I've been having issues for quite some time now and tried everything I can think of....
System specs first.....All components are about 3 years old.
SYSTEM SPECS:
cpu = AMD Phenom II X4 955
mobo = Gigabyte MA790XT-UD4P
RAM = 8GB (4x2GB)
video card = nvidia 9800GT (replaced with GTX 550 ti)
sound card = HT Omega Claro
psu = Corsair 550W G24F264096-4N
secondary psu = FSP Group BoosterX5 450W (powers only the video card)
HDD1 = 160GB WD Caviar Blue
HDD2 = 1TB WD Caviar Black
HDD3 = 1TB Seagate Barracuda ST31000524AS
HDD4 = 1TB Fantom Drives Green Drive (External via eSATA)
Occurrences near beginning of problems, but may be unrelated: auto-updated nvidia drivers, and replaced a failed HDD (160GB WD) with a new one (1TB Seagate)
Graphics freezed initially (after auto-updating), so i rolled back my graphics driver, and everything seemed to work for another week or so until.........
SYMPTOMS:
Monitors would display "glitches" (either green or magenta pixels in wild arrangements) and the screen would freeze, seemingly when under a heavy graphics load. For example, when loading modern warfare 3, everything would work fine through the menus and the lobbies, but when a game round would actually start, the problem stated above would happen almost instantly. Now, after a number of fix attempts, the "gliches" no longer happen, but the freezes do. Audio always continues unaffected.
Alternatively, sometimes the monitors shut off as if there is no input (same circumstances). These two issues (monitors either freezing or shutting off) is the vast bulk of the problem. Either of the two will occur: always when under 3d graphics load; most of the time when playing videos and such online; and occasionally at random times.
Furthermore, these freezes have began occurring at all various points during system startup.
Two or three random BSODs during startup and normal use
One time there was an error I had never seen before, and unfortunately didn't right down the details. It occurred right after I turned my computer on. Something about the BIOS failing to initialize.... scary.... but that only happened once.
FIX ATTEMPTS:
Tried every driver available from nvidia as well as legacy drivers found elsewhere online. UNSUCCESSFUL.
Full antivirus and malware scans. UNSUCCESSFUL.
Verified cool temps with speedfan, but reattached gpu fan anyway to be sure. UNSUCCESSFUL.
Cleaned out case. UNSUCCESSFUL.
Swapped power connections. UNSUCCESSFUL.
Unplugged unnecessary components such as additional hard drives, dvd drives, extra fans, and lights. UNSUCCESSFUL.
Removed 4GB RAM. UNSUCCESSFUL.
CHKDSK on all drives. UNSUCCESSFUL.
Driversweeper and reinstall drivers. UNSUCCESSFUL.
MSCONFIG disable unnecessary items. UNSUCCESSFUL.
Uninstall software I wasn't using. UNSUCCESSFUL.
Reinstall java, flash, directX, Visual C++ redist. UNSUCCESSFUL.
Tried repeating most scans and reinstalls while in safe mode. UNSUCCESSFUL.
Purchase new video card (replace 9800GT with GTX550ti) UNSUCCESSFUL.
Note: I pulled an old video card (8500 GT) out of another computer before I had decided to purchase a new one. This card ran modern warfare 3 fine; there were no freezes. This is why I thought I just needed to buy a new one. (the only other difference this card had was that it only had one DVI port whereas I am running two on both the 9800 and the 550)
"NEW" SYMPTOMS:
I wiped out my sound drivers too while driversweeping. Then, the drivers wouldn't load back in and I had no sound. I finally got it working again at one point, but then after a while I lost sound again and it said that no device was plugged in. Now some generic devices appear in "playback" but they all say "not plugged in"
Now for no apparent reason only one of my two displays starts up... cant get the other to turn on at all.
Drivers sometimes do not load properly, sometimes it will only install a "generic vga adapter" when I try and let windows find drivers itself.
SPECULATIONS:
Power Supply Failure: this i was considering because of the freezes and lockups while under load, but now the other problems suggest this is probably unlikely.
Mobo Failure: the new video card is having basically the same problems (although without the screen "glitches") and the fact that the sound card is not being recognized. Onboard LAN also went out, but that was well over a year ago. I'm not exactly sure what typically would occur during a mobo failure, so i'm just speculating.
Virus/Malware: At one point, both malwarebytes anti-malware and MS security essentials seemed to be uninstalled from my system without my doing so.... but, every scan I do comes up clean.
Driver Problems: It began here, so it probably has a great deal to do with it, even though i think I've tried just about everything.
....I think that's everything. I'd much appreciate any help. I'm totally stuck.
