Raju wrote:
| "Kevin Lawton" wrote in message
| ...
|| Mike wrote:
|||| Some of my systems use the GA-7VRXP Rev 2.0, and they do not appear
|||| to have any way of setting the FSB clock to 166 MHz. On this board,
|||| the FSB clock is set using a small on-board switch which selects
|||| between 100 MHz or 133 MHz - there just isn't a 166 MHz option
|||| available to use. The CPU clock multiplier is also set by on-board
|||| switches, but that is another matter.
|||
||| And I was thinking that when I use a CPU that runs on 166MHz the FSB
||| will automatically follow to 333. Am I right or wrong?
|||
|||| The processor FSB and the memory bus are different and set up
|||| seperately -
|||| it is important not to confuse the two.
|||
||| Understood. But you are saying we cannot select a FSB or system bus
||| speed on the GA-7VRXP?
||
|| No - quite the opposite. You can select the CPU FSB clock speed via a
|| switch - either 100 MHz or 133 MHz, and you can select the memory
|| bus speed via the BIOS set-up - either 100 MHz, 133 MHz or 166 MHz.
|| That's what I said and that's how it is. I've used quite a few of
|| these boards recently and if Gigabyte have come out with a version
|| which will facilitate setting the CPU FSB clock higher than that
|| then I certainly haven't encountered it. Neither am I aware of any
|| 'Revision 3.0' or suchlike variant which might support a higher CPU
|| FSB clock rate.
|| It is also worth noting that these boards will only support DDR333
|| memory in two memory strips, and not three, whereas DDR200 and
|| DDR266 are supported in all three memory slots.
|| I felt it worthwhile pointing out that the CPU FSB clock rate and
|| the memory bus clock rate are different things, as some newsgroup
|| posters seem to confuse the two. Fortunately, on the GA-7VRXP they
|| can be set independently. Kevin.
|
| according to gigabyte website there is a rev 3 board...
|
http://www.giga-byte.com/MotherBoard/Products/Products_GA-7VRXP%20(Rev%203.0
| ).htm

Nice one, Raju, I wasn't aware of that. I am supposed to be sent bulletins
of updates but that didn't come through !
Judging by the spec, they seem to have to have altered just a few things for
the Rev 3 version of the GA-7VRXP. The sound chip has changed and, most
importantly, the FSB clock speed adjustment has changed from being an
on-board switch to being set in the BIOS. The limitatons still seem to be
the same , though, with a maximum 266 FSB (ie: 133 MHz clock) and only two
strips of DDR333 memory supported (but three of DDR266 or DDR200). The CPU
multiplier remains as on-board switches, too. I guess that this gives a bit
more scope for pushing the board past its design limits - overclocking - if
you really want to. I would still suggest that this is a good board for a
thoroughbred-core CPU, but if you want to get the best out of a barton core
then a different board would be more appropriate - the GA-7VAXP perhaps.
Kevin.