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Thread Tools | Display Modes |
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#1 |
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New Member
Join Date: May 2011
Posts: 8
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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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#2 |
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Unknown
Join Date: Sep 2009
City & State: North Coast, NSW
My Country: Australia
Line Voltage: 240V 50Hz
I'm a: Professional Tech
Posts: 3,427
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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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#3 |
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Badcaps Veteran
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This model commonly has failed NIKOS MOSFETS near the coin-cell battery.
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...Their plight, in fact is even worse, they don't realize that they're cantonists, they think they're free men. What a slavery that is - to confuse slavery for light, and bitter darkness for bright light. -Rabbi Menachem Mendel Schneersohn |
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#4 |
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New Member
Join Date: May 2011
Posts: 8
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Thanks c_hegge & mockingbird for the info. I will test the component involved and replaced it. Thanks
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#5 |
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The Adventurist
Join Date: Oct 2011
City & State: Bassien
My Country: India
Line Voltage: 220VAC 60Hz
I'm a: Knowledge Seeker
Posts: 80
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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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#6 |
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Grumpy Old Fart
Join Date: Aug 2005
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Professional Tech
Posts: 10,631
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Not without a part number.
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#7 |
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Badcaps Veteran
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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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#8 |
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The Adventurist
Join Date: Oct 2011
City & State: Bassien
My Country: India
Line Voltage: 220VAC 60Hz
I'm a: Knowledge Seeker
Posts: 80
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Thank for replying.
Ok, This is what I found. Nikos P09036BDG VN38J1M12 |
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#9 |
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Badcaps Veteran
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![]() 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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#10 |
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The Adventurist
Join Date: Oct 2011
City & State: Bassien
My Country: India
Line Voltage: 220VAC 60Hz
I'm a: Knowledge Seeker
Posts: 80
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Thanks a lot for this info. CHEERS
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#11 |
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Grumpy Old Fart
Join Date: Aug 2005
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Professional Tech
Posts: 10,631
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I'm not proficient in transistor swapping. [Hardly ever do it..]
Better to ask Toasty if you need confirmation. . |
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#12 |
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New Member
Join Date: Sep 2012
City & State: Manila
My Country: Philippines
I'm a: Knowledge Seeker
Posts: 1
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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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