A question for the more technically astute (dont know if that is a) spelt right or b) even a word at all) amoung us, i seem to have a odd situation with ram.

Will be upgrading to Vista 64bit soon so ordered the software and 2 more gig sticks of ram

decided to install the ram today and the new software at the weekend

with the new sticks in, i booted my pc to be faced with an apparently corrupt file called ntkrnlpa.exe with a status of 0xc0000221

i took out the new ram and rebooted straight into windows

left the situation for a couple of hours

put one of the new sticks in, booted fine

put 2nd stick in same issue

have checked my mobo bios version and it is upto date

have swapped teh ram over and both are fine

any suggestions as to a solution, or will this dissappear when i install 64 bit vista

Is all your memory the same type and 2 lots of matched pairs ?

Otherwise if it's dual DDR you're wasting your time.

You shouldn't be using ECC RAM either.

There might be a BIOS setting to disable dual DDR in which case it might boot, but your machine will actually be running slower.

If you have bought non-ECC and matched pairs then your mobo may require you to put one pair in sockets 0 and 2 and the other pair in 1 and 3...though I've seen some where you are meant to use 0 and 1 and then 2 and 3.

Haven't really got enough information to go on here Chris...

Exactly what memory modules did you buy and what mobo have you got ?