computer dead or not?

[FluorideInMyWater]

i have a lenovo computer.....tower s10 series
been having intermittent problems with video..........3 nvideo graphics cards installed.

all of a sudden the computer wont post. the fans spin but the computer does not post. i undid the main power connection and there are burn marks on 2 pins..........does this mean that just the power supply is the prob or could the motherboard be affected as well?

when i remove all the pci cards and the memory nothing happens still......no beep code.......just spinning fans

[the86d]

Easiest way to tell is with another power supply, IF you have one handy...

I have seen sparks shoot out of power connectors with cheapie power supplies (lit-up the place like small lightning) to the mainboard connections, and it ran for years later... after putting a good power supply in it.

[FluorideInMyWater]

sun of a GUN.....................my last attemp was removing the CMOS battery and violat!!!!

[FluorideInMyWater]

well, turns out after playing for 6 hours that i had a bad stick of RAM. looked perfectly fine.....how ever i am concerned about the yellowing on 2 of the 24-pin connectors.....not sure if it is a big deal.......too much heat?......kind of a dark yellow but not brown. might that be caused by the MB or the PS?........OR both

[the86d]

See if any caps are leaking around it and spewed onto it?

One of the solder connection on a chip of the module, is it?
I don't think I have ever seen that, aside form a short, but that usually black and brown burn marks in the cases I have seen, but I have never seen that on RAM yet...