Reply 40 of 42, by subhuman@xgtx
The unofficial Win88SE service pack is everywhere online. It is even on those annoying download sights which have 10 "download" […]
The unofficial Win88SE service pack is everywhere online. It is even on those annoying download sights which have 10 "download" buttons, whereby you need to figure out which download button is the correct one.
I think an AMD X5-150 is faster than a Cyrix 5x86 at 100 MHz. Are you using a VLB/ISA-only board for the AMD X5-150 setup? Can the VL bus tolerate this kind of speed long-term? What memory speeds do you get for cachechk -d -t6 and cachechk -d -w -t6? Are you able to pass at least one round of MemTest86+ v4.00? Are you using just 1 stick of 64 MB for the memory? I've been able to get more stable system with just one stick and fast BIOS timings.
Yes, the older UMC 8881/8886 chipsets and/or BIOS implimentations do not support linear burst modes on the Cyrix 5x86. The lock-up you are describing is certainly due to the board not supporting this feature. Not to worry though, the performance impact is rather minimal. Are you able to run the system with LINBRST at 0 and BTB at 1?
Perhaps some IBM 5x86-120 chips might be stable at 3.45 V. I know Gainbery had their voltage regulator at 3.45 V and sold them with overclocked IBM 120 MHz chips.
For testing stability, I've noticed the 1024K cache on at least one motherboard does not tolerate fast cache timings at 40 MHz very well. I recommend first setting the L2 cache to write-through mode. Put the cache and memory timings on auto, which will be slow, then run Memtest through Test 6 (or all the way through test 9 if you wish). If it does well, put your timings on the fastest possible, run Memtest again. if it fails, try to find the middle ground with the timings and passing of MemTest. It is also a good idea to check your L1/L2/RAM read/ Ram write with each timing change.
Feipoa, why not just run PRIME95 Blend/SmallFFT for 24 hours instead of having to switch OSes?