troubles w/ 800eb on a BF-6

[EyeTalk2Trees]

My friend just got a 800eb and trying to get it going on the BF-6 keeps giving him and error saying CPU has been changed. I was thinking maybe update the bios and see what happens...has anyone run across this? does this mean the CPU is bad??
thanks

[theflyingrat]

Doesn't an 800eb have a 133 MHz FSB? If so, the CPU won't probably work too well, if at all, on this board - the 440BX would only officially work with CPUs up to 100 MHz FSB.

Anyone else have any ideas?

[EyeTalk2Trees]

thats what I was thinking but the BF-6 board can go from 66mhz to 200mhz in 1mhz incroments...i was thinking it could handle a 133mhzFBS CPu just fine, I'm learning that may not be true..

[NightLord]

Well The BX chipset DOES support 133Mhz FSB. Guess where the i815 was back when the first pIII 600EB CPUs hit the market? On the drawingboard. Anyways, my Bf6 runs now at 142Mhz.
The problem should be somwhere else, unfortunately, i have no idea where.

[theflyingrat]

In that case, it probably has something to do with your PCI divisors. I own a BF-6, and I don't think there is an option to turn the divisor down to 4, so you can safely run all of the PCI components at a relatively save 33MHz. Is there a 1/4 available? Refresh my memory.

When the first 133MHz CPUs hit the market, the 815 was still on the drawing board, but the VIA Apollo 133 was NOT. Since the 820 was such an incredible flop, Intel was left with its pants down, while VIA gained a controlling interest in the 133FSB CPU motherboard market. The BX never had OFFICIAL support for 133 MHz, but it would usually still run it, but only if all of the other components agreed with being run out of spec.

[JaY_III]

I have a BF6...
and yes you shoudl get that error messgae when you change the CPU....
Update to the latest BIOS from Abit for the BF6, and it supports the 800EB.
Reboot, go into the BIOS (softmenu III) and select Abit SoftMenu III Setup.
Now select the 800(133) chip, push enter.
If you plan on overclocking, (after you select 800) reenter the CPU setup info, and select "User Defined" (this will set the correct PCI divider/AGP ect.)

Push F10, Y , enter
(computer will reboot)
del to enter setup
and go back to the same menu and away with the overlocking.
If your AGP card can take it, 4x AGP on a BX. gota love that.

[Carmine_Paterno]

I am running a BF6 right now, and there is only a 2xagp.

[e laursen]

I own the BF6; I love it.

The BX chipset does NOT officially support buss speeds above 100. This is because there is no 1/2 agp divider, the best is 2/3. There IS a 1/4 PCI, so the PCI buss will run at the proper speed at 133FSB, but agp will be 89MHz. AGP is 2x max.

CPUs above 100MHz fsb will work on this board, as long as the agp card has no issues. Above 133fsb, the PCI stability comes into play.

[Celemine1Gig]

Hi guys,

I also own an Abit BF6 and I love this board. Get the latest bios and you can adjust PCI latency, which can give you more stabilty at FSB speeds above 150MHz. 150 MHz FSB is no prob for me, if I set the memory to CL3, but soon I'll get Infineon CL2 RAM.

Hope this helps.

Always get the newest bios if something isn't working properly.

[JaY_III]

OK you got me thier only has AGP 2x... BUT when out of spec... you can get 3x-4x
66Mz is APG in spec
lets say w get the FSB upto 133, the 2/3 divider for agp gives us 88.6 x2 =177/66= AGP 2.68
or we could just use the 1/1 diveder for our AGP card and hope the card works like this. 133x2=266/66=4x AGP