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    Incompatability of AST Sixpackplus and NEC V20 Experienced with Clone XT

    I physically examined both sides of card and see no physical deterioration of any components or leads touching. I placed tape over the B7 contact and installed installed card. Computer started OK!! Of course did not recognize card had been installed. I have attached pic of board. Thanks again...
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    Incompatability of AST Sixpackplus and NEC V20 Experienced with Clone XT

    As noted in previous posts, I have also experienced the incompatibility of the SIxPackPlus board with the NEC V20 CPU chip. Booted OK until installed board. When installed, NOTHING; only a few rotations of fan in switching power supply. Remove board and boots OK. Wanted to install card to...
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    BackPack 5.25 floppy Setup Disk for Model 14350

    Expected that the Backpack 1.44/3.5 drive would come with 5.25 floppy setup disk. Wrong. Only provided a 3.5 inch floppy. My XT clone that I am trying to restore only has 5.25 drives. Would appreciate on how to acquire a 5.25 floppy for the Backpack Model 14350. The setup disk for DOS, WIN...
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    XT Not Access Extended Memory Board; Parity Error F000:F9B9

    After 25 years in storage, now trying to restore my clone XT. Finally got monitor and keyboard issues resolved and NOW need your help with memory problem. Can not access 384K on extended memory board. When cold booting goes through 256K ram check (on-motherboard) and boots to DOS. "MEM"...
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    XT MultiFunction Memory Parity Issue (What Chip) and BIOS Access

    Really need your expert expertise to help me get my XT running again after all these years of storage. Finally got keyboard and monitor issues resolved. Turbo 640 Motherboard Problem NOW: Only the 256K on the main board is being accessed. No errors on boot up, but only 256K is shown as...
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