I am having trouble with an old machine. It's a hobby. I have an old Acer Aspire Desktop. It is running Windows 98 now. It has an onboard ATI Mach 64 video card. I installed an ATI Rage Pro 128 PCI graphic card in the first PCI slot. When I turn on the machine the monitor is black. I have tried hooking the monitor to each card during start-up, but I get the same result. I have also started the machine with a monitor attached to both cards, but then both monitors are black. The monitor looks like it never gets out of the sleep/in-active mode. It will not let me disable the onboard video card, but I have tried deleting it via Windows before I install the PCI card, but I still get the same result. I am out of ideas. Nothing in the bios seems like it will help. In the bios there is an option to set the PCI IRQ settings for slots 1 to 3 and the Onboard PCI VGA. It is set to Auto. There is also an VGA Palette Snoop option. Any guidance would be appreciated.
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What does the user's manual say about settings in the BIOS? And look and see if there is a jumper on the motherboard that needs to be changed. It the BIOS has an auto setting there may be other setting specific to the two different graphics.
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If you can give me the model or that Acer I will download the user's manual and see what I can find out for you. I won't be able to get back to you till this evening...I have to go earn my keep.
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