Wierd Issue after Installing New Graphics Card

Discussion in 'General Hardware' started by devvfata1ity, Aug 6, 2011.

  1. devvfata1ity

    devvfata1ity New Member

    Messages:
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    GPU:
    MSI GTX 260 OC3 896
    Hey Guys

    I am faced with a very wierd problem. I am helping building my friend a new rig. We had all the new parts save the GPU & the PSU for which I had asked your advice on a separate thread. The Final config of the rig is this. It has been running rock stable over the last couple of weeks since it was assembled.

    Intel Core i7 2600k at Stock
    MSI P67A GD55
    4GBx2 Corsair XMS 3 DDR3 1600 CL9
    Noctua NH-D14
    500GB WD green, 500GB WD Raptor
    Samsung DVD-RW
    Dell ST 2210
    NZXT Tempest EVO
    Win 7 Ultimate 64

    Now I had ordered the PSU & GPU for my friend from Tirupati. The PSU I selected was TX 850V2 and GPU I selected was a 100% reference HD6950 2GB with Unlockable Shaders.
    Now for the past few weeks since the rig was assembled and since the new PSU & GPU were still coming in, I lend my friend my spare PSU & GPU. These were a VIP 750W Platinum PSU and a MSI GTX 260 Twin Frozr OC. Everything was hunky dory and all the games were playable at 1920x1080p at max settings. We were testing stability so daily the gaming sessions were for 4-6 hrs.

    Now Yesterday the HD6950 2GB got delivered. We were very happy and wanted to take it for a spin. So I uninstalled the NVIDIA drivers and also used driver sweeper to clean the leftover bits. Even removed the device from device manager. Next I shutdown the PC, took out the GTX 260 and put in the HD6950 2GB. Plugged everything in and then started up the computer. There was no display coming and the LCD's standby led was on. So I turned off everything, reseated the card and switched on the PC. Again the LCD didnt get the signal. But the case fans were working and the HD6950 2GB fan was also spinning and it was exhausting air as its supposed to.
    Seeing as this didnt help, I reset the CMOS, took out the battery unplugged the power cord for 15 mins and then plugged everything in and started the PC. Now the display came on and I was able to go into the BIOS to change settings. I saved the settings and rebooted. The PC went through post and then started loading windows. Its here that we got BSOD and the PC shutdown. Next when we restarted the PC, we got an error just after POST that "header is corrupt". So I again did a CMOS reset and restarted the PC. This time the PC wont even go to the BIOS the screen remains turned on but nothing is displayed. So I did a hard reset and the PC booted up and I decided to reinstall windows. The installation went smoothly and I was able to install all the drivers & softwares. Now here after a restart following the installation of the catalyst driver I again got a BSOD. Thereafter everytime I try to boot, I get a BSOD with a random error code each time just after the windows loading splash screen.
    I thought may be the HD6950 is at fault and decided to check with the GTX 260 as it was working fine. I did a hard reset and installed the GTX 260. PC booted and I successfully installed win 7 again. Now after installing win 7 when the PC restarted I again started having issues as every time at the "windows is loading" screen I got again a random code BSOD. After a few BSODs trying to start the PC I stopped getting display as in the monitor stopped getting signal and went into a standby mode. I gain took everything out did a hard reset, reseated everything and tried to boot. I was able to get into the BIOS this time. I made the changes and saved and restarted. After the restart, the PC turns on, every light turns on, all the fans spin, the GPU fans spin and the monitor turns on but instead of the POST screen I get a blank screen. I have tried everything and nothing is working. If I cant get into BIOS to change settings I cant even install windows 7 again.

    I am at my wits end about this very wierd problem. Dont know whether the HD6950 is to blame here but as the GTX 260 also dint work (where as it was working perfectly previously) I dont know what to think.

    Please guys help out a friend in need.

    TIA and sorry for the long post but it was necessary to make my situation clear.

    Cheers

    devv :)
     
  2. Possibly try the 6950 on another machine just to rule out that it works (or doesn't) same with the 260. Also try a PSU tester see if it works. My pc sometimes gives a similar issue where all fans spin but just a blank screen (mostly from a cold boot), the occasional reboot fixes it though, also I take note of the CPU fan speed, it will start at what sounds like it's highest RPM then after a few seconds goes down to normal, (that's when I know it's working) otherwise it stays in high gear until (with a blank screen) until it's reset.

    You could also try to test each individual component in another machine, RAM, CPU, PSU etc to rule out what's faulty. Good luck, lemme know how it goes :D
     
  3. RTS100x5

    RTS100x5 Member Guru

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    GPU:
    ATI 5870 1GB w 54in Plsma
    If you have eliminated the GPU and PSU as the problem > REINSTALL the motherboard as some short or grounding issue may have been caused by installing new hardware. Also if problems persist I always take the MB out onto a non conductive surface to assist in troubleshooting / this also eliminates the grounding issue as a possible cause....
     
  4. devvfata1ity

    devvfata1ity New Member

    Messages:
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    GPU:
    MSI GTX 260 OC3 896
    I know for a fact that both the GPUs work, I was able to re install windows using both. Ok I will try taking out the motherboard from the case and check.
     

  5. k3vst3r

    k3vst3r Ancient Guru

    Messages:
    3,559
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    100
    GPU:
    KP3090 G9 240Hz
    Motherboard i suspect is the culprit, iirc they can be bug with P67(Seen it on MSI boards so far) motherboards getting stuck at P.O.S.T something do with device ID issues, basically when you install windows it updates device ID held in the bios entry field etc. Anyhow when this happen you often have to get the motherboard replace as resetting bios doesn't help.
     
  6. devvfata1ity

    devvfata1ity New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    MSI GTX 260 OC3 896
    Yesterday I found out that the RAM was faulty and changing it solved everything. I was led to believe that the RAM was fine since it passed memtest for a number of runs. Guys this comes as a warning that although memtest shows your RAM is fine it can still be corrupted.
     

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