Oh, pick me, pick me. I know. (Lol!)
1) Chip and Chipset are slang terms for I.C.
Integrated Circuit,
http://en.wikipedia.org/wiki/Integrated_circuit
2) The Southbridge chip of the motherboard chipset, handles the USB bus, and PCI bus.
http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg
The Low Pin Count Bus goes from the Southbridge chip, to the Super I/O chip.
The Super I/O chip handles the Keyboard and Mouse.
http://www.ecsusa.com/ECSWebSite/Product/Product_Detail.aspx?DetailID=673&CategoryID=1&DetailName=Feature&MenuID=16&LanID=9
The motherboard chipset for the ECS P4M800 Pro-M is a
VIA P4M800 - Northbridge chip, and a
VIA VT8237R+ - Southbridge chip.
http://en.wikipedia.org/wiki/List_of_VIA_chipsets#AMD_.2F_Intel_processors
[The Northbridge chip is under that aluminum finned Heatsink, close to the Processor.
The Southbridge chip is to the right of the white long PCI slots.
Green square circuit board, with VIA in the middle of a silvery circle ]
Does the VIA southbridge chip looked burned, or bubbled?
http://en.wikipedia.org/wiki/Super_I/O
Which one is the Super I/O chip? Don't know. I think it may be that ITE chip to the left of the VIA southbridge chip. (VT8237R+)
http://web.archive.org/web/20070929033214/http://www.esupport.com/techsupport/award/superio.htm
Does it look burned, or bubbled?
Look at the Electrolytic Capacitors on the motherboard.
(Radial Aluminum Electrolytic Capacitors, to be more specific)
Some of these are used in the motherboard voltage regulator circuit.
SOME are for regulating voltage for the I/O bus, and USB bus.
(No, not referring to the solid Polymer capacitors surrounding the Processor socket)
1) http://www.hardwaresecrets.com/article/616
2) http://www.hardwaresecrets.com/article/How-to-Identify-Japanese-Electrolytic-Capacitors/595
3) http://www.youtube.com/watch?v=YCSNWi3UHf4
4) http://www.mouser.com/Passive-Components/Capacitors/Aluminum-Electrolytic-Capacitors/Aluminum-Electrolytic-Capacitors-Leaded/_/N-75hqw/
Look for other burned SMD's on the motherboard.
Regards,
joecoolvette
SOURCE: sistem build on ecs p4m800pro-m motherboard shut down every time
I had the same problem, make sure the connector is plugged in the right way, use USB0 as the manual shows, check the front PCB make sure it's not shorting out at all.
I had the connector backwards.
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