Hi Guys,
This is a long saga that I'm finally revisiting, so kudos to anyone who can get through the description below. I've tried to make it short and more readable.
Specs:
Motherboard: Gigabyte GA-990FXA-UD3
CPU: AMD FX-6200 Zambezi 3.8GHz Socket AM3+ 125W Six-Core
Video card: ATI 100-505606 FirePro V4800 1GB GDDR5 PCI Express 2.0 x16
Memory: CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
PSU: SeaSonic X750 Gold 750W ATX12V V2.3/EPS 12V V2.91 SLI Ready 80 PLUS GOLD Certified Full Modular Active PFC
HD: 500 GB Western Digital Caviar Blue
Case: Lian Li Lancool PC-K62
Six months ago, I built a new computer. POSTed fine. Installed Windows 7 fine. The problem started when I stuck a USB thumb drive in the front USB port of the case to install updated drivers. I immediately got the BSOD.
After that, each install attempt of Windows 7 would either hang at install, or gives me the BSOD. I've tried two OEM versions of Windows 7, and three fresh hard drives. Sometimes I reformatted the HDs (long reformat, not short).
So, here's what I did back then, on advice from this forum...
Disconnected front case ports from MB. Disabled USB 2.0 and 3.0 support in BIOS, switched to a PS/2 keyboard, no mouse. No help.
Ran Memtest overnight. RAM was fine, no errors.
Reset CMOS, loaded Optimal BIOS defaults. No help.
Booted into Safe Mode during Win 7 install to get to Device Manager and disable video drivers. No help.
Q-flashed BIOS from version F5 to version F9. Still got BSOD on Windows 7 install. Generally it was an APC_INDEX_MISMATCH but sometimes other things.
Switched the video cable to pure DVI-to-DVI connections. Loaded BIOS Failsafe defaults, reformatted HD, switched all IDE settings to SATA in BIOS. That made things worse. Changed BIOS back to Optimized defaults.
Tried installing XP, since that worked once… then Windows 7. Finally even XP would not install.
Gave up for a few months.
And today, here's where I am... I thought, okay, I'll put in totally new 1333 RAM, instead of 1600 RAM, since APC_INDEX_MISMATCH is often a RAM problem. But forget it, because:
1) I cannot even Q-Flash the BIOS because the BIOS doesn't recognize any of the (many) USB ports on the back of the MB. It only sees a Floppy, sometimes two floppies, with garbage characters in the directories. Clearing CMOS doesn't change BIOS version either. Neither does removing the battery.
2) I can no longer reformat the HD. I insert the Windows 7 disk, boot from CD/DVD, it says "Windows is loading files," then the Windows 7 logo appears, then the BSOD. I even completely disconnected the HD and it does the same thing. No longer getting APC_INDEX_MISMATCH... now it's just the basic Stop Error.
Have I finally fried my MB by trying to clear the CMOS? I was so psyched about this MB, and have no more money to waste on HDs or RAM or especially Gigabyte Zambezi motherboards. Very sad!
Thanks for any brilliant thoughts,
Heather
This is a long saga that I'm finally revisiting, so kudos to anyone who can get through the description below. I've tried to make it short and more readable.
Specs:
Motherboard: Gigabyte GA-990FXA-UD3
CPU: AMD FX-6200 Zambezi 3.8GHz Socket AM3+ 125W Six-Core
Video card: ATI 100-505606 FirePro V4800 1GB GDDR5 PCI Express 2.0 x16
Memory: CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
PSU: SeaSonic X750 Gold 750W ATX12V V2.3/EPS 12V V2.91 SLI Ready 80 PLUS GOLD Certified Full Modular Active PFC
HD: 500 GB Western Digital Caviar Blue
Case: Lian Li Lancool PC-K62
Six months ago, I built a new computer. POSTed fine. Installed Windows 7 fine. The problem started when I stuck a USB thumb drive in the front USB port of the case to install updated drivers. I immediately got the BSOD.
After that, each install attempt of Windows 7 would either hang at install, or gives me the BSOD. I've tried two OEM versions of Windows 7, and three fresh hard drives. Sometimes I reformatted the HDs (long reformat, not short).
So, here's what I did back then, on advice from this forum...
Disconnected front case ports from MB. Disabled USB 2.0 and 3.0 support in BIOS, switched to a PS/2 keyboard, no mouse. No help.
Ran Memtest overnight. RAM was fine, no errors.
Reset CMOS, loaded Optimal BIOS defaults. No help.
Booted into Safe Mode during Win 7 install to get to Device Manager and disable video drivers. No help.
Q-flashed BIOS from version F5 to version F9. Still got BSOD on Windows 7 install. Generally it was an APC_INDEX_MISMATCH but sometimes other things.
Switched the video cable to pure DVI-to-DVI connections. Loaded BIOS Failsafe defaults, reformatted HD, switched all IDE settings to SATA in BIOS. That made things worse. Changed BIOS back to Optimized defaults.
Tried installing XP, since that worked once… then Windows 7. Finally even XP would not install.
Gave up for a few months.
And today, here's where I am... I thought, okay, I'll put in totally new 1333 RAM, instead of 1600 RAM, since APC_INDEX_MISMATCH is often a RAM problem. But forget it, because:
1) I cannot even Q-Flash the BIOS because the BIOS doesn't recognize any of the (many) USB ports on the back of the MB. It only sees a Floppy, sometimes two floppies, with garbage characters in the directories. Clearing CMOS doesn't change BIOS version either. Neither does removing the battery.
2) I can no longer reformat the HD. I insert the Windows 7 disk, boot from CD/DVD, it says "Windows is loading files," then the Windows 7 logo appears, then the BSOD. I even completely disconnected the HD and it does the same thing. No longer getting APC_INDEX_MISMATCH... now it's just the basic Stop Error.
Have I finally fried my MB by trying to clear the CMOS? I was so psyched about this MB, and have no more money to waste on HDs or RAM or especially Gigabyte Zambezi motherboards. Very sad!
Thanks for any brilliant thoughts,
Heather