I recently upgraded my power supply, motherboard/cpu, and graphics card. I just finished installing all of the hardware, but now when I turn on my computer it gets as far as the Windows XP loading screen and freezes after a few seconds. I've tried starting it in safe mode, but that also freezes. The last file it gets to is IPVNMon.sys and then it says "press ESC to cancel loading SPTD.sys" and it goes no further than that. I'm not sure how my new hardware could be causing this. Any insight would be greatly appreciated.

It sounds like you are using your existing harddrive that had a previous installation of Windows on it. Is that right? If so then now since you put in a new motherboard, XP is sure going to think you've put it in a different computer - and, in effect, you have. Generally, it is best to uninstall all HW drivers just before pulling the old board and then put in the new board.

IPVNMon.sys belongs to Visual IP InSight and is usually distributed by ISPs.

I suggest you try a Windows Repair Install. I hope you backed up any critical data on your HD before attempting anything so drastic as a motherboard swap. If not, and there's something on the disk you don't want to lose, I strongly recommend you install your HD into another computer as slave or secondary drive and copy your data.

Yes, I am using my existing HD with Windows. I do have all of my important data on an external HD, so I have no problem with losing data.

I actually did get windows to load up, but I don't have everything powered up. I don't have power to my 4 case fans, my 2nd CD drive, or my 2 tempurature displays. The IDE cable for the CD drive is also unplugged. To me it seems like the power supply might be the cause, but my new power supply is more capable than the one I replaced, which ran everything smoothly.

You suggested uninstalling all hardware drivers, which I did not do. Since mostly everything is running smoothly, can I assume that the drivers are ok?

You suggested uninstalling all hardware drivers, which I did not do. Since mostly everything is running smoothly, can I assume that the drivers are ok?

Probably. The drivers to be concerned with would be the those required for all the devices on the motherboard, and your video card - which is just about all the drivers for your PC - You need to check the following:

• CPU speed
• RAM amount matches RAM installed
• Network/Internet connectivity
• SATA and IDE drives function and identification in the BIOS
• On-board sound
• Mouse and keyboard input
• USB/Firewire devices
• Errors in Device Manager

If all the above (depending on what you currently have connected) work, start adding devices one at a time and see what happens.

Do make sure you follow necessary ESD precautions for static control. Did you apply TIM (thermal interface compound) to the CPU die?

What PSU, CPU, and graphics card did you get?