Hi guys I have a problem where if my system gets stressed, it crashes and restarts. It's a new system I put together myself, and its driving me crazy, so I would appreciate any help. System: Motherboard: Asus Extreme Striker Ram: 3 GB (3x1GB) Corsair XMS2 – 6400 (800) GPU: 2x Nvidia GeForce 8800 GTX running in SLi Sound Card: Creative Sound Blaster X-Fi Xtreme Audio Hard Drive: 2x Western Digital Raptor (10,000 RPM) 150 GB CPU: Intel Core 2 Extreme QX6800 OS: Windows Vista Ultimate 32bit Power Supply: Enermax Galaxy 850W Chasis: Thermaltake Kandalf LCS First let me say I’ve updated every component with the most recent drivers, and updated the bios to the newest version (1102) The system first crashed while I was running Battlefield 2. I tried it again and the same thing happened. I figured it might be a problem with a game. But then I tested the system and ran two movies at the same time. After about a half hour the system crashed again. I ran a system stability test using the Stability Test on the Nvidia Control Panel, and the system crashed after almost a half hour. I only ever got a Blue Screen of Death once, and the error was Bad_pool_caller 0x000002, 0x00000007, 0x0000113d, 0x886e0620, 0x886e0628 I figured it might be the audio card, so I disabled the card from Device Manager. Unfortunately the system crashed again. The system only crashes when running something intensive, like movies, or a game, or the Nvidia stability test. The BSOD never repeated, the system just crashes and automatically reboots. Event Viewer in the control panel lists dozens and dozens of the following Event ID 6 error: IRQARB: ACPI BIOS does not contain an IRQ for the device in PCI slot 24, function 0. Please contact your system vendor for technical assistance. The PCI Slot numbers in the event error change, but I read an article on the microsoft support site that said this was normal with vista, and could be safely ignored, which means I don't know if its relevant. I’ve got a liquid cooling system on the CPU. Unfortunately I can’t see what the temperature is for the graphics cards, because the Nvidia Control Panel doesn’t show their temperatures, even though I’ve installed ntune. I even downloaded sensors view, and it won't show my GPU temperatures either! The whole system's only a few days old. Recently I tried to install a program, got the BSOD and the below message. I don't know if its related. pfn_lilst_corrupt 0x0000004e (0x00000099,0x00072f1d,0x00000002,0x00048f1c) it really sucks I don't know whats wrong, and I'd appreciate any advice, as its driving me up the wall. Thanks! please see attached files from cpu-z and pcprobe, they might help you see whats up!