Forsa GeForce 9800GT-'ve worked with current drivers
Recently came across an interesting video card - Forsa GeForce 9800GT 512mb.
The Ugly Duckling.
Map immediately stood out from the "gray mass" card G92-270:
-When using the native firmware artefachit in the BIOS but stable in Windows and games (maybe this is a feature specific instance)
-GPU-Z and other programs show the presence of 128 stream processors, with G92-270 of 112
-marirovka erased nail on the GPU
-operating voltage on the GPU 1,25 v - decently too high, and can not be adjusted via firmware
-Well, the main "chip" - the inability to work with the newer drivers ForceWare 177.xx
The problem is that after a fresh install of firewood adapters offer to work in the mode of 800x600 16bit. All other settings can not be established to create a custom resolution through the panel fails NV, PowerStrip does not help.
Google helped find dozens of complaints happy owners, and no sensible answer. So will have to solve the problem himself - of such happiness I never dreamed of.
Learn to swim.
First of all, I tried to pick up a third-party firmware may be a problem with it. It was possible to pick up a few, I settled on the version for nereferensa Gigabyte 8800gt (this firmware is designed for memory Hynix hy5rs123235b, the same as on the Forsa). Firmware eliminated the artifacts in the BIOS, but the main problem is not decided yet.
The next stage was to analyze and compare nv_disp.inf installation files and registry entries for the current version 177.79 and 295.73. I compared line by line, trying first of all to identify the version 177.79 in those parameters that are not in 295.73 and then finished writing them in the registry. After many hours of searching and failed attempts to desired setting has been found. There are 2 ways to solve the problem: you edit the registry or editing nv_disp.inf
Edit the registry
It makes sense to edit the registry after installing the drivers. In the registry settings of my card at the following address, it may be slightly different in other systems:
at this location add a DWORD value named EsGpuForceMode8x6 and leave the default value - 0. After rebooting, you can select the desired resolution.
Edit nv_disp.inf (updated)
Obviously, the setup file to be edited to install the driver. After editing the Windows begins to swear on the unsigned drivers when installing them - this is normal. Unfortunately from release to release the names of the sections and structure of the inf file is changed, I present options for version 310.90
So, open nv_disp.inf notepad. We are looking for section [nv_commonBase_addreg__01] and enter the string back
HKR,, EsGpuForceMode8x6,% REG_DWORD%, 0
In other versions of the drivers desired section can be in the form [nv_commonBase_addreg__nn] where nn is equal to 01,02,03 etc.
Admire the result.
Ps for this article I planned to do hardvoltmod with the corresponding acceleration. However, as it turned out, the voltage on the GPU is 1.25 V , at which the stable overclock - only 650MHz on the core. Most likely a bad copy and overvoltage it will not help. We are waiting for a suitable test subject and a new note.
