First post, by Der_Richter
Hi guys.
So, i found a spare GT760 NVidia card around in the shop, so i thought why not put it in with some hacked up XP era components (Athlon 64 x2). My XP-expertise is not up to speed compared to the earlier stuff, but i was looking to do something balanced and nice for 2001-2004 gaming. And in theory this works fine, the machine installs and boots fine. It also has drivers for the GT760 compatible with XP from NVidia, so everything is fine so far. However, upon launching a game i realize that as soon as gameplay starts, the GT760 thinks it's underutilized and goes to pstate1 i.e. power saving. So my framerate gets cut from 160 to 31 frames per second, playing Vietcong for instance. This then remains.
Looking into it, i then realize that NVidia does not provide support for the "prefer maximum performance" cp option in XP drivers. Nor does the OS seem to support manual control of the pstates. Not Afterburner nor Precision can lock the clocks under XP, but they can on Win7.
Also tried Inspector, and while i can then set the driver flag for the option to enable, it does nothing in XP... Still downclocks as soon as i start playing and the framerate drops. Utilization is just 21% or so in my test game, so likely that is the reason for underclocking but then the whole render pipeline gets stalled anyway as the card runs at 2d speeds and framerate tanks.
Is there a way to work this out? DOES XP actually lack support for manual power options, and are incapable of handling modern cards with pstates? I don't remember as it was a long time ago since i ran something that modern in XP... If so, how can i fix it? Any suggestions?
Preserver, refurbisher, collector. In that order.
