Vista Tutorial - Call of Duty 4 Freezes and pixels go strange

Thanks Haney.

I don't play Call of Duty much anymore, and when I do, I haven't got the problem in quite a while.

Just a quick note to all, I overclocked my card while played ArmA: Armed Assault, and the problem occured, so if the problem happens in call of duty 4 again, i'll "underclock". I used a program called 'Vtune.'

Nope. That didn't work.

ok the best way to get to the bottom of this

download and install this

RivaTuner v2.24 download from Guru3D.com

during install you will be asked if you want to install some riva tuner add ons , click YES , these are the signed drivers for vista

run it , under the "main" tab goto the FIRST customise tab (its like a little triangle) click it and you will get a popout list , click the last one it looks like a magnifiying glass

yuo will probably get a popup asking you if yuo want it to automatically install any plugins that will apply to you , click YES

a graph will pop up

at the bottom right click SETUP

under DATA SOURCES put a check (tick left hand side) next to...

core clock\rop domain
core clock\shader domain
memory clock
core temperature
fan duty cycle
sensor supply voltage

uncheck anything else

hit apply then OK

at the bottom of the graph there is a red dot (bottom left) you want to click this to enable background monitoring

you now have on screen everything you need to know about your gpu , now the fun bit

right clcik each graph one by one and clcik SETUP at the bottom there is an on screen display section

put a check in show ....... in on screen display

when you get to the last one before you exit in the on screen display section check the RUN SERVER option

click OK

run the game , you'll find all this info core clock speed , memory speed core temp etc magically appear in the top left of your gaming screen

you can then see EXACTLY what your gpu is doing , how hot its getting , if the voltage is dropping too low if its underclocking , what speed your gpu fan is doing etc

you can troubleshoot your issue from there

yuo can also set the size colour and position of the onscreen display , but im bu88ered if im going into all that now

Okay, with this info at the top, how can I use it to know what's not going good and what's not?

Also, I didn't have options for

fan duty cycle
sensor supply voltage

Thanks a lot for your help mate.

does your gpu have FAN? also it seems yuor mobo doesnt support voltage reading from that sensor , never mind

run the game for a while let us know what your core temp gets to and make sure your core clock and memory clock stay constant

No, no fan.

Here are the results I came up with.

Just after launching game:
GPU 540MHz, 1350MHz, 56 degrees
MEM: 391.5 MHz
43.5

When the screen froze and pixels were disordered:
GPU 540MHz, 1350MHz, 76 degrees
MEM: 391.5 MHz
87.5

So, what can you make with these results?

well..........your core certainly isnt overheating and your gpu isnt downclocking itself (this can happen if the ram is clocked too high)

it cant tell us unfortunately if your ram (onboard video ram) is failing which i think may be the issue

can you clock back your ram by say 100mhz (underclock it i mean) and try again just as an experiment

is the rest of your rig at stock speeds? cpu , ram?

have you tried older drivers?

Yes, I have tried older drivers.
I have also tried downclocking my RAM [even SAFEMODE clocking my graphics card (core clock, memory clock and shader clock)].

It HAS TO BE software related... it doesn't happen on XP. This is very strange!

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