Radeon Graphics and Asus motherboard

[Bob50]

Recently purchased a Radeon 9700 Pro graphics card. Installed it on my Asus P4PE motherboard with Windows XP Pro operating system. Upon trying to power up my motherboard a red light activated saying I was trying to install a 3.3v graphics card in a 1.5v AGP slot. What am I doing wrong. Thanks Bob

[Wizzard~Of~Ozz]

Question :

My P4B ran out of order suddenly with my SiS305 AGP card. It was just working fine before I replaced the other AGP4X card. What happened to my P4B?

Answer :

Intel 845 chipset supports 1.5V signaling AGP cards only and the AGP slot on P4B got 1.5V key in it following the AGP specification in order to prevent a 3.3V AGP card from being plugged in. However, it turned out some AGP adapters such as SiS305 based cards, though operate at only 3.3V signaling level, were notched at the 1.5V key on the golden-finger interface. When using these cards, if the Vddq and VCC3.3 signals are shorted on them, will break up the 82845 memory controller hub as the Vddq is raised from 1.5V to 3.3V instead. In other words, the P4B mainboard will be permanently damaged as a result as soon as the system is powered up with such an AGP card. According to AGP specification, AGP4X mode will work at 1.5V signaling level only. If your AGP card has the 1.5V notch as illustrated in the user's manual but it cannot support AGP4X, please check with your card provider or manufacturer whether it can operate at 1.5V signaling level before it's used in combination with P4B.

That's all I could find on their site about probs with video cards.

[Wizzard~Of~Ozz]

CMOS settings which affect AGP display adapters
WARNING! Incorrect changes to CMOS may prevent the system from booting. Before making changes to CMOS settings, please ensure that you are familiar with the procedures for restoring default settings. Consult the documentation for your motherboard and/or your system.

The exact names of CMOS settings may vary from system to system. Not all systems will offer the options listed below.

These settings (if they appear) will normally be found in the CHIPSET SETUP or CHIPSET FEATURES portion of CMOS.
CMOS Option Recommended Setting
AGP Bus Turbo Mode
AGP Turbo DISABLED
Primary Frame Buffer
VGA Frame Buffer DISABLED
AGP 1X/2X/4X Should be set to match the capabilities of the graphics adapter
AGP Aperture Size
AGP Aperture DEFAULT or 64MB

Note - These recommendations are for troubleshooting. Your system may perform better with different settings.

There are also some systems that will not show a display until windows has loaded, This is also addressed in their FAQ about 9700Pro installation problems.