Problems with new memory!

[SodaCose]

first off, here's my rig:

biostar p4vtg
celeron d 340 (zalman cooler)
512mb pny
pny 5900xt
creative audigy 2 platinum
400w psu
3 antec case fans

so i just replaced my old cpu (p4 2.0) with the celeron, but now my system keeps hanging when i'm playing games or multitasking. i swapped out my original 512mb pc3200 and put in 256mb of pc2100 and the system worked albeit more slowly. so i guessed it was the old memory. bought new 512mb of pny and the same thing is now happening!

why does my mobo handle 256mb of pc2100 but not 512mb of pc3200?! it worked before i replaced the cpu; what is my mobo doing to the ram?? i know nothing is overheating. it has to be something with my mobo and the memory.

please someone explain this to me!

 

[OldMX]

make sure you flash to latest bios.

*from biostar: VTG0113.BF / 1/13/05 / Improved compatibility with certain DDR400 memory module. Changed BIOS default year to 2005. Without Biostar splash screen

good luck

oldmx

 

[SodaCose]

thanks for the help. i searched once for bios updates but couldn't find any. guess i gotta try harder.