Asus a7v400:onboard video (VIA/S3G KM400)

[pode1]

onboard video: "VIA/S3G KM400"

I got the Asus a7v400 motherboard and I just can't disable the use of shared memory from bios setup ... options are 16, 32, 64 MB.

I installed a PCI video card and the monitor doesnt recognize it at all !! (it switchs to off inmediately) This mobo has an AGP slot ...

I get in windows 98 and I try to see if my new board is detected but it's not.



NO support for this issue in the Asus site or in the printed manual neither.

[MJCfromCT]

Aside from adjusting the amount of memory given to the onboard video, there should be another option somewhere of enabling/disabling onboard video altogether. Once that is done, make sure the "first boot detect" or however your BIOS says it is switched to the correct thing (PCI or AGP as opposed to onboard) and that should do it.

Before you swap in a video card, you should make sure you have removed your drivers for the old onboard video.

[rmanet]

I've seen boards that autodetect a video card and automatically disable the onboard, some have jumpers (been awhile since I saw that) and before installing a new video card it's always best to change your display to standard vga.

You'll get an ugly 640x480 16 color display, then either load the driver in display under the stting tab, device or hardware manager, or soem cards use an exe. file to load the driver.

Boot to safe mode F8 and change the display if you're still not seeing anything, and make the display adapter change there?

[sm8000]

Check your BIOS to see if there's a setting for "Primary" or "Boot Display Adapter" or something similarly worded. If it's at AGP, set it to PCI.

[Crashman]

One of the BIOS menues (probably PNP settup, maybe onboard devices) should have the option "Primary Graphics Adapter" or "Initiate Display First" followed by PCI and AGP. AGP means either your onboard AGP or any card in the AGP slot (treated the same here). You'd want to select PCI.

I don't think you'll be able to get rid of shared memory for onboard graphics completely unless you install an AGP card. Most boards with on-chipset graphics use AGP slot auto-detection to enable/disable onboard graphics. Jumper disable is usually limitted to very old boards with onboard 3rd party graphics chips.

Why did you go with the PCI card? It's understandable if that's all you had, but if you were buying a new card it would be a poor decision for several reason, including your inability to completely disable onboard graphics on many boards, as well as increased performance and decreased price of AGP cards compared to their PCI counterparts.

[Recordlord]

Can you uninstall/disable onboard video in device manager?? Try disabling first. Then put the cable on the pci card. Boot post back. THat should get you going.

[Recordlord]

THere possibly might be a setting in bios to choose between pci/agp card.

[pode1]

THANK you people!

It seems that the only Pci card allowed is the onboard one (seller says that). So if I want to recover the shared RAM I need to install an agp board . Is there any suggestion about it (low cash)???

[Peter M]

BS. The reason why you can't disable the integrated VGA is that you don't have to. It is capable of coexisting with a PCI VGA card. BIOS lets you choose whether you want the PCI or the (integrated) AGP VGA to become the primary (boot) device.

The problem mostly is with the PCI cards - many of them, particularly older designs, are not cooperating with another VGA in the system.

On the other hand, the integrated VGA does disappear when you plug an AGP card. This is because one cannot have more than one AGP device in the system, and the integrated one technically is AGP too.

[pode1]

C:\Mis documentos\prop sist.jpg

thanks pal but

"the integrated one technically is AGP too"


seems to be wrong

that's what Device Manager shows :

[Peter M]

That's because system-AGP bridges look like PCI-PCI bridges until you install the chipset's drivers.

VIA's 4-in-1 package is in order - install at least the AGP bus driver. Then you'll see.