Hi Kordanor, […]
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Hi Kordanor,
I made the CHKCPU utility to have an independent check on the CPU speed, and the FSB and multiplier settings, so CHKCPU is only using data directly from the CPU and doesn’t use any BIOS data.
Yes, you definitely have a regular K6-2, but with the improved Chomper eXTended core. That is why CHKCPU indicates it as a K6-2CXT. This K6-2 model has the x2 multiplier remapped to x6, so the lowest available multiplier is x2.5.
From your CHKCPU report I see you are running the CPU in Virtual mode, probably because you load EMM386.EXE in CONFIG.SYS.
When you run the CPU in Real mode, CHKCPU will show you the multiplier and FSB speed, so you have a direct check on the BIOS settings.
Just remove the EMM386 line from CONFIG.SYS (or put REM at the beginning of the EMM386 line to make it a Remark line, so DOS ignores the command behind it) to get Real mode.
Thanks for sending the whole CHKCPU report, but for your purpose the Chkcpu /v command only should tell you what you want to know.
In Real mode it should look like this:
CPU Identification utility v1.27.1 (c) 1997-2022 Jan Steunebrink
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CPU Vendor and Model: AMD K6-2 CXT 300/333/350/366/380/400/450/475/500/533/550
Internal CPU speed : 350.7 MHz (using internal Time Stamp Counter)
Clock Multiplier : 3.5
Bus clock speed : 100.2 MHz
CPU-ID Vendor string: AuthenticAMD
CPU-ID Name string : AMD-K6(tm) 3D Processor
CPU-ID Signature : 00058C
CPU Features : Floating-Point Unit on chip : Yes
Virtual Mode Extensions : Yes
Time Stamp Counter : Yes
Cool'n'Quiet support : Yes
Instr set extensions: MMX, 3DNow!
Current CPU mode : Real
Internal (L1) cache : Enabled in Write-Back mode
Size of L1 cache : 64 KB
Jan