Hey!
Last night, my longstanding PC of several years froze, whilst browsing the internet. This is the first time it has ever frozen like this, though it has recently (last month or so) been experiencing small pauses where video and sound will freeze for a few seconds then resume. I allowed the PC to sit frozen for a few minutes, before giving up and shutting the computer down, and going to bed.
Today, I'm unable to get the computer to load into Windows. It will hang indefinitely on the Windows logo. Using safe mode, it wall stop after loading the file "CLASSPNP.sys". Using the repair mode (accessed by F8) the computer will reach the Windows loading screen the the progress bar, then blackscreen indefinitely.
Initially I attempted to boot Windows from the system disk, and was able to reach the repair screen a couple of times, where it prompted me to restart the PC to apply repairs. After doing so, I'm no longer able to the reach the menus on the system disk, as the computer will hang on the Windows logo, as with the standard boot. My main goal has been to attempt to do a full reinstall of windows, however I'm unable to get to a somewhere where I can do this.
During the restarts necessary to try and boot Windows, the computer has been occasionally (once every 4 or 5 starts) power cycling on startup. It will cycle once, then start into BIOS. This has never occurred previously.
I have checked that BIOS is updated, which it is.
I have created a drive with an image of Hiren's Boot CD, and used a few of the tools on there, without much success. I've used the Memtest86+ to test memory, which reported 0 errors. I have also attempted to boot into the Windows XP Image on this CD, however this failed; going to bluescreen with an error for Partmgr.sys. I haven't used many of the other tools on this CD, as I do not feel confident them.
BIOS is reporting that the processor is at a standard temperature, 30-40 degrees.
I have checked the CMOS battery, and this seems to be fine, outputting 3.0V.
I experimented with removing components from the system, and discovered that if the Video card is unplugged from the power, the computer will begin to power cycle endlessly, and will never output any video. This makes me lean towards the PSU being at least part of the problem, though I don't know if it could be responsible for everything.
Nothing has changed on the PC recently, the most recent hardware changes were made over a year ago. No major software updates have been done recently either.
I've basically reached the limit of my troubleshooting capability at this point, so any help would be very appreciated.
PC Specs:
Motherboard: Gigabyte H61M-D2H-USB3
Processor: i5-3570K
Memory: 2 x Kingston khx1600c9d3b1/4g 4 gig
Video Card: Gigabyte GTX 960 4GB - GV-N960OC-4GD
Hard Drives: OCZ Vector150 SSD - OS Drive, OCZ Trion100 SSD, Seagate ST500DM002 HDD
PSU: CorsairCX600; this unit is now roughly 6 years old so will be next on the list to replace, regardless of whether it is the cause of these issues.
Last night, my longstanding PC of several years froze, whilst browsing the internet. This is the first time it has ever frozen like this, though it has recently (last month or so) been experiencing small pauses where video and sound will freeze for a few seconds then resume. I allowed the PC to sit frozen for a few minutes, before giving up and shutting the computer down, and going to bed.
Today, I'm unable to get the computer to load into Windows. It will hang indefinitely on the Windows logo. Using safe mode, it wall stop after loading the file "CLASSPNP.sys". Using the repair mode (accessed by F8) the computer will reach the Windows loading screen the the progress bar, then blackscreen indefinitely.
Initially I attempted to boot Windows from the system disk, and was able to reach the repair screen a couple of times, where it prompted me to restart the PC to apply repairs. After doing so, I'm no longer able to the reach the menus on the system disk, as the computer will hang on the Windows logo, as with the standard boot. My main goal has been to attempt to do a full reinstall of windows, however I'm unable to get to a somewhere where I can do this.
During the restarts necessary to try and boot Windows, the computer has been occasionally (once every 4 or 5 starts) power cycling on startup. It will cycle once, then start into BIOS. This has never occurred previously.
I have checked that BIOS is updated, which it is.
I have created a drive with an image of Hiren's Boot CD, and used a few of the tools on there, without much success. I've used the Memtest86+ to test memory, which reported 0 errors. I have also attempted to boot into the Windows XP Image on this CD, however this failed; going to bluescreen with an error for Partmgr.sys. I haven't used many of the other tools on this CD, as I do not feel confident them.
BIOS is reporting that the processor is at a standard temperature, 30-40 degrees.
I have checked the CMOS battery, and this seems to be fine, outputting 3.0V.
I experimented with removing components from the system, and discovered that if the Video card is unplugged from the power, the computer will begin to power cycle endlessly, and will never output any video. This makes me lean towards the PSU being at least part of the problem, though I don't know if it could be responsible for everything.
Nothing has changed on the PC recently, the most recent hardware changes were made over a year ago. No major software updates have been done recently either.
I've basically reached the limit of my troubleshooting capability at this point, so any help would be very appreciated.
PC Specs:
Motherboard: Gigabyte H61M-D2H-USB3
Processor: i5-3570K
Memory: 2 x Kingston khx1600c9d3b1/4g 4 gig
Video Card: Gigabyte GTX 960 4GB - GV-N960OC-4GD
Hard Drives: OCZ Vector150 SSD - OS Drive, OCZ Trion100 SSD, Seagate ST500DM002 HDD
PSU: CorsairCX600; this unit is now roughly 6 years old so will be next on the list to replace, regardless of whether it is the cause of these issues.
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