Need help locating 895grnjp.zip (jumper settings for QDI m/b

[old_shtuff]

Hi there,

My 486 apparently has a QDI V4P895GRN mo/bo, which is based on the OPTi 895 chipset and seems to be a later revision, since it has 4 PS/2 SIMM sockets only (and thus differs from the 2 PS/2 plus 4x 30-pin versions found in Total Hardware 99) and came with a V1.3 BIOS from July '95. (I've already located V1.4 via FTP search, I guess I'll need some older AMI flash utility?) I'm running an AMD 5x86-133 on it now, but have been unable to activate write-back mode for the L1 cache. When I set the jumper for "3X CLK for AMD CPU", write-back works, but this setting is not compatible with "2X CLK for Intel DX4" (no POST), which is needed to run the processor at full speed (2X=4X, else 3X). Now I found out that there used to be a file 895grnjp.zip describing the jumper settings on the QDI FTP years ago (along with the less interesting 895jump.zip for the older version), but this is long gone. I've searched with various FTP search engines and all, but have been quite unable to locate this file. Any clues on what I could try next?

Stephan

[Rainbow]

Tried this? http://www.elhvb.com/mboards/qdi/v4p895g1.pdf

[old_shtuff]

Well, that brings me a step further (why haven't I looked there earlier, when my HOT-409's PDF manual came from there as well?), but still doesn't mention anything about how to set the jumpers for a 5x86-133. I hoped said .zip file (dated end-'95) would contain some more up to date information. Well, at least I know where the power LED should be connected now.

[edwin]

Indeed it has additional settings for other CPUs. Added:
http://www.elhvb.com/mboards/qdi/Index.html

the V4P895GRN 4SIMM

[old_shtuff]

Duh... (So much for my searching skills!) Well, I must admit that you guys aren't just great, but yet better . I set the jumpers according to what they should be for a 5x86-133, but alas, I still get the same problem as before - no POST with both 4x multiplier and write-back set, but the system works with one *or* the other. (And performance is not too shabby at 133 MHz - this box is easily as fast in Duke Nukem 3D as my old Pentium 75@90 used to be [perfect in 640x480, still quite playable in 800x600], but naturally slower when it comes to MP3s.) Any clues whether a BIOS update might help? (Somehow I doubt it...)

[edwin]

must be something between the 5x86 and the opti895 chipset. Somehow I think they were not quite designed for eachother...