Is worth buy a 4Mb PCI VideoCard for increase performance of pcchips 755mlr ??

[baleiro]

I have a PCChips 755Mlr in my office with PIII 750 / 192MbRam.

Is worth buy a 4Mb PCI VideoCard for increase performance from this system ???

Sorry my english !!

 

[Boonesmi]

the 4mb pci card probably wont help you much if any. if you want to get away from the integrated graphics you might want to get a good pci card (im assuming your board doesnt have an agp slot? maybe it does)

gforce2mx has a pci version.

 

[Peter]

Certainly not, for two reasons:

* Those old 4 MB PCI VGA cards perform even worse than today's shared-memory VGA chipsets.

* The integrated VGA doesn't disable when you add another one. You'll just get an extra head, but the RAM bandwidth for the CPU isn't increased.

755LMR is built from SiS 630E chipset. Make sure you run the RAM bus as fast as possible (the 630E allows it to be clocked faster than your CPU bus), and use SiS' latest drivers. Earlier drivers are noticeably slower.

And keep in mind, while their 3D math engines are pretty good, all those shared-memory VGA solutions are very bandwidth limited, so if you want to play 3D games, play in a low resolution.

regards, Peter

 

[Rafael]

Yeah I agree with Boonesmi and Peter.
Need a better card than a 4 Mb PCI.
But this might help you if you are going to put a video card on ur system.
I put once on my friends system a video card, and what Peter said really happens. You cant disable de VGA.
But my friends system was a M598 and it worked. If you put the memory on DIMM1 the memory will be shared with the video on board. But if you stick ur memory on DIMM2 it will not be shared. And setup the BIOS to search primary graphics adapter from AGP to PCI, and also adjust ASSING IRQ for VGA.
Peter you think that might work? If anyone try this please let me know the results.

 

[Peter]

Well maybe that nothing-in-DIMM1-slot trick works here too (after all, I invented it for the 598 ) - the SiS 630 VGA engine also can only run off memory row 0 (i.e. DIMM1), if there's nothing there, it can't run.

Whether or not the board's BIOS allows that is another thing.

If you have both VGAs active, then BIOS allows you to alter the search order so you can either make your card the primary display or the integrated VGA.

regards, Peter

 

[Rafael]

HHmmm I see Peter!
Thnx!

Raf