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NCC74656

macrumors newbie
Original poster
May 12, 2022
16
1
ive done some googling and have seen mostly posts of people failing to make an X800 work in a QS. im curious to know if anyone has heard of a success case for this? i am considering buying a X800LE PC card and flashing it over to an X800XT mac edition. back when i was a kid i remember the vivo editions of that card were flashable into the XTPE versions so i think if i were to get a vivo - it ought to work in teh mac as an XT?

i know there are a couple pins to disconnect on the AGP slot to prevnt ADC issues. i was thinking of swapping the rom chip so ill just have the pc rom as backup and intact. i flash my cards via usb as i find it much easier than using dos or flasher programs.

i would love to hear of any success stories as if the QS simply does not support X series cards... ill pass on the buy.
 
well ive done a couple days of research here. as i remembered it seems the pro vivo is the only version that does not have laser cut package disabling pipelines. now i have found a mac retail rom for a 109 board. if what ive found is correct the only difference between 102 and 109 revision numbers is WHO assembled the board. having said that... it does not appear the mac x800 is a vivo card so i just need to hope nothing funky is changed.

it also seems that the only board one might be able to buy to turn into a mac card is either an XT or PRO as the XL uses different die size/pipelines/clocks and the SE has the same die but half the pipelines.

in theory i suppose someone could software disable the 4 pipelines in an XT firmware and maybe drop clocks a bit and make it work in a mac? im not sure, im more of a hardware guy. i can reball a gpu core on but as for hex editing the firmware... might take me a while.

so far ive only found one firmware file for the X800 as well. if anyone has a link to more than just the eliete mac that would be helpful. thanks.
 
i got this working. i did a full benchtest of all my video cards, 133 and 150mhz bus, single and dual core cpu, os9 and x.4 x.5 on macos9lives forums. only thing i ran into is lack of DVI output, analog works though. runs doom3 on quick silver at 47fps on high.

this vivo card took XTPE X850 clocks.
 
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