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Help With Radeon 4500

post #1 of 8
Thread Starter 
I have a Radeon 4500 and it has a default of 600 mhz un-overclocked. I can get it to 650 mhz and the memory to 450 mhz on catalyst control center with no problem and it greatly increased the performance on the game I am using to test my overclocking (Black Ops) and I have pushed it to (I believe) 700 mhz on the card and 430 mhz memory using RivaTuner. This ALMOST is enough to run Black Ops on 1600x900 without lag but not quite. I wanted to push it so I could run it without lag. I put it to 720 mhz on the card and 450 mhz memory and this still had some minor lag, and I couldn't make it a whole round before the screen turned into lines and I had to reboot. Eventually I wanted to see if I could even start to run Black Ops at all using 750 mhz on card and 500 mhz memory and it just gave me the lines instantly when I got into a match all three times I tried.

Some more info:
Core Temp at 750 mhz while computer is on idle: 41 Celsius
I have a fan the size of my computer blowing air in to keep it at such a low temp (the average temp is 60 Celsius on idle without overclocking [at 600 mhz on card and 400 mhz memory])

My question here I suppose is why does it die when I am keeping it that cool.

P.S. There is a blue zone (safe zone I suppose) on RivaTuner. The highest I can theoretically go in there is 750 mhz on card and 450 mhz memory, although it still instantly gives me the lines and shuts off display when I join a Black Ops match.

One more thing: I feel like a bum for signing up here and I am already asking for help so sorry if that seems rude but I would like to clock this to 810 mhz on card and at least 475 mhz memory so that I amy possibly run Black Ops lag-free on 1600x900. Thanks for reading and I hope you can help biggrin.gif
post #2 of 8
There are other factors besides the core and memory clock that affect gameplay. The 4550 is a very modest card and, in all honesty, probably isn't going to be strong enough to play Black-Ops satisfactorily no matter how much you overclock it.

Black-Ops has its own set of problems when it comes to gameplay. Newer cards had problems early on and it received a patch because of this. My 8800gt and 4770 both give me 30-65 fps and I'm looking to upgrade those.

EDIT** also if you could fill out your sig rig that would give other members a good idea of what other components you have and how they affect performance.
post #3 of 8
Thread Starter 
It is a modest card indeed. I only got it to cover my integrated one and it isn't bad for any of the games I play other than Black Ops. But here are my specs:
CPU: AMD Athlon II X4 620 (2.6 ghz)
RAM: 6GB
OS: Windows 7 Ultimate 64 Bit
GPU: Self explanatory tongue.gif
I believe that is all that will need to be known.
post #4 of 8
Thread Starter 
What I don't understand is why it instantly gives me the lined screen requiring a reboot when I am still in the blue.
post #5 of 8
That's a decent rig, obviously the weakest link is the card. Just to clarify, are you looking to play only campaign or also online?
post #6 of 8
it looks like its running out of VRAM or it is overheating. This used to happened to my 8800 GTS when I was playing GTA IV
post #7 of 8
Thread Starter 
I am only using the current free weekend. Another game I have that is mega GPU intense is Borderlands so I can use that for testing. Although borderlands on PC is so bad with GameSpy and so many compatibility issues.
post #8 of 8
Thread Starter 
Quote:
Originally Posted by .Cerberus;13759887 
it looks like its running out of VRAM or it is overheating. This used to happened to my 8800 GTS when I was playing GTA IV

So what your saying is lower the memory portion and it may survive? But the overheating is unlikely as I don't think it would give me lines until 100 Celsius. How would it jump from 41 to 100?
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