Signal to monitor drops after Windows 7 Boot, and now during Installation when expanding files starts.

Ok long story so I'll start with my specs. I'm new here so bear with me if I don't include all the necessary info on the first shot.

Phenom II x4 955
MSI 760GM-P35
Corsair CX600 Modular PSU
xFx 7850 1 GB
8 gb DDR3 1333 RAM
Win7 HP 64
Western Digital 1TB HD

Ok so I have checked every forum and tried almost everything, and I'll try to cover it all here. After noticing my core running quite hot while converting some video files for streaming to an IPad, my computer froze up. I had to manually power it off and back on and I started losing signal to my monitor during boot. I was getting a hyper transport sync flood error every once in a while in the past, but it hadn't happened in months.

The first thing I did immediately was test my graphics card and PSU on my other PC which ended up fine. At this point I just left the graphics card out and was getting the same problem with on board graphics, but was not getting the problem in safe mode. In safe mode I tried almost everything in regards to drivers, including driversweeper, uninstalling video drivers in device manager and rebooting from there, ran Malwarebytes because one site said it could be a virus, and on and on. I finally backed up my data and attempted a clean Windows installation.

Unfortunately for me, I am losing the signal to my monitor as soon as the expanding files step begins. It seems as though as soon as the PC tries to do something that might stress it a bit, the display goes out. The PC does not change and the fan continues to spin, so it at least seems like its not completely freezing up, but of course I can't tell due to the lack of display. I tested the hard drive with MHDD and ran a few runs of memtest. I tried re-seating RAM and only using one stick at a time and all the different slots. I tried different media, and different versions of Windows, as well as different optical drives, monitors, mice, keyboards, and cables. I have also gone through the BIOS dozens of times checking options. The only one I think would affect anything here is the primary graphics option which I have set to internal rather than PCI-E since I removed my 7850. I think the only things I haven't tried yet are fresh thermal paste, a different hard drive, or swapping the processor or motherboard. UPDATE: Tried fresh thermal paste and it did not work either. Will be swapping out for a different phenom II in the next couple of days.

Is it possible that this is a processor issue or an issue with thermal paste? Are there any other crazy ideas that I could try to get Windows installed without having to buy another part? I will be trying fresh thermal paste and a different CPU tomorrow. Any and all input is appreciated, as I am at a loss here. Thanks so much for reading and for any replies in advance.

UPDATE: After finding out that my LED 1 or HDD LED on my motherboard was going out at the same time that I was losing my display, I read the mobo manual in its entirety. It ends up this LED going out indicates that your CPU Power Phase Level is going from phase 3 to phase 1, which apparently is not good. I am unsure how this setting got switched, or if it automatically switches when your CPU reaches a certain temperature, or if it means anything at all other than annoyingly dropping the display. I disabled the setting under Green Power menu in the BIOS, and will be testing to make sure I don't burn this machine up.
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  1. I would try reseating the processor first. Testing with another processor doesn't tell you if you had a problem with your processor or with the thermal paste, so I would do these steps first. If still does have problems after doing these steps, then try the other processor.
    Clean-off old thermal paste and apply new thermal paste.
    Re-attach heat sink.
  2. I just tried fresh thermal paste and that was not it either. I'm starting to think I either burnt out the processor or something in the mobo is messed up. Will be trying another processor sometime this week.
  3. BTW, stay away from Apple stuff, they want to own you and take your money also while they are at it, and tell you that it is cool, and that you're cool.
  4. danny2000 said:
    BTW, stay away from Apple stuff, they want to own you and take your money also while they are at it, and tell you that it is cool, and that you're cool.


    What does this have to do with Apple? :heink:
  5. Well I just got done with even more troubleshooting and realized that the HDD LED on my motherboard goes out at the same time that I lose the signal to my monitor. I tried to KillDisk my hard drive, and attempted a separate hard drive all together and just kept getting the same problem. I tried different SATA cables and am running out of options. At this point I am hoping for the motherboard to prove itself bad somehow just to end my strife.

    In regards to the Apple comment, I highly doubt this is due to their product. Even if the reason I am having this problem is because my processor overheated while converting files to mp4 format, which has nothing to do with the Ipad, that would be a fault of mine for not having proper cooling in my machine. Thanks for the help.
  6. sorry, I must have posted to the wrong thread :)
  7. Well I finally figured it out, and I feel relieved but a bit stupid too. After all of this, I read the entire mobo manual, and found out that the HDD LED, or LED 1 on my mobo, going out meant that the CPU power was going from phase 3 to phase 1. I don't know what this means just yet, but it was a setting in the BIOS that I changed under Green Power which disabled this from automatically happening. I can't figure out why it was fine before, or if the setting got switched somehow, but I will be buying case fans and working on cooling. I hope this monotonous post helps someone figure their problems out.
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