Overclocking Sony Vaio Radeon

Catalyst

OK...Hoping for some help, I know I should not be trying to OC a laptop especially when there is no way of monitoring the temp of the Graphics card but curiosity got to me ok here goes, first the full spec in case it makes a difference

Sony Vaio GRX616MP
Mobility P4 2.0Ghz
FSB @ 400Mhz
512 Mb DDR 2100 RAM at 266Mhz CL2.5
Mobility Radeon 7500 32Mb with Plutonium XP 8.1 Driver
YAMAHA AC-XG Audio
40 Gb 4200rpm HD
16.1" UXGA 1600X1200 Native
CD/DVD-RW
Conexant-Ambit SoftK56 Data,Fax ICH Modem
Intel(R) PRO/100 VE NIC
WiFi+Fingerprint authentication PCMCIA
3 USB
XP Pro


Memory Clock 165.38 MHz
Engine Clock 261 MHz
3DMark Score was 5068

after clocking to
Memory Clock 200 MHz
Engine Clock 300 MHz
3DMark Score was 5687

Clocked using Plutonium XP 8.1 with no artifacts, question is should I go higher? Remeber, I have no way of telling the temp on the Grahics chip.

Any suggestion?

BabyEater

You could try for higher but just let it run a few hours of 3DMark to make sure it doesn't overheat. I doubt you will fry it as it will start to artifact before it die's.So i wouldn't worry about temps just once its stable to run for a couple of hours. The only thing you might do with having it run at too high of temperatures is shortening the lifespan by a while

Catalyst

OK raised it to
mem 210
engine 310

and while running 3Dmark, there were these black/grey pixels appearing, I guess those are artifacts? Does that mean the setting is too high? what causes these artifacts?

Matt Simis

Typically overheating or lack of voltage cause visual errors. If it totally overheats it would simply lock up.

200 and 300 are pretty good speeds to stick to I imagine.

Bear in mind that overclockers on Desktops rarely can tell what temps their GFX cards are at either!


Matt