Sorry to barge in here but I've got to ask: why is the M919 so popular? It seems like there are more threads about it and projects directed at it than any other single mainboard model ever. Were there just that many of them made? Dirt cheap at time of release? High performance? All of the above? …

+-----------------------+-------+------+------+------+ | Test | No L2 | 256K | 512K | 1M | +-----------------------+-------+------+------+------+ | 3DBench 1.0c fps | 74.5 | 78.3 | 78.7 | 78.7 | | Chris's 640x480 score | 29.2 | 28.6 | 29.4 | 29.5 | | PCPlayer 640x480 fps | 7.4 | 7.8 | 8.4 | 9.1 | | …

l2_perf.JPG I can´t believe L2 is merely 50% faster tham RAM. Does this apply to all sizes of cache sticks for this mainboard? The results look consistent with other cachechk results I've seen for 486DX4s with 33MHz bus. I think the L2 bandwidth follows the internal CPU speed more than the cache …

By looking it over, pretty much only 3 things need to be considered to have working fans on this board (or a lot of other boards that work similarly): 1. 12V is making it to the fan header 2. Working low side switching FETs, the little 3-pin SOT-23 components next to the headers with DGS labels on …

kixs wrote on 2022-01-11, 22:42: Can you run Speedsys and post a screenshot? My memory timing settings Speedsys Cachechk

kixs wrote on 2022-01-11, 22:42: Can you run Speedsys and post a screenshot? Certainly, I'll capture speedsys/cachechk/whatever else is of interest once I get home in a few hours.

1MB stick works, how fun Awesome work. Now I wonder if someone will shock the world and release the extremely delayed Pipeline Burst cache module. :-D That would be shocking! Some points learned during probing the board and doing research: Cache stick power is hardwired to either 3.3V or 5V, the …

1MB stick works, how fun

I whipped up a design and layout for 1MB 3.3V M919 cache stick, will report back when I receive boards and parts and can test one. Hopefully just a couple weeks wait. Praying it works. Also have a 5x86-133 on the way so I can do some good comparisons of no L2 vs 256K vs 1M (predicated of course on …

pt-5vmd.jpg Out of nostalgia for the first computer that was truly mine (a K6-2,) I picked up this PT-5VMD with K6-2 500 that needed some capacitor love. Now that's taken care of, I plan to swap the AT jack for PS/2, then see if it fits in my Gateway P5-90 case. For the moment I'm testing it with a …

DFI 486-CCV Rev B