Horun wrote on 2020-04-04, 23:17:
Early Pheonix bios. Try ctrl+alt+S. Most 286 you cannot run both DRAM and SIMMS unless there is a jumper to set the banks (they typically support 2 banks). Your DRAM is only one bank so maybe there is a jumper to allow using one set of SIMMS. Odd that the board does not have extra sockets and allow 1Mb of DRAM, most "Chips" boards do. Added: trying two at a time was a good idea, make sure they are true 9 chip simms 80Ns or faster (some bios do not like the 3 chip ones)
Hm. I do have very little knowledge of DIL/DIP memory, I'm afraid, since most of my 286 PCs used proper SIMM/SIPP modules.
So I wonder: Would it help Perro to simply remove the DILs and use one or two pairs of 1MB SIMMs ?
From what I experienced in the past, most 286es can handle 4MB just fine.
Also, what about the ROM/Video shadow and "relocation" settings ?
Shouldn't they be turned off ? From what I remember "relocation" is the one with the missleading term.
With "relocation" enabled, memory is contingous (memory continues after 640KB); when disabled, it skips the 640KB-1MB area.
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