Power jumper I just got the k7sem mobo there are diffirent niddle for poer how do I hook them? there is one for power, reset, and H.D.D??

It could be possible that there are some settings in BIOS that prevent You from booting because as much as the dual PSU is good, it will never give the same electrical current. And when You MB feels the difference, it stops from booting in order to prevent electrical damage.

I suggest that if really want to keep tour
PC and have some $$$ (200) then buy a poer supply and a mobo and replace it.

K7SEM (V1.0) link; http://www.ecsusa.com/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=229&DetailName=New&DetailDesc=&CategoryID=1&MenuID=6&LanID=9

K7SEM(V3.0A); http://www.ecsusa.com/ECSWebSite/Downloads/ProductsDetail_Download.aspx?detailid=193&DetailName=Driver&DetailDesc=&CategoryID=1&MenuID=6&LanID=9

Vista driver for SiS 7018 Codec Sound Driver.
http://driverwhiz.com/drivers-en-mcaffee-download?brand=Windows%20Vista%20Audio&logo=Windows%20Vista&subid=1001-us-en-10000003799&gclid=CPu69YDv3KECFRE95QodCE3mKg

Good luck!
Mike

maybe your OS is damaged..
try to reformat your pc or try to repair it using the OS cd..

well the red and black are the hots, they go on the 2 outside terminals. the center terminal is the neutral for the white, the green should go to a good nearby chassis ground..
hope this helps,
best of luck,
ttfn

this poage has a link to download a copy of the service manual for that motherboard

hope it helps.

http://www.eserviceinfo.com/downloadsm/5105/Compaq_Evo%20300-500.html

try here http://www.abit.nl/ you might find what you need ;-)

Your manual says:

Accommodates AMD Athlon Duron, Athlon, and Athlon XP processors.


If you would like to see a fulll list, go to this site:

http://forums.techguy.org/hardware/494450-max-cpu-ecs-k7sem-motherboard.html

Hope this helps.

Try to verify the real battery voltage and polarity (use multimeter) or cleaning the socket contacts.

Unfortunately, you have not provided any details regarding current specs (PSU, type of SDRAM, etc.) to enable anyone to suggest a replacement motherboard. For freeform discussion, I would agree that FixYa is probably not the best medium, e.g. in discussing potential replacements. Rather, if you have a specific question which has a specific answer, then this site would be better suited to your needs. As to your original question, the best answer I can offer (personally) is that if your CPU is soldered to the board, you should complain to the vendor who sold it that way (that's crap), and replace the board with something suitable (provide more details). If there's a belief it may not be soldered, the heatsink is probably attached via thermal paste, and is going to be a PITA to remove. Sometimes it will pull off with some force, though on at least one occasion, the solder joints beneath the socket gave before the thermal paste did, causing the heatsink, CPU, and socket to all come off the motherboard.