thank you so much for your help. So im going to give you as much info on this as possible, then it might be a bit more clear.
I am currently suffering from the deadly freeze, basically my desktop is freezing on or just after startup. I have also suffered from a freeze where it has disconnected the monitor to a black screen but the desktop is still on. I have listed below the components of my computer:
Motherboard: EVGA 780i SLI
Graphics Card: EVGA 9800 GX2
CPU - Intel Core 2 Quad CPU Q8300
Ram: OCZ Gold Edition 4GB (2x2GB) DDR2 PC2-8500C5 Dual Channe
I have a Akasa AK-CCX-4002HP Venom CPU Cooler on myCpu
Only 1 onboard Hard drive (use external hardrive's):Samsung SpinPoint F1 500GB SATA-II 16MB Cache
1200kw Akasa power supply
I have 2x 120mm fans, one located bottom front, other fan is top BAck
large Akasa Cooling Case
Sound Blaster Sound Card
I have not seen any spiking in temperatures of my cpu or graphics card so i'm hoping its not an overheating issue. i had previously when first setting up my computer overclocked slightly my ram. I have tried operating the computer with the side panel off but makes no difference.
i tired increasing voltage to ram, i boosted it up to 2.1V and tried 2.2, no difference, i also tested both ram sitcks individually for over 20 passes each and had no error reports.
The freezing had only just started, 2 days ago, now it wont boot past the windows logo. I have since then tried foramating my hardrive and reinstalling a fresh copy of windows 7.
Tried reinstalling windows and everytime its installed and goes tore boot it just freezes in exactly the same spot, everytime. Tried installing using only 1 ram stick at a time, tried each ram stick and tried a fresh install, freezes in exactly the same point after install when the computer reboots. After install it reboots, then i get a black screen with a flashing cursor. The cursor continues to flash but nothing happens.
I hope you can help, really appreciate it.
Cheers
Mike