Hello folks,
Does anyone have any info about the board below? It is marked as "SM-P5TX3", on elhvb they describe it as "KM-T5-T3 aka Informtech 533T-AT aka Mentor BN533T aka BCM SQ572 aka SanLi/Superpower SM-P5TX3" but that board looks quite different from mine, including jumper settings. And that is exactly the issue I'm facing now. My board came with a K6/233 but I want to use a K5 CPU on it, and there are no jumpers for single voltage. From what I know, most of the S7 boards have jumpers for choosing single or dual voltage (P54C/P55C), but this seems to be an exception.
Most of this board's jumpers (core voltage, fsb, multiplier) are documented on the board, but there are two unknown ones (J15 and J14 on the VRM detail photo). They seem to be controlling the I/O voltage, as follows:

J15 closed, J14 open = 3.44V
J15 open, J14 closed = 3.47V
both closed = 2.36V (useless)
both open = 4.31V (useless and maybe dangerous?)
(Also, the difference between the first two settings is so small, I wonder why they even bothered)

In the end I installed the K5, setting the core voltage via J17 to 3.5V and the I/O voltage to the higher setting of 3.47V and it seems to work (it boots, CPU is recognized, nothing gets too hot). But I'm wondering if it's okay to use it like that. Because now the two power planes (Vcore and I/O) are effectively shorted together by the CPU.