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Overclock GT540M problem

post #1 of 4
Thread Starter 
Hello, i tried oc this card but when i overclock it its unstable in games... temperatures are fine... 70-80°C but it crashed every time.... please can you give me some advice what to do?? Ye by the way i overclocked it via Nvidia system tools
Edited by Misacek - 10/27/11 at 2:26am
post #2 of 4
Laptop GPUs are not meant to be OCed. Do not do it. You will just burn out your laptop faster.
    
CPUMotherboardGraphicsRAM
i5 6500 @ stock MSI H110i Pro AC Asus GTX 1070 Gaming Strix OC 16Gb DDR4 Corsair Vengeance 
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CPUMotherboardGraphicsRAM
i5 6500 @ stock MSI H110i Pro AC Asus GTX 1070 Gaming Strix OC 16Gb DDR4 Corsair Vengeance 
Hard DriveHard DriveCoolingOS
1Tb Hitachi 5400RPM 2.5" HDD Intel 540s 240Gb SSD Noctua L9i Windows 10 Home Premium 
MonitorKeyboardPowerCase
PX2370 Filco Ninja Brown Switches Silverstone 500W SFX-L Gold Silverstone RVZ02 (Non-Windowed) 
MouseAudio
Razer DeathAdder Chroma Bose Companion II 
  hide details  
Reply
post #3 of 4
Thread Starter 
but temperatures was almost same... -.- ok then
post #4 of 4
I've got my 420m overclocked to 740MHz, stock is 500Mhz. I believe I'm going from a 420m to 540m in core clocks. I have yet to run into a problem. What I cannot do is overclock the vid memory. Either the vid memory isn't cooled or it's bad for the chip/motherboard. I had it overclocked from stock 800Mhz to 900Mhz which is the speed of a 540m and it degraded the video memory. I cannot overclock the video memory anymore. I'll get a ton of errors in OCCT.

With my cooling pad I'll hit 70C in BF3 with the gpu overclocked 48% over stock clocks.
Try to use OCCT and figure out if its vid memory or core clock. Run the mem test if you can.
You should be able to at least get 740Mhz. Try MSI afterburner and EVGA precision. Whats odd is Afterburner lets me clock to 650Mhz max, EVGA precision lets me clock to 800Mhz on the core.

I personally like OCCT for testing my laptop. Desktop, maybe not so much since I overvolt.

Hope that helps
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