Kudzu,
According to this page http://users.erols.com/chare/586.htm, the k6-2+ 2.0v mobile processors (as you said) should run, as well as the k6-3+ mobile processors. K6-2+ 450, 475, 500, 533, 550, and the K6-3+ 450, 475, 500. They all run at 2.0v, so hopefully they could run at 1.9v. Especially if they were underclocked, I guess they would be stable at 1.9v, eh? Since softfsb can change the FSB, we could easily get 4x100 on any of the chips, as long as they didn't burn up and the power requirement was met.
Here are the results, for the K6-2 266 using an older version of Sisoft. I copied it over from my post in another thread, http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl?Action=ShowPost&Board=MSNCompanion&Post=6&Idle=0&Sort=0&Order=Descend&Page=0&Session=
From sandra sisoft:
60MHz -- PR240; 446 mips
66MHz -- PR268; 508 mips
70MHz -- PR280; 536 mips
75MHz -- PR300; 556 mips pci at 37.5
75MHz -- PR300; 520 mips pci at 25
80MHz -- PR320; 595 mips pci at 40
83.3MHz hangs
The IA-1 seemed stable, up 75MHz bus speed (I didn't do any type of torture tests). However, at 80MHz, things seemed far less stable as after a certain period of time, and depending on what I was running, the system would hang - naturally seems like a heat issue.
For the K6-2 333MHz, I got these results using sandra sisoft 2001te (so they can't be compared to the k6-2 266)
60MHz -- 377 mips
66MHz (stock) -- 435 mips
70MHz -- 455 mips
80MHz -- 514 mips (pci at 40)
83.3MHz -- 525 mips (pci at 41.7)
Whereas the K6-2 266 wasn't stable at 80MHz and hung at bootup at 83.3MHz, the 333 was able to go. I think I had the same problem at 83.3MHz where it would crash after a while due to heat. The 80MHz setting seemed more stable in that it didn't crash/hang after a period of time.
Peak power requirements:
http://users.erols.com/chare/elec.htm
This shows that the K6-3+ processors can take 1.9v to 2.1v, and that the K6-2 266 actually wants 1.8v but will take 1.7 to 1.9v.
. Any idea what the max the IA-1 can put out? What would happen to the processor or IA-1 if the max was supplied to the processor?
The problems always seemed to be that the IA-1 would hang quickly after being at the highest setting I listed for each. At one FSB setting below, it would boot, and be able to run programs with no hanging. I imagine that having a cooler room would help too.
Also, Sisoft identifies the AMD K6-2 266 as a chompers CPU, and says it runs at 2.2v, but I assume this to be incorrect as on the motherboard it states 1.9v.
Let me know what you find out.
I think I put enough in here for one post.
ranman
