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"Old" Athlon with new KT133A Chipset

D

digito

Junior Member
Hi.

I'm planning to buy a motherboard with the new KT133A Chipset (with 133 FSB support), but I'm wondering if I can overclock an "old" Athlon Thunderbird to 133Mhz FSB.
For instance, grab an Athlon 800Mhz (8x100Mhz), and put it to 1064Mhz (8x133Mhz) or even lowering the multiplier to 7.5 or 7, but keeping the FSB to 133Mhz.

Or only the new Athlon (1.2Ghz ond up) support the 133Mhz FSB? AFAIK, "officially" this is so, but have anyone tryed the new chipset?

Thanks.
 
I have the same question...

Can the current T'birds and Durons run at 133fsb?

Or, if I get a 133A mobo, will I only see the performance improvement using a 1.2ghz or faster T'bird?
 
While nobody can say that EVERY 100fsb TBIRD/DURON will reach 133 or higher, there's plenty of articles around the net of normal BIRDS/Durons reaching as high as 150 fsb with good ram. You will have to lower the multiplier but tests that I have seen shoe a Duron running 1 gig with 133 fsb performed within 1 % of a TBIRD 1 gig running 100fsb.
 
A cpu doesn't care which FSB it's running at. For instance, a 700 Mhz cpu would be just as happy at 700x1 as it is at 100x7.
 
Yep, if the chip is guarenteed to run at 800Mhz, it can be run at 8x100 or 6x133 - it doesn't matter. The limitation previously was with the KT133 chipset, which would only handle around ~110-120FSB Max. Now though with this KT133A chipset, you can expect it to run at 150Mhz and beyond, as long as the rest of your components are up for it 🙂

Btw, the Abit and Asus 133A boards are already available here in the UK.
 
Cool! Thanks for the input!😀

It seems like every hour I'm checking for availability of the Abit and Epox boards.

I found the Epox 8KTA3 for $130 but the 8KTA3+ is on back-order ($140), which is what I want.

No word on the Abit KT7A's yet.

What's the Asus model? I can't seem to find it on their website.
 
It's called the Asus A7V-133:

- 200/266MHz FSB
- PC133/VC133 DRAM compatability
- UltraDMA 100
- AGP Pro 4X
- RAID 0 support

Some motherboards may have on-board sound which can be disabled if required.
 
Great!😀

AFAIK, There are a few MB with the new chipset:

Asus A7V133, Abit KT7A-RAID, QDI K7E, DFI AK74-AC, the one from Epox and I think there's also one from Gigabyte, but not sure.

Thanks for the input. I'll wait for one of those.
 
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