Abit KT7-RAID FSB

[goretusk]

I'm sure someone has the same board. I'm curious to find out what the max FSB oc is most likely to be on this board? It's not the "A" version, just standard KT133. I know it is no where near 133mhz, any one know what a good number is? Thanks.

[Hoot]

I had dismal luck overclocking the FSB using the KT7. I could get up to 103 and above that it got unstable. That's why I just got a KT7A and sold the KT7 to someone just coming into the OC scene.

Hoot

[Random Horowitz]

The limit on the kt7 was about 115fsb. I think it was due to the via chips on board. I saw it in a review somewhere. The KT7A has been known to reach 183fsb. I had mine running at 143 with no problems.

[goretusk]

Damn...well unfortunately I don't wanna spend money on another board for the same platform...seems like a waste, if I wanna get higher speeds I may as well just buy a faster CPU, eh? I'll play with it either way, see what kind of overclocking I can pull out of it. Thanks for the info guys.

[Random Horowitz]

Just push it until it dies and then forces you to buy a new board. :) Good luck..

[Hoot]

Don't despair. With my KT7, I could get my 600 Duron up to 10x100 @ 1.85V. That is nothing to feel bad about.

Hoot

[goretusk]

ahh, no...that definitely is not...only thing is: oc'ing the FSB creates a much larger impact then increasing the speed...both are great, but if you could do both it would be nice :) and if you could even keep the speed of a 700 around 700, but raise the bus speed it'd be cool.

[Eriksson]

goretusk (Mar 28, 2001 06:32 p.m.):
ahh, no...that definitely is not...only thing is: oc'ing the FSB creates a much larger impact then increasing the speed...both are great, but if you could do both it would be nice :) and if you could even keep the speed of a 700 around 700, but raise the bus speed it'd be cool.

This is not actually true..what matters is the memory speed, with proper settings in bios your can run your memory at similar speed as you would on the [A] version.

I have been experimenting a LOT since I got both KT7A-R and the KT7-R. I cannot find any performance difference if the memory speed is the same, and cpu speed similar.

Example: 150x8 =1200mhz is similar to 112x10,5 = 1176
in the latter case the mem is running = pci +fsb = 112+37=149mhz..

This means if you can run 110mhz fsb or better on your current board you will not gain anything from the KT7A version, since the dual pumped (DDR) front side bus on Durons Tbirds is not a bottleneck in any case, mem speed is.

*Tip*
When you increase the cpu voltage on these boards you throw off the voltage reference for the fsb signal. The results are less fsb speed at higher cpu voltages. To compensate for this you need to increase the I/O voltage. I have been running up to 3.9V I/O to maintain high fsb speeds @ 2.1V core. This figure is NOT recommended and I/O voltages should be kept below 3.6V. Still I didn't fry anything, but you might not be as lucky.

[Hoot]

Eriksson
I too have been experimenting and though I've played with upping the I/o voltage, I didn't actually know the reason why it was necessary. Thanks for yet another tidbit of knowledge.

Hoot

[goretusk]

Another quick question for KT7-R owners: I've looked for stuff in manuals, and have not seen this addressed, but: does the board have an external sensor monitor plugin? I'm thinkin no, but I just figured I'd check. I don't think that the onboard monitoring sensor is very accurate, considering it is underneath the CPU and the die (where it really gets hot) is on the top. Any input on this?