Highest CPU for ABit bx6r2 mobo

[Prince of Persia]

Whats the highest cpu I can get for this mobo? I'm trying to upgrade just the cpu. So whats the highest cpu possible?

 

[lilnnjaboy]

Highest one that abit says is a 700Mhz. But if I can install PIII 800's on my BH6 then who knows. But as far as abit says...it's a 700.

 

[Boogak]

I'd say a 1ghz pIII, either the 100 or 133 fsb one if you have the memory. I run a 800eb on my BX6-2, might upgrade to a 1ghz when prices drop lower.

 

[FrankBlack]

I also have a bx6r2 with an 800 slot1 chip in it wit the QR bios, and I manually set it up in the BIOS, never really tried to see if it would just detect it and all, but I think I remeber that the multiplier only went up to 9, so 9x100 FSB would be only 900mhz chip, but who really knows if a gig chip would work or not, i'd like to try that out too when those chips get lower...

 

[Baba]

I'm also investigating the possibilities of placing a 1GHz PIII on a BX6rev2. I asked support at a local comp.store and they said it could work (as both the correct voltage and FSB where supported). But he didn't seem 100% sure. He said they could let me test it, if it didn't work I could return it.

quote Boogak:
"100 or 133 fsb one if you have the memory."

So if I only got PC100 memory, my chip will perform just like it only got 100 FSB instead of 133, or is it just a minor decrease in performance? Although PC133 mem isn't all that expensive, if there's a big performance gain (>10%) I might consider it.

Also, I just sent a straight to the point question via email to Abit technical support, if they take the time to answer it, I'll be sure to post it here.

OT:
Are all yahoo emails accounts banned from this board? I couldn't get mine to work.

 

[Baba]

Oboy, the picture I got assigned to my name acctually looks like me. Yikes!

 

[Helznicht]

P3 1Ghz (100 fsb)

 

[Baba]

<< P3 1Ghz (100 fsb) >>



Eh eh sorry for being such a nuisance, just want it to work so, and don't want any uncertainties (if I can avoid them).

You meant &quot;133 fsb&quot; not &quot;100 fsb&quot;, right? And you're saying it works with the bx6rev2?

MANY many thanks!


Baba

 

[Helznicht]

NO, I meant 100

Intel made a 100 FSB 1ghz P3 (100x10) although they are hard to find.

I would stay away from the 133fsb chips, as on the BX platform, when you run over 100 fsb, you start running your PCI and AGP out of spec and some hardware might not like it.

Better to buy a 100fsb chip and overclock into the (112, 124, 133) range than buy a 133fsb and find out your (insert PCI card here) wont take (44khz - 133fsb).

If you dont want any uncertainies, go with the 100fsb P3s.

I currently run a P3 750 @ 840 (7.5 * 112) on a BH6. The BX6 abd the BH6 are pretty much the same board.

 

[Baba]

Oh OK thanks for clearing that up.

The PIII 1GHz at 100 fsb still is no option as the multiplier on the bx6rev2 only goes as high as x8. From what I've read there shouldn't be much problems with the AGP or PCI port on a BX6rev2 since the PCI may be devided 1/4 and the AGP 1/3 at 133mhz (http://bxboards.com/mainboard/slot1/bx6-2.shtml).

However...
*According to the review here at Anandtech, the bx6rev2 performs badly when above 124mhz fsb.(although the review is old and BIOS updates have been done after that date)
*A swedish (where I live) online reseller claimed in a FAQ only P3 using 100MHz fsb would work on a BX-board, with exception for the Abit BE6-II which infact has actual support for 133 PIIIs. (damn!)

Anyhow, from viewing benchmarks, 800MHz might be sufficient for me (might do just abit of overclocking). I just want a good enough CPU not to bottleneck the Geforce2GTS I'm planning to buy along with it. Although I am having somewhat of a problem finding a reseller that still has them. On the plus-side however is that if I find one it will likely have better price/performance ratio than the 1GHz, which is good as I really don't like spending too much money on this. I'm guessing I could find it for about 2000sek (swedish krona), whereas the 1GHz is 3000sek.

What about the PC100 or PC133 RAM? Must one have PC133 for a 133 CPU?

 

[8602081]

I've installed P3 850 (100fsb) without any problems..

 

[Baba]

But then your running 100*8.5, didn't think that would be possible (since specs say 8 is highest multiplier). You sure it didn't force you down to 100*8 or something, if that at all is possible(?).
Seems like this mobo is more stable than Anandtech gave it credit for, this baby seems to run almost anything.

Gotto go take a nap now...

cyall and thanks for contributing 8602081.

 

[Helznicht]

&quot;The PIII 1GHz at 100 fsb still is no option as the multiplier on the bx6rev2 only goes as high as x8.&quot;

Where are you getting that? The latest bios for my BH6 Rev 1.0 goes up to a 13 multiplier. Keep in mind the latest manual says it only goes up to 7.

You should update to the latest bios before you convince yourself that the BX6 (which is a newer, updated BH6) wont do a 10 clock multiplier...

&quot;Seems like this mobo is more stable than Anandtech gave it credit for, this baby seems to run almost anything.&quot;
HEHE yup, the BX platform has lived a long time.

 

[Baba]

<< You should update to the latest bios before you convince yourself that the BX6 (which is a newer, updated BH6) wont do a 10 clock multiplier... >>



I'll be sure to do that. Also managed to (finally) discover a few slot1 PIII still floating around. Even found one of those rare 1GHz (100 fsb) you mentioned, but when I clicked for additional info, it seemed like it maybe was a typo cause the info described a 850MHz.

Thanks for putting up with me, Helznicht.

 

[Helznicht]

No Problem, heck I learned something today too, the BX being able to adjust the PCI divider. Actually, Im in the market for one now (or a BE6) which ever I find first.

 

[apoppin]

<< I would stay away from the 133fsb chips, as on the BX platform, when you run over 100 fsb, you start running your PCI and AGP out of spec and some hardware might not like it. >>



Only the AGP is out of spec. There is a BIOS option for 1/4 PCI divider at 124 FSB and higher on this board. I'd still choose a 100FSB 1Ghz PIII since a minor overclock might be possible.

Since Intel locks the clock multiplier, the Abit BX6(r.2) will likely support the 1Ghz PIII. Didn't one of the major hardware sites benchmark newer BX boards with 1Ghz PIIIs?

Mine easily supports my 600E @ 800Mhz (133FSB) and my PCI cards are all in spec (my Radeon 64 VIVO doesn't mind the higher AGP).

But it looks like the end for my 3-year-old faithful friend when I upgrade. 200Mhz more doesn't excite me and the .13 micron PIIIs (IF they ever get released) won't work in my BX board.

 

[Baba]

I updated my BIOS last night and the highest available multiplier to be set manually is now x9.

With atleast two people here running fine on 133 FSB i'd say it safe to do so. If I can find a 800 or 850MHz PIII 100FSB for a good price I'll get that, else I'll go for the 1GHz.

Thanks all for helping out.