First post, by mulciberxp
I was testing this Zeos NCR 77C22E+ VLB card and cannot figure out why it seems to only display a CGA color palette. Could it be a bad DAC? I performed a continuity check on every trace and found no issues.
When I run VBETest from Display Doctor 6.53 it only lists the 8bit color modes. It does not list any available test for 16/42/32 bit modes.
Does anyone have any experience with this card? I've read a couple places that the non+ version of this card requires loading a TSR called HIGH_RES.SYS to enable high resolution and color modes, so I tried that, but it didn't help at all.
Here is a link to HIGH_RES.SYS
The rest of the system is
Motherboard: MV035F with 256k L2 cache
CPU: AM5x86-P75 133mhz
RAM: 16Mb 72pin simm
IDE/Floppy Controller: VLB UMC 8287
I've used the system to test a dozen other VLB cards without issue.