Hi, I am fairly new to this forum so I hope I posted this topic in the right part of the forum. I am having some difficulty debugging my pc so you guys are really my last resort. About three weeks ago I bought myself a new pc. A8N-Sli SE AMD athlon64 X2 3800+ 2 x 1 Gb Kingston DD400-x64-C3AK2 Sharkoon Silentstorm 535W ATX2 XFX 7900GT Extreme I am having a lot of BSOD with my pc they most of the time show me the infinite loop in NV4_disp.dll. STOP: 0x0000008E(0xC0000005,0xBFAAACBC8,0xA7CE2AEC,0x00000000) But also I have had: KERNEL_STACK_INPAGE_ERROR STOP: 0x00000077(0xC00000B5, 0xC00000B5, 0x00000000,0x00B5A000) I have had these messages when playing Oblivion, Call of Duty 2, Battlefield 2. Sometimes I can play for hours and not notice anything strange but sometimes I immediately get stuck. Sometimes I get an error message and sometimes my screen just turns black and my monitors power led starts blinking. I have even experienced a BSOD just when installing a display driver. Or my screen turning black when I was just running a windows application. I have monitored my system and it is not a heat problem. My motherboard has a normal temperature of 30 – 40 degrees. CPU 30 – 40 degrees and my GPU doesn’t get warmer then 60 degrees (max of this GPU is 125 degrees according to the manual). So I think I can say I am in the save zone. I have tried a lot of things. - Tried 4 different display drivers for my videocard. - Tried a friends videocard in my pc (exactly the same one) - Tried memtest for 7 hours in a row, no problems with the memory - Tried each 1 gig of memory separately in my system. - Installed windows on a different harddrive. (SATA -> IDE) - Tried another PSU None of these methods seemed to solve my problem. I also noticed my SATA harddisk didn’t always get recognized, but it has been a while since I noticed this. This happened with more then 1 different harddisk. I find my problem very frustrating because I just can’t point out one particular thing which must be broken. I really don’t think this is a display driver issue, a friend of mine has almost exactly the same computer (apart from the harddisks) and he doesn’t have the same problems I do. I read in other forums that is was in a lot of cases useful to also post a few minidumps. So I will attach a few to this topic. I have a lot of these minidumps so if you need more I am more than willing to upload! I really hope someone can help me out.