Several errors in XP

[Qerr]

for some reason I have goten several errors on my PC, here is some of them

Error code 1000008e, parameter1 c0000005, parameter2 bf8a2c76, parameter3 b9d1fbe4, parameter4 00000000.


Error code 1000007f, parameter1 00000008, parameter2 80042000, parameter3 00000000, parameter4 00000000.

Error code 00000050, parameter1 88b64688, parameter2 00000001, parameter3 8052ec54, parameter4 00000000.

thise are not all, I have also goten

PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) where win32k.sys was indetefied. I have also goten 0x0000004e, 0x000000BE, 0x0000001A

I thought it was that I had to small a powersupply but the I disconnected a HDD my CD-burner.

system is this:

Operating System
Windows XP Professional Service Pack 1 (build 2600)
2.07 gigahertz AMD Athlon XP (2600+)
NEC DVD_RW ND-1300A
WDC WD1800JB
764mb ddr memory( cant remember what brand atm)
msi gf4 ti4200 64mb
k7n2 delta-L motherboard
300w powersupply

That is what I have in now, I have aslo a 120gb hdd and a cd-burner but they arnt connected atm.

I have run a memtest 86 that havent found any errors with my ram.
I also get errors when I use programs thise seems to be random aswell :\
For some reason when I install driver updates for my gf4 ti4200 I get a msg that it hasnt past the xp test, is this normal or?
If anyone need any more info just ask and I will try to get it