I am running Windows XP with SP2 and my laptop computer keeps resetting by itself. The Microsoft Online Crash Analysis came up after reporting the error which is listed at the end of this message. I read another thread that is similar to this and did what it said to do to capture the error on the BSOD - blue screen of death. The error is: IRQL_NOT_LESS_OR_EQUAL Stop = 0x0000000A (0xRD0CA1B4, 0x0000001C, 0x804C1A6B) Requiring dump of physical memory Physical memory dump complete Check that any new hardware or software is properly installed. Other information: My laptop is one year old, has been shutting itself down due to excessive heat - it is an HP zd7000 monster with high heat. I recently upgraded the memory by installing a legacy 1GB memory chip into one of the slots that had 256MB chip in it. I now have 1.280GB and the system information shows it as running fine. == The ONline Crash Report from Microsoft === Thank you for submitting an error report. Microsoft is unable to specifically determine what caused the problem you reported. If you would like to try and troubleshoot the problem, please utilize the information listed below. Analysis A device driver installed on your system caused the problem, but we cannot determine the precise cause. Depending on which situation is applicable to you, do one of the following: If this problem occurred after you installed a new hardware device on your system, the problem might be caused by the driver for the device. If you know the manufacturer of the device, contact the manufacturer's product support service for assistance. Some software, such as firewall and anti-virus software, also installs drivers. If this problem occurred after you installed new software, the software might have installed a driver that caused the problem. If you know the manufacturer of the software, contact the manufacturer's product support service for assistance. If you don't know the driver's manufacturer and need help diagnosing and resolving this problem, contact your computer manufacturer's product support service. Updated drivers might be available on the Microsoft Windows Update Web site. At Windows Update, you can have your computer scanned and, if there are updated drivers available, Windows Update will offer a selection of drivers that you might be able to use. To learn more about updated drivers that might be available, visit Microsoft Windows Update. I had just done an update when this started happening. "Updates are ready to install, click here" - clicked the icon which I always do, it did its thing and then this started to happen.