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i think my mobo is deep fried...
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Original Message
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Name: Michael
Date: August 27, 2003 at 08:08:54 Pacific
Subject: i think my mobo is deep fried...OS: xpCPU/Ram: p4 |
Comment: ok heres the problem, i turned on my pc yesterday to find that smoke and small sparks were comming out of it! so i unpluged the pwr and i examined my mobo and i see a dark spot on a small chip on the mobo. so............is this mobo deap fried and useless now? its not very old, its a asus p4b533...
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Response Number 1
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Name: RayMan
Date: August 27, 2003 at 08:18:32 Pacific
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Reply: (edit)i'd say so. is there anything you can say caused the burnout? perhaps something on the underside of the MB?
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Response Number 2
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Name: Janos
Date: August 27, 2003 at 08:45:57 Pacific
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Reply: (edit)Oh no not the P4b533. That is one magic board, I would be droping a tear or 2 about now. Im going to take a wild guess here, but power suply ? What type and brand was it ? Have it checked before connecting a new mobo. Regards Janos
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Response Number 3
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Name: RayMan
Date: August 27, 2003 at 11:27:04 Pacific
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Reply: (edit)Michael, to test the power supply you'll need a voltmeter, a paperclip, and a 10ohm 10watt resistor. use this for reference.
ATX PowerSupply
one of these days i'll just write this out and link to it.
jumper pin 14 to 13 or 15 with a paperclip. That will turn on the power supply. first check the following pins for correct voltages.
pins 1&2 +3.3V
pins 4,6,9,19&20 +5V
pin 18 -5V
pin 12 -12V
pin 10 +12V
pin 8 (PWR OK) should be +5V
next use the 10ohm resistor to load the +5 & +12V pins by connecting one side of the resistor to the pin and grinding the other. read the voltage at the pin. if they are more than 5% off the rated voltage, it's got problems.
I would think if the supply damaged the motherboard, testing it unloaded will indicate it's condition anyway.
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Response Number 4
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Name: mc144022
Date: August 27, 2003 at 12:41:23 Pacific
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Reply: (edit)i dont have a major brand of power supply sth called hipro. the thing is that i used this in my old pc and it was working perfectly. the reason i switch the power supply was that the pc wasnt turing on with the old psu, so i swapped psu and i saw fireworks commin outta my mobo, not to metion the smoke and smell. :(
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Response Number 6
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Name: RayMan
Date: August 28, 2003 at 10:23:25 Pacific
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Reply: (edit)Your old computer wouldn't by any chance by a DELL would it? Dell computers manufactured after 1998 have a proprietary ATX PS that if used with a standard ATX MoBo will kill not only it but the powersupply as well. the 20 pin connectors are identical but virtually all connections are different. I've been looking at different PS configurations. 2 prominant version are ATX(standard) and SFX. the only difference is that ATX has -5V on pin 18, SFX has no connection (reserved).
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