Howdi, I've started getting random reboots the past week or 2, finally i disabled reboot on error so i could find out what exactly was wrong, so now, i have written down, a couple of errors that i have gotten from these BSODs. Due to the reboots, i tried to investigate what could be wrong, and read it could be, 1) RAM, 2) Drivers, 3) Other hardware. So i promptly, updated my GFX drivers, my webcam driver and searched for new motherboard drivers and only found a newer one for my integrated sound. Then i got this: PAGE FAULT IN NON PAGED AREA # STOP: 0x0000008E (0xC0000005, 0xBF8003C0, 0xEF9A6770, 0x00000000) win32k.sys Address: BF8003C0 (i didnt write down more than this on paper) Then upon shut down i swapped my 2 ram sticks from slots 1 and 3, to slots 2 and 4, then later on i got this: PAGE FAULT IN NON PAGED AREA # STOP: 0x00000050 (0x8B0189FC, 0x00000000, 0x804EB63E, 0x00000000) (i didnt write down more than this) Following this shut down, i removed stick 2, so was left with 1 512mb stick in slot 2. Computer was on all night, largely getting near 100% RAM usage at times, no BSOD. Then the following morning (this morning) i plugged in again the 2nd stick of RAM into slot 4. I worked away, trying to force 100% RAM usage to get a BSOD, and eventually, i got this: DRIVER IRQ NOT LESS OR EQUAL # STOP: 0x100000D1 (0x00000039, 0x00000009, 0x00000000, 0xEF027437) i8042prt.sys - Address: EF027437 base at EF027000 DateStamp 41107ecc Included are the following files: PStat Result: clicky Program Groups: clicky Error Text: clicky I havent run a memtest for the sole reason i only have this machine running and dont want to lose access to it for simply running a memory test. I think that my 2nd ram stick is faulty, but this idea has been confused by the fact that i now get an IRQ BSOD for a keyboard driver. Please note i run Windows XP Professional w/ SP2 and all latest updates. I have added no new hardware recently, i HAVE installed a few new programs but nothing major. Any help and ideas would be greatly appreciated. Regards, Andy.