Problems enabling AGP 4x

Kaiser__Sose

Golden Member
Oct 14, 1999
1,660
0
0
can't get AGP 4x enabled ...
i installed the new via drivers and have it enabled under the bios but 3d mark reports that i have agp 2x enabled..

the mobo is a cuv-4x and the vid card is a geforce 2 ti 200...

 

Deeko

Lifer
Jun 16, 2000
30,213
12
81
Eh don't worry about it. AGP4x doesn't exacrtly give you huge performance gains.
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
81
Have you installed the latest chipset drivers? I'm not sure which cuv-4x you have; there's several listed on Asus' website; plus their Search feature is not working at all.
 

AnAndAustin

Platinum Member
Apr 15, 2002
2,112
0
0
;) Hey, try these out:

If it's your only PC of course you can try to ensure it's not down to faulty hw, sw, corruption, viruses etc. Having the latest OFFICIAL drivers and BIOS' is always a good idea (be sure to check manu and chipset websites).

Check your BIOS settings, disabling 'PCI Master Read Cache' is VERY waise as it kills your L2 cache to give the PCI a 1% boost! Esp bad for Celerons and Durons. Be careful to note any changes you make in the BIOS settings, if they don't help, change them back. Setting AGP1x (ie disabling AGP4x in BIOS) will hit perf, but not as badly as it sounds. The gfx card will continue to run at full speed it just limits the speed out of the AGP slot to 66mhz instead of 266mhz, not too bad in the short term.

If you're running an older OS ensure you have DX8.1. You may need to run DXDIAG, Diplay Tab, DISABLE Direct3D Accel & CLOSE the app. RERUN DXDIAG & ENABLE Direct3D Accel. A click of the TEST button will show if this solves your partic prob.

Leave the PCI slot next to the AGP alone, maybe try swapping your PCI devices through different slots, it's a good idea to have the PCI blanking plates at the back removed for ventilation anyway.

You could try disabling 'PnP OS' from the BIOS if you're using WinXP, apparently WinXP likes to do things itself. If you use any OS then perhaps setting PnP manually (reserving some resources) or resetting the PnP may also help. If you do change any BIOS settings, do make a note so they can be changed back if it doesn't help.

Try downloading NVMax. It has the infinite loop fix and other things for nvidia cards. http://www.nvmax.com/ http://www.charnleys.co.uk/NVmax4.exe

Try different driver versions, with some cards 21.83, 23.11, 27.xx, 29.xx can help.
 

irwincur

Golden Member
Jul 8, 2002
1,899
0
0
Good luck with this problem, I tried for almost a year to get my VIA chipset to run my ATI8500 to run at 4x. Finally moved on the Sis and it works flawlessly.
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,005
126
Make sure to install the VGA portion of the 4-in-1s in "turbo" mode. Also make sure you have the latest BIOS your motherboard.