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Old 01-02-2012, 01:20 AM   #1
apostar
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Default Asus p5kpl-am epu

When I push the power button the board powered up but no display, POST or even beep. It has the so called "solid capacitor" but underneath the processor's heatsink was very hot and I could see the brownish discoloration of the PCB. Is the "solid capacitor" prone to badcap or an exemption?
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Old 01-02-2012, 01:39 AM   #2
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Default Re: Asus p5kpl-am epu

The solid capacitors aren't prone to failure and are not the cause of your problem. It sounds like a partially shorted VRM may be the cause fo the problem. Since its an ASUS board, it wouldn't surprise me at all.
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Old 01-02-2012, 01:56 AM   #3
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Default Re: Asus p5kpl-am epu

This model commonly has failed NIKOS MOSFETS near the coin-cell battery.
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Old 01-03-2012, 11:55 PM   #4
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Default Re: Asus p5kpl-am epu

Thanks c_hegge & mockingbird for the info. I will test the component involved and replaced it. Thanks
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Old 01-04-2012, 01:11 PM   #5
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Default Re: Asus p5kpl-am epu

ME too have the same problem with the same motherboard. Do you know what replacements should i use for those mosfets?
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Old 01-04-2012, 01:55 PM   #6
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Default Re: Asus p5kpl-am epu

Not without a part number.
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Old 01-04-2012, 03:27 PM   #7
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Default Re: Asus p5kpl-am epu

You will need either a really hot iron with a flat-tipped bit or a reflow gun with a really narrow nozzle to take the old MOSFET off. This is the only time when my 30W iron is not able to do the job. Like PCBONEZ says, post the part number.
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Old 01-04-2012, 11:06 PM   #8
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Default Re: Asus p5kpl-am epu

Thank for replying.
Ok, This is what I found.

Nikos
P09036BDG
VN38J1M12
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Old 01-05-2012, 04:54 AM   #9
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Default Re: Asus p5kpl-am epu


I think these will work fine, but please ask PCBONEZ to confirm:
http://search.digikey.com/ca/en/prod...8CT-ND/1154651
http://search.digikey.com/ca/en/prod...PBF-ND/1300684
http://search.digikey.com/ca/en/prod...0CT-ND/1305821
http://search.digikey.com/ca/en/prod...8-1-ND/2170236

There are more available on Digikey.
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Old 01-05-2012, 09:20 AM   #10
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Default Re: Asus p5kpl-am epu

Thanks a lot for this info. CHEERS
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Old 01-05-2012, 11:21 AM   #11
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Default Re: Asus p5kpl-am epu

I'm not proficient in transistor swapping. [Hardly ever do it..]
Better to ask Toasty if you need confirmation.
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Old 09-12-2012, 02:34 AM   #12
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Default Re: Asus p5kpl-am epu

i have the same board, it work fine with pentium 4, 2.66GHz but on other higher processor, it freezes and sometimes it won't POST...any idea will be highly appreciated...thanks
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