CPU Host Clock Select

[pike]

Mobo: Epox EP-8KTA2
VIA KT-133(VT82C686B i/o Bridge)
(VT8363 PAC PCI Bridge and memory controller)
Bios: Award 01/10/2001-8363-686B-6A6LMPA9C-00
Ram: PC-133(no details for now)
At boot bios displays: "DRAMCLK: 133Mhz"
In "Advanced Chipset Features" :
DRAM Timing By SPD: <i>Enabled</i>
*DRAM Clock: 133Mhz
*SDRAM Cycle Length: 3
*Bank Interleave: Disabled
please note: when DRAM Timing By SPD is set at <i>Enabled</i> the 3 following settings have the indicated values as "fixed" values!

All seems in order, right?
My mobo sys bus is 100Mhz & my Memory bus is 133Mhz. This is confirmed at bootup display and in bios.
My manual states a Athlon 1.1Ghz as max and this would be the 200FSB production type, right so far?
What is confusing is this damn jumper JP14 which is:
CPU Host Clock Select
1-2 100Mhz(Default)
3-4 133Mhz
WTF does this jumper setting do!
It is at present at 100Mhz default.
If this board was not meant to function at 133FSB(which as I understand is the actual cpu to chipset bus speed) then wy is this jumper setting on this board?
Someone set me strait, please!
Thanks


Are we really ready for "contact" ?

 

[o1die]

That jumper is for fsb; the athlon 200 series runs at 100 fsb (doubled pumped = 200). Some kt133 boards have this jumper, even though they won't run a 266 athlon at 133 fsb. If you tried to run with that jumper at 133, your system probably wouldn't boot up. It may have been put there for testing purposes.

 

[pike]

Well! Roger that Houston!
Apollo will now return to predetermined flight plan!

Will not say nothing about "...sticks and little green men and up their butts", no! not a single thing!

Thanks, oldie
Us oldies must stick together 🙂

Are we really ready for "contact" ?