Please Help: Can I put a 1.4 266fsb processor in a mobo that only supports 200fsb?

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CKDragon

Diamond Member
Jan 22, 2001
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Hey guys,

My girlfriend's family's lousy computer broke down recently (Didn't even POST) and after replacing every part piece by piece, we found that the processor was at fault. It booted up fine with her old computer's 850 Duron.

The motherboard is an ancient hp KL133 POS which says it only supports a Socket A 200FSB processor. Previously, they had an AMD TBird 1.4 200FSB in it. I can only find one USED 1.4 200FSB processor on eBay going for $90 with several days left.

My main question is: Is it possible to buy a 1.4 266FSB and have it work fine?

Thanks for any help you can provide,

CK
 
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CKDragon

Diamond Member
Jan 22, 2001
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Thanks for the quick reply.

I'm not sure if it will work. I tried searching for information on the chipset and there's not much out there. Here is the Product Specs page from HP: link

I doubt many ATOTers own an HP computer, but maybe someone has experience with the KL133 chipset.

Thanks,

CK
 
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GonzoDaGr8

Platinum Member
Apr 29, 2001
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Chances are extremely thin being that it is a proprietary machine. You will have zero BIOS options to work with. I was going to say that you could unlock the multiplier and jack it up while still retaining the 200fsb. Doesn't sound like that is going to happen. If it's any consolation, The Duron's still have the 200fsb on them. You might be able to try that.
 
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DarkSarkas

Member
Oct 29, 2003
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Originally posted by: GonzoDaGr8
Chances are extremely thin being that it is a proprietary machine. You will have zero BIOS options to work with. I was going to say that you could unlock the multiplier and jack it up while still retaining the 200fsb. Doesn't sound like that is going to happen. If it's any consolation, The Duron's still have the 200fsb on them. You might be able to try that.
Click to expand...

Actually, new durons (1.6/1.8) run with a 266 fsb (or at least these are the specs from AMD's website).


But yes, it should work in the computer, it will just run at 1.05ghz, (10.5x100).
 
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GonzoDaGr8

Platinum Member
Apr 29, 2001
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Actually, new durons (1.6/1.8) run with a 266 fsb (or at least these are the specs from AMD's website).
Click to expand...
Ahh yes, You are correct. That little tidbit slipped my brain.
 
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kenshorin

Golden Member
Apr 14, 2001
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Actually its a little more difficult than that... a friend of mine tried this, and the chip did run at the speed everyone listed. But since the voltages weren't the same, the system was terribly unstable.
 
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aka1nas

Diamond Member
Aug 30, 2001
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Originally posted by: kenshorin
Actually its a little more difficult than that... a friend of mine tried this, and the chip did run at the speed everyone listed. But since the voltages weren't the same, the system was terribly unstable.
Click to expand...

The voltages ought to be higher for the older CPU right? Why not just get a higher voltage 266Mhz athlon in that case? If it was lower, than get the lowest voltage duron you can find.
 
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CKDragon

Diamond Member
Jan 22, 2001
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Thanks for all your replies, guys. FishTankX, I'd really like to see what's at your link but it looks like www.starmicro.net is having problems on their end right now. I'll check again tomorrow.

I looked on eBay and found Duron processors that are 1.2 with a 200fsb for only $33+shipping. I'm not sure of the voltage they use, but do you think that these would work? I know they wouldn't be AS FAST as the original 1.4 TBird, but her family would survive.

Thanks again for all your help, it is greatly appreciated.

CK
 
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CKDragon

Diamond Member
Jan 22, 2001
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Thanks Fishtank, I see they have up to a 1.4 200fsb on that site. That's excellent. Just out of curiousity so I can pass on all their pricing options, would anyone happen to have an answer about my 1.2 200fsb duron question I posed above?

Thanks,

CK
 
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FishTankX

Platinum Member
Oct 6, 2001
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I wouldn't use any duron over 1GHz. They eventually made the transition to the palomino core which changed the core.

Duron 700-950 should be fine. Be warned, they're a bit harder to cool since the cache is missing.
 
K

kenshorin

Golden Member
Apr 14, 2001
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Originally posted by: aka1nas
Originally posted by: kenshorin
Actually its a little more difficult than that... a friend of mine tried this, and the chip did run at the speed everyone listed. But since the voltages weren't the same, the system was terribly unstable.
Click to expand...

The voltages ought to be higher for the older CPU right? Why not just get a higher voltage 266Mhz athlon in that case? If it was lower, than get the lowest voltage duron you can find.
Click to expand...

Thats what we thought, but it just never seemed to jive right. He had huge issues with it, and I helped him out with it after he got brain freeze with it, and it was one big ol PITA. The motherboard was kinda a cheapo special but ran OK with an older 200 FSB chip in it (borrowed one from a friend as a test)... PSU tested fine, cpu worked on another friend's newer board... we eliminated everything, it was just the CPU / mobo combo together which didn't go well, and it def had the feel of voltage issues in what was occuring.
 
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