bsod again

[denis280]

Hi all need little help.just posted in another one about this problem.now it's back again.
asus m4a77d (2201) bios
phenom ll x2 555 black
g-force 9500 gt
8 gb kingston ddr2 800
cooler master 500
500 gb wd
cooler master heat sink
it all started when i changed mi cpu.with vista 64 got bsod then work fine for 2 days.got tired format and install windows 7 ultimate 64.bsod on install.finely got install.work ok for 10 hours.then bsod(0x0000007e) no post no beep after reseting.took one dimm out then started ok.so now it is working.but still dont understand.i dont think one dim could when bad just like this.

 

[RadiclDreamer]

First things first, try running memtest86+ or goldmemory and see if it can see any errors. It definitely seems like a single stick of memory has gone out on you. On the upside, kingston has a great warranty

 

[denis280]

Thanks RadiclDreamer.Just got home from work turn on pc. no post no beep.took the cooler master heatsink off.pull the new cpu out and replace back with the original heatsink and it post ok.the only difference with the cooler master cpu temp was 22 and 24 cl. and now 33 and 36.i guest my cpu was not sitting properly.or the heatsink pulling too mutch on mobo. thanks again for the reply.