Question about Intel Gigabyte GA-8IG1000 Pro-G 865G Socket 478 DDR 400 ATX Motherboard w/Integrated VGA, SATA, LAN(... (MG8IG1000PG)

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Cpu cannot boot

My cpu had a light spark ad then turned off. i checked the power cord ,its working because monitor gets started when we swicth on the system but cpu is not even showing any l.e.d (any light) when i press the power button on cpu its not working ,not even showing led . no led or usb drive showing power even cd roms and floppy drive not showing light fan does not start even when power plug is on i m using p4 and its agp 8x/dual channel ddr

Posted by manjeet sandhu on

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Hi, the most likely place(s) where a spark could occur on your motherboard would be near the processor where the big transistors are, the capacitors. Such if it were the case would mean that your motherboard is most likely fried and therefore would require replacement. Check if there are any burnt marks or try to smell the motherboard. Arcing (spark) would leave a telltale burnt smell within the immediate area. Another likely place would be the capacitors themselves (3300uF/6.3V or something like that). Normal capacitors would have flat surfaced end with an indented X or T mark. If any would show a bulging, cracked, open or blistering open, then chances are they are busted, leaking, shorted - all meaning motherboard replacement. Aside from the motherboard, it might be that the power supply itself is defective. Normally (but not always) spark/arcing would occur in the hotside (the one directly connecting to the mains). You are probably better off buying a new PSu rather than have it repaired. In some cases, PSU with on/off master switch at the back have been known to have arcing/sparking problems. In this instance, switch replacement is possible without replacing the entire powersupply. In extreme cases, the said switch can be left out (removed) and the two wires going to it just twisted together and taped. Again this is on the hotside. If you are not comfortable working with power supplies, may I suggest you ask a competent service personnel to do the repalcement or removal and shorting. Hope this works out for you. Cheers.

Posted on Apr 20, 2007

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