Here's a picture of the reverse of my Cyrix III 600MHz in case it's of interest.
286 20MHz,1MB RAM,Trident 8900B 1MB, Conner CFA-170A.SB 1350B
386SX 33MHz,ULSI 387,4MB Ram,OAK OTI077 1MB. Seagate ST1144A, MS WSS audio
Amstrad PC 9486i, DX/2 66, 16 MB RAM, Cirrus SVGA,Win 95,SB 16
Cyrix MII 333,128MB,SiS 6326 H0 rev,ESS 1869,Win ME
wrote:I wonder about the VIA C3 Samuel 1 (known as VIA Cyrix III) which is even slower than Samuel 2, but extremenly rare
The Samuel 1 is not that rare, but the cancelled VIA C3 Joshua core is. The Joshua was an actual Cyrix design.
--> ISA Soundcard Overview // Doom MBF 2.04 // SetMul
Is there anyway of forcing these CPUs to be detected as 66MHz FSB at POST? My DFI board can force this through the BIOS, but I have other boards that autodect Ezra-T CPUs at 100MHz, when I'd rather they POST at 66MHz FSB. Thanks in advance.
May be possible by a CPU pin mod or by changing a connection on the motherboard side. May also be possible by modifying the row of traces on the back of the C3 CPU. I have no clue which trace may or may not affect it.
Here is something similar, where I made a Slot 1 133MHz FSB pentium III default to a lower FSB speed. Either 66 or 100MHz, I cannot remember. Intel SR440BX mods
--> ISA Soundcard Overview // Doom MBF 2.04 // SetMul
wrote:wrote:I wonder about the VIA C3 Samuel 1 (known as VIA Cyrix III) which is even slower than Samuel 2, but extremenly rare
The Samuel 1 is not that rare, but the cancelled VIA C3 Joshua core is. The Joshua was an actual Cyrix design.
This is what I thought. I did have some difficulty getting one of mine to run. I don't know what board will work with these, the CPU voltages are very similar to the old Mendocino CPUs and those aren't supported by all s370 boards (I think because the CPU voltage was too high for some boards).
