Athlon 1333c question

[iconoclastical]

Hi,

I'm looking at an auction for an Athlon 1333C processor for socket A.
As I understand it, the 1333C is designed for a FSB of 266Mhz. But my
motherboard has a fsb of only 200Mhz.

The seller insists that the 1333c will run with a fsb freq of either
200mhz or 266mhz. What I've read elsewhere is ambiguous on this point,
that the 1333c may not. Amd's own website wasn't specific on this
point.

Can anyone tell me if a 1333c athlon will run in a mobo with fsb of
only 200mhz?

Thank u

 

[RobV]

Hi,

I'm looking at an auction for an Athlon 1333C processor for socket A.
As I understand it, the 1333C is designed for a FSB of 266Mhz. But my
motherboard has a fsb of only 200Mhz.

The seller insists that the 1333c will run with a fsb freq of either
200mhz or 266mhz. What I've read elsewhere is ambiguous on this point,
that the 1333c may not. Amd's own website wasn't specific on this
point.

Can anyone tell me if a 1333c athlon will run in a mobo with fsb of
only 200mhz?

Thank u

It's been a while, but I've never heard of a Athlon 1333c. AMD CPUs
were listed according to the approximate equivalent speed of a Intel
CPU. The XP1500+ model runs at 1333 MHz with a FSB of 133 MHz (266 DDR)
and a x10 multiplier. That was supposed to be roughly equivalent to a
1.5 GHz Intel of the same type at that time, thus the XP1500+.

Will the CPU run at 200 Mhz DDR FSB speed? Probably, but slower than
it's supposed to, which would be about 1000 MHz.
Here's a link to the Athlon XP CPU "model" numbers and actual speeds:
http://www.doublehammer.com/winxp/amd_xp_speeds.htm

 

[SteveH]

It's been a while, but I've never heard of a Athlon 1333c. AMD CPUs
were listed according to the approximate equivalent speed of a Intel
CPU. The XP1500+ model runs at 1333 MHz with a FSB of 133 MHz (266
DDR) and a x10 multiplier. That was supposed to be roughly
equivalent to a 1.5 GHz Intel of the same type at that time, thus the
XP1500+.

Thats because its not an Athlon XP, it's a thunderbird which runs at 1333Mhz
at 266Mhz bus.

Will the CPU run at 200 Mhz DDR FSB speed? Probably, but slower than
it's supposed to, which would be about 1000 MHz.

Depends on the BIOS, but yeah. The good thing will be that it will run a bit
cooler, which with one of these will be an advantage.

SteveH

 

[RobV]

RobV wrote:
[snip]

It's been a while, but I've never heard of a Athlon 1333c. AMD CPUs
were listed according to the approximate equivalent speed of a Intel
CPU. The XP1500+ model runs at 1333 MHz with a FSB of 133 MHz (266
DDR) and a x10 multiplier. That was supposed to be roughly
equivalent to a 1.5 GHz Intel of the same type at that time, thus the
XP1500+.

Thats because its not an Athlon XP, it's a thunderbird which runs at
1333Mhz at 266Mhz bus.

It could be a Athlon with a Tbird core, but it's just as likely to be a
Athlon XP with a Palomino, Thoroughbred, Barton, or Thorton core; well,
at least a Palomino core. But, call it what you will, I believe I said
that it will run at 1333 MHz at 266 MHz FSB. Let me check....yeah,
that's what I said.

The Athlon series ended with the Thundrbird core that ran at 1.4 GHz
max. The Athlon XP series started with a Palomino core running at 1333
MHz, the XP-1500+ and was the first and slowest Athlon XP CPU.

[snip]

Iconoclastical, it's all come back now that I found a site with info
regarding the different cores, L2 cache size and speeds. What you need
to get from the seller is the Identification numbers on the CPU. It
will consist of numbers and letters, each of which is explained here for
the Athlon XP family:
http://www.cpu-world.com/info/id/AMD-K7-identification.html#Athlon_XP

An Athlon XP 1500+ with a Palomino core, for example, will be identified
this way: AX 1500 DMT3C. If any of the letters or numbers are
different, look it up in the chart.

If it is an older Athlon CPU with a Thunderbird core, then this chart
should be used:
http://www.cpu-world.com/info/AMD/AMD_Athlon.html

Near the bottom is the ID for the plain Athlon CPU, Thunderbird core at
the same speed:
A1333AMS3C (perhaps that's where the seller got the "C").

Make sure what core it is, as they each have different voltage and
current needs, and you'll need to confirm that your motherboard (and
PSU) can supply what it needs and that the BIOS can provide the proper
multiplier.

This link explains the difference between the differently named Athlon
XP cores.
A bit further down, it has pictures of the CPUs along with the ID number
on the left side and a short list of it's features (in most cases).
This should be all you'll need. If the seller doesn't (or can't, or
won't) give you a full ID number, don't buy it. You'll not know exactly
what it is.
http://www.cpu-world.com/CPUs/K7/TYPE-Athlon XP.html

 

[Victor]

Hi,

I'm looking at an auction for an Athlon 1333C processor for socket A.
As I understand it, the 1333C is designed for a FSB of 266Mhz. But my
motherboard has a fsb of only 200Mhz.

The seller insists that the 1333c will run with a fsb freq of either
200mhz or 266mhz. What I've read elsewhere is ambiguous on this point,
that the 1333c may not. Amd's own website wasn't specific on this
point.

 Can anyone tell me if a 1333c athlon will run in a mobo with fsb of
only 200mhz?

Thank u

It will run at reduced speed approx -1000ghz