I just acquired a WinME-era PIII system from HP with a Geforce 2MX400 installed. The motherboard has a universal agp slot, without any keying for voltage. The system will boot with the GF2MX as well as my GF256 DDR. However, it will not even display the video BIOS with my GF4 TI4200 8X AGP card. This seems odd since I used that particular GF4 in another PIII system of similar vintage for years and even used it with my prior PII system with a 440BX. I've run into similar problems trying to run newer PCI cards in older Socket 5 and 7 boards, but I never would have expected to run into this problem with a universal AGP slot.

With the GF4 installed, the motherboard is beeping 1 long and 3 shorts as well as 1 long and 2 shorts.

Does anyone have any ideas as to what might be the problem?