I need some help with an ancint PC. Cant find any help with manufacturer. Story: Installed upgraded video card, no problem. I discarded 512mg ram. Trouble is: System would not boot while both 1gig and 512mg ram with new video card installed. Did not try boot with only 512mg. Next day I upgraded ram, adding 1gig of same make module. Would not boot fully, winxp screen tries then dies. On multiple reboots Blue screen of death Error code 0x00000024 and 0x00000050. = reason memory, video, virus, new hardware, disk tools, kernel loss, ect. My efforts: Clear cmos, no change. Ran diskchk, no change. Reinstalled drivers for video, no change. Ran virus check, nothing detected. But I did get infected with “ASK”.com. I removed via “regedit” and uninstall but still resides in browser search bar. Testing: each 1gig memory module tested individually in all 3 banks worked fine. (so banks and mem ok.) Did not try uninstall of disk tools. The Raid tool is from asus/ not used, I also run Daemon tools. I don’t run anti virus as this rig is offline mainly.(just xp fire-wall) System loads normal with only 1 memory module installed, in both DVI and HDMI output modes. Maybe I need to flash bios, or do I need more power? I have been away from windows for a long time as Mac OSX is more stable, and less frustrating. But I would really like some help getting this old rig stable again. The M/B says it can run a maximum of 3 gig ram. Please help me Thanks. System: running winxp sp.3 M/B Asus A7v600-x bios ver.2.31 I don’t think I flashed this. CPU Samperon 3000 a462 2.0 gig. Sometimes overclocked, stable to about 2.7 Video XFX Radeon HD 4650 1gig AGP # HD-465X-ZPFR Monitor 1: Samsung 32” # ln32a450c1d Monitor 2: 21” Trinitron Dell OEM # d1626ht Memory Kingston kvr400x64c3a 1gig x 2 modules pc3200 PSU Enermax eg365p-ve 32 amp 350 watt HDD Seagate st3320620a IDE Other note this M/B never recognized SATA drives, and wont boot with 80 pin ata only 40 ata. Frustrating. I guess this M/B is a highly evolved paper weight.