Win2k Server BSOD

[Soviet_Genius]

I recently got an old machine and I'm trying to set up a server. This problem started after I got all the windows updates through express install on the website. 4 out of 5 times I log on to the machine, after about a minute I get a BSOD which says

Code: [Select]

***STOP: 0x0000001E (0xC0000005, 0x804605C3, 0x00000001, 0x00000000)
KMODE_EXCEPTION_NOT_HANDLED

*** Address 804605C3 base at 80400000, DateStamp 45ec3c8f - ntoskrnl.exe

Beggining dump of physical memory
Dumping physical memory to disk: [countdown from 100]
Running Windows 2000 Server SP4, Pentium 4 1.5 GHz, 256 mb RAM, GeForce 2