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486 cache & CPU upgrade questions

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Reply 20 of 20, by chinny22

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jakethompson1 wrote on 2020-08-24, 21:04:

Out of curiosity what BIOS options do you have for cache/RAM timings, and write-through vs. write-back L2 cache?
I ask because I have a UM491F board where I have the trouble of not being able to go faster than 3-2-2-2, and write-back vs. write-through making no performance difference, and possibly "always dirty" cache.

On a similar note, do you know if this board supports write-back L1 cache? If not, that would be reason not to put one of the last-line 486 CPUs in it since it won't take 100% advantage of them.

Ok so my Abit PB4 has been behaving with the fastest settings although only lightly tested (copying files over the network and such)

DRAM Read: Fastest
DRAM Write: Fastest
SRAM Read: 2-1-1-1
SRAM Write: 0 Wait

This is very different motherboard to the Tatung TCS-9510 though. (Award BIOS, PCI no VLB)