First post, by Anonymous Coward
- Rank
- l33t++
This is an interesting 386/486 hybrid chip (cyrix 486DLC clone) that has 8kb cache and clock doubling. Certain models can be used as drop in upgrades, like the one that I have from Improve It Technologies (make it 486). I've been having some troubles getting mine working properly though. I have not been able to get the clock doubling going.
Normally when I use Cyrix core chips in my systems I run the utilities that came with the Cyrix 486DRx2 family of chips because it is the only utility that I know of that can make the chip co-exist with DMA SCSI controllers. This software has just about every option you can imagine, except it lacks the ability to enable/disable the clock doubling. The 486DRx2 unlike the 486SXL2 enables the clock doubling by default, and therefore this option is not necessary in the official Cyrix control software.
The Make it 486 software includes a cache enabling utility that CAN enable the clock doubling feature, but lacks many of the features present in the Cyrix software. Therefore using this locks up my system. I've tried using some of the flags but without success. A couple of times I saw error messages related to the A20 handler. The Cyrix control software had an option for A20, but I can't find it anywhere in the Make it 486 utility. Perhaps someone on here has the original documentation for this package. I looked online and wasn't able pull up anything.
