"robert from said:
have a brand new board, old I know, having difficalty finding the right
settings to make it run.
Have two pentium 111 coppermine cpu's 133fsb 1Ghz.
Have 3* 500Meg ECC DDR SDRAM Chips
Have 4* Video Graphics Card V7700TI/64M
Can someone set me right in setting the DIP switches?
I do not understand the maths involved
Robert
You can download a manual here.
http://www.asus.com/pub/ASUS/mb/sock370/pro266/cuv266-d/cuv266d-103.pdf
See page 18 for some DIP Switch settings. If you want to use the
DIP Switches, then JEN has to be set for jumper mode (pg.17). Since
you've mentioned that the processor is 1GHz/133, then the DIP Switches
would be set to the 133.90/66.90/33.40 MHz setting (where the numbers
are FSB/AGP/PCI respectively).
The manual says the memory should be at least PC2100 (DDR266)
unbuffered NON-ECC memory. The presence of ECC shouldn't hurt
anything, as a motherboard that doesn't support it, won't connect
wires to the nineth ECC chip on each bank.
As for any "maths", the PCI bus nominal frequency is 33MHz, AGP
is 66MHz, and the FSB is set to match the lower of the (CPU/Memory)
ratings (FSB = 133 in this case, DDR266 divided by 2 = 133 as well).
Some people have trouble when attempting to overclock, when they select
DIP switch setting which run the PCI faster than 33MHz etc. Some IDE
controllers have trouble communicating with IDE disks at 37.5MHz or
38MHz or so. Some people have managed to push the PCI higher than
that, by using PCI devices known not to be sensitive to PCI clock
frequency. For example, disconnecting all IDE devices and using a
SCSI card might allow a higher PCI frequency to be used. In any
case, this is not particularly a good direction to go in - it is better
to buy a motherboard that has a PCI/AGP "lock", where the FSB is
independent of the choice of PCI/AGP. This is a recent innovation,
so older boards won't have it. Otherwise, on your board, you could
try 145/72.5/36.25, which would be a slight overclock.
If you have any further trouble with the board, dual processor boards
are also discussed on forums.2cpu.com. There is a search engine, and
you might find answers there concerning running SMP and choosing
MPS setting in the BIOS and so on.
HTH,
Paul
