Memory_Management error windows XP SP2

Hi

My computer has been crashing and I get the blue screen with Memory_Management 0X0000001A error.

I ran Memtest and my memory tested OK.

I ran Prem95 and it failed both tests.

I have recently replaced my motherboard, CPU, CPU fan and Power supply. I dusted out my computer.

I ran a Microsoft update WindowsXP-KB929338-x86-ENU.exe which is supposed to fix some Memory management problems but that did not help. I had one crash after installing that fix and I got a PFN_LIST_CORRUPT error which I had not gotten before.

If anyone has any experience with this kind of error I would appreciate help.

Thanks