System specs first.....All components are about 3 years old.
SYSTEM SPECS:
cpu = AMD Phenom II X4 955
mobo = Gigabyte MA790XT-UD4P
RAM = 8GB (4x2GB)
video card = nvidia 9800GT (replaced with GTX 550 ti)
sound card = HT Omega Claro
psu = Corsair 550W G24F264096-4N
secondary psu = FSP Group BoosterX5 450W (powers only the video card)
HDD1 = 160GB WD Caviar Blue
HDD2 = 1TB WD Caviar Black
HDD3 = 1TB Seagate Barracuda ST31000524AS
HDD4 = 1TB Fantom Drives Green Drive (External via eSATA)
Occurrences near beginning of problems, but may be unrelated: auto-updated nvidia drivers, and replaced a failed HDD (160GB WD) with a new one (1TB Seagate)
Graphics freezed initially (after auto-updating), so i rolled back my graphics driver, and everything seemed to work for another week or so until.........
SYMPTOMS:
Monitors would display "glitches" (either green or magenta pixels in wild arrangements) and the screen would freeze, seemingly when under a heavy graphics load. For example, when loading modern warfare 3, everything would work fine through the menus and the lobbies, but when a game round would actually start, the problem stated above would happen almost instantly. Now, after a number of fix attempts, the "gliches" no longer happen, but the freezes do. Audio always continues unaffected.
Alternatively, sometimes the monitors shut off as if there is no input (same circumstances). These two issues (monitors either freezing or shutting off) is the vast bulk of the problem. Either of the two will occur: always when under 3d graphics load; most of the time when playing videos and such online; and occasionally at random times.
Furthermore, these freezes have began occurring at all various points during system startup.
Two or three random BSODs during startup and normal use
One time there was an error I had never seen before, and unfortunately didn't right down the details. It occurred right after I turned my computer on. Something about the BIOS failing to initialize.... scary.... but that only happened once.
FIX ATTEMPTS:
Tried every driver available from nvidia as well as legacy drivers found elsewhere online. UNSUCCESSFUL.
Full antivirus and malware scans. UNSUCCESSFUL.
Verified cool temps with speedfan, but reattached gpu fan anyway to be sure. UNSUCCESSFUL.
Cleaned out case. UNSUCCESSFUL.
Swapped power connections. UNSUCCESSFUL.
Unplugged unnecessary components such as additional hard drives, dvd drives, extra fans, and lights. UNSUCCESSFUL.
Removed 4GB RAM. UNSUCCESSFUL.
CHKDSK on all drives. UNSUCCESSFUL.
Driversweeper and reinstall drivers. UNSUCCESSFUL.
MSCONFIG disable unnecessary items. UNSUCCESSFUL.
Uninstall software I wasn't using. UNSUCCESSFUL.
Reinstall java, flash, directX, Visual C++ redist. UNSUCCESSFUL.
Tried repeating most scans and reinstalls while in safe mode. UNSUCCESSFUL.
Purchase new video card (replace 9800GT with GTX550ti) UNSUCCESSFUL.
Note: I pulled an old video card (8500 GT) out of another computer before I had decided to purchase a new one. This card ran modern warfare 3 fine; there were no freezes. This is why I thought I just needed to buy a new one. (the only other difference this card had was that it only had one DVI port whereas I am running two on both the 9800 and the 550)
"NEW" SYMPTOMS:
I wiped out my sound drivers too while driversweeping. Then, the drivers wouldn't load back in and I had no sound. I finally got it working again at one point, but then after a while I lost sound again and it said that no device was plugged in. Now some generic devices appear in "playback" but they all say "not plugged in"
Now for no apparent reason only one of my two displays starts up... cant get the other to turn on at all.
Drivers sometimes do not load properly, sometimes it will only install a "generic vga adapter" when I try and let windows find drivers itself.
SPECULATIONS:
Power Supply Failure: this i was considering because of the freezes and lockups while under load, but now the other problems suggest this is probably unlikely.
Mobo Failure: the new video card is having basically the same problems (although without the screen "glitches") and the fact that the sound card is not being recognized. Onboard LAN also went out, but that was well over a year ago. I'm not exactly sure what typically would occur during a mobo failure, so i'm just speculating.
Virus/Malware: At one point, both malwarebytes anti-malware and MS security essentials seemed to be uninstalled from my system without my doing so.... but, every scan I do comes up clean.
Driver Problems: It began here, so it probably has a great deal to do with it, even though i think I've tried just about everything.
....I think that's everything. I'd much appreciate any help. I'm totally stuck.