P4G8X Deluxe and Powercolor ATI 9800pro

[Michael Murfitt]

Hi
I recently bought a Powercolor ATI Radeon 9800Pro graphics card. This card
is an AGP8X card, I am running an ASUS P4G8X Deluxe M/B which is an AGP8X
M/B. Why do my games lock up if I have my machine set at AGP8X?, if I run
the machine at AGP4X everything runs fine.

System spec
P4G8X Deluxe
P4 2.53
1 Gb memory running Dual channel
60gig HD
Win XP pro SP1 ( updates up to date)
ATI Catalyst 3.9 (problem is not driver dependant)

Michael Murfitt

 

[Paul]

Hi
I recently bought a Powercolor ATI Radeon 9800Pro graphics card. This card
is an AGP8X card, I am running an ASUS P4G8X Deluxe M/B which is an AGP8X
M/B. Why do my games lock up if I have my machine set at AGP8X?, if I run
the machine at AGP4X everything runs fine.

System spec
P4G8X Deluxe
P4 2.53
1 Gb memory running Dual channel
60gig HD
Win XP pro SP1 ( updates up to date)
ATI Catalyst 3.9 (problem is not driver dependant)

Michael Murfitt

Have you tried modifying the AGP voltage ? Whether running at 4X or 8X,
the VDDQ I/O voltage is nominally 1.5 volts. The signals themselves only
swing 0.8 volts at the 8X rate, but the supply is still 1.5 volts.

What you can try, is setting the AGP voltage to 1.6 or 1.7 volts. Sometimes
a change like this is enough to make the timing work.

If the board had drive strength settings, I'd recommend changing those,
but it doesn't have any.

HTH,
Paul

 

[LeeBos]

Subject: Re: P4G8X Deluxe and Powercolor ATI 9800pro

From: (e-mail address removed) (Paul)
Date: 12/9/2003 2:40 AM Eastern Standard Time
Message-id: <[email protected]>



Have you tried modifying the AGP voltage ? Whether running at 4X or 8X,
the VDDQ I/O voltage is nominally 1.5 volts. The signals themselves only
swing 0.8 volts at the 8X rate, but the supply is still 1.5 volts.

What you can try, is setting the AGP voltage to 1.6 or 1.7 volts. Sometimes
a change like this is enough to make the timing work.

If the board had drive strength settings, I'd recommend changing those,
but it doesn't have any.

HTH,
Paul

It's a problem with the Intel 7205 chipset. Turn off AGP fast writes and 8X may
work.

 

[Buzby]

On Tue, 09 Dec 2003 02:40:30 -0500, (e-mail address removed) (Paul) wrote:

Turn Off FASTWRITES within the drivers, I have this mobo & a
Rad9700Pro & have had no problems since I did this....

Cheers Shultz.