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athlon xp 2100+ processor
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Posted by: heyman412
I have a 2100+ athlon xp buit it is registered as a 1500+ on the cpuid software. What is the fsb for this processor? It is on the new throughbred core. Also, what is the clock ratio and any other settings I amy need for it to work properly? My options for my Gigabyte mobo is 100mhz or 266/333 mhz for fsb. It is the GA-7VAXP Ultra. Thanks a lot.
Posted by: taco_fox
The FSB should be 133. You must have accidently forgot to switch a jumper.
The ratio is 13, but you don't need to worry about that since you can't change it without unlocking the chip.
Posted by: pakenney38
For the 2100+, you definitely need a 266 MHz bus. Your mobo should work just fine. It supports up to a 2600+.
Posted by: Outlaw
 Quote:
Originally posted by pakenney38
For the 2100+, you definitely need a 266 MHz bus.
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The FSB gets doubled internally (or something  ), so radarblib is right, it should be set at 133 
Edit: Now that I read his first post again, 133 doesn't seem to be possible, I've never seen a bios where you couldn't choose 133 though...
Posted by: taco_fox
266 would be the same as 133
Posted by: pakenney38
Correct - 266 is the same as 133, but when you're making the distinction for the CMOS setup on that particular motherboard, the setting must be 266/333, or the 2100+ won't work correctly. It will wind up looking like a different proc, and the DDR 266MHz memory will be underclocked. The 133 option is in there for older Athlons, and the board also supports 133MHz RAM. Somewhat strange to include this, but it does.
Also, your vcore on this board should be manually set to whatever the 2100+ designates. Probably around 6.5v, I think I read. Some people set this down about .3 or .2 just for heat issues, but it's silly. Sometimes Gigabyte boards don't detect this correctly though, it's important to note.
Posted by: taco_fox
Quote:
Originally posted by pakenney38
Correct - 266 is the same as 133, but when you're making the distinction for the CMOS setup on that particular motherboard, the setting must be 266/333, or the 2100+ won't work correctly. It will wind up looking like a different proc, and the DDR 266MHz memory will be underclocked. The 133 option is in there for older Athlons, and the board also supports 133MHz RAM. Somewhat strange to include this, but it does.
Also, your vcore on this board should be manually set to whatever the 2100+ designates. Probably around 6.5v, I think I read. Some people set this down about .3 or .2 just for heat issues, but it's silly. Sometimes Gigabyte boards don't detect this correctly though, it's important to note.
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I don't think I've ever seen a motherboard that shows doubled FSB numbers. In most cases, RAM will be automatically adjusted to SPD, so he won't need to worry about that.
If you put any CPU at 6.5v it would probably explode