what FSB?

Werty

Senior member
Aug 12, 2001
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i just wanna know what CPU Speed, Duron & Athlon, runs at FSB 200Mhz(2*100) & 266Mhz(2*133) :Q any help would be appreciated. and i mean on a non-overclocked system. :)
 

Rafael

Senior member
May 11, 2001
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All Durons are 100 Mhz FSB (200 Mhz DDR).
And Athlons can be either 100 Mhz(200 Mhz DDR) or 133 Mhz(266 Mhz DDR).
I dont know if Athlons under 1 Ghz are 133 Mhz. Never saw 1.
But over 1 Ghz you can find on both frequencies.
You have to look at the stepping code of the cpu on the core of it.
If it has a C at the end of the 1st line, its a 133 Mhz(266 Mhz DDR).
And if it has a B at the end of the 1st line, its a 100 Mhz(200 Mhz DDR).

Hope its help you!

Raf
 

Werty

Senior member
Aug 12, 2001
322
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thanks, Raphael... so now i think my MBoard is only limited to a 1000MHZ AMD CPU.. i should get TBIRD soon b4 it will be phased-out... :) ey, ru Thunderbird also come in 200 & 266 flavors? :)
 

Rand

Lifer
Oct 11, 1999
11,071
1
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All Durons are 200MHz FSB. All T-Birds below 1GHz are 200MHz FSB, in addition there are 100MHz FSB T-Birds at 1GHz, 1.1Ghz, 1.2GHz, 1.3GHz, and 1.4GHz.
There are 266MHz FSB T-Birds at 1GHz, 1.13GHz, 1.2GHz, 1.33GHz, and 1.4GHz.

AthlonMP's are available at both 1GHz and 1.2GHz in both 200MHz and 266MHz FSB.

That covers all currently available desktop AMD Athlon based processors.
 

RobsTV

Platinum Member
Feb 11, 2000
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It doesn't matter.
Yes, Durons ship at 200 FSB, and T-Birds ship at 200 and 266.
But, all three can run at the same FSB.
So a 266 T-Bird can run at 200MHz FSB, and a 200 Duron can run at 266.
Both a 200 MHz Duron and a 266MHz T-Bird can run at same 320MHz FSB (160x2).
It's the motherboard that ends up being the final factor.
 

Werty

Senior member
Aug 12, 2001
322
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yes :frown: my motherboard is the factor.. its a KT133 from PCPARTNER and im only allowed up to a FSB of 112 :frown: im currenly using Duron700 (no overclock).. and im wondering how far my MBoard allows...so i guess im momentarily stuck at 200Mhz(2*100) for the moment... need to upgrade soon..