can be soldered piggyback-style on top of the old one.
Next time you need a fan (or other part), don't try Malaysia but our Market forum.
At least you will get a properly working fan from a trusted seller.
I've ordered from another Amazon reseller :/
The first did end up refunding me although he wanted me to pay shipping to return the dead fan, which I refused to do.
The new fan is a lot spiffier lookin' and works well and silently.

larryb
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Location: MADISON, WI

Re: Solved: T42: Fan Error. No voltage from motherboard socket

#5 Post by larryb » Fri Jun 28, 2013 7:50 pm

Had a older T-23 with a fan issue. No +5v on the fan input. I ran a small wire from another good +5v source on the MB and soldered to to the fan input. The fan runs all the time but who cares... :D

Larry

rioz
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Joined: Mon Apr 25, 2016 10:44 am
Location: Hong Kong

Re: Solved: T42: Fan Error. No voltage from motherboard socket

#6 Post by rioz » Mon Apr 25, 2016 10:50 am

I have the same issue. May I know where you get another good +5v source on MB?

rioz :roll:

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