I recently purchased a Dell Inspiron 17r which includes the Nvidia GeForce 650m video card.
I have a strange problem with the cards ability to go into its turbo mode.
In gpuz, the frequency is read 745mhz with 825 turbo.
The problem is, the card never reaches its turbo frequency unless:
I hard reset the laptop by turning off, unplug the battery and power then plug back in again.
Also, if I update the motherboard bios, turbo works again until another reboot later.
I've been in contact with Dell about this matter and I'm sure they are trying to get rid of me by mentioning they don't endorse any 3rd party monitoring apps. But clearly this is a fault of the card/bios of the card because otherwise the turbo frequency wouldn't show, nor would it run at all.
I've tried overclocking apps like afterburner and Nvidia tools, but they seem to only overclock the turbo frequency my card can't reach anyway.
The Nvidia website quotes the core speed as 700 to 900mhz.
Do I have a case with Dell about this or am I without rights?
Thanks for any help you can give!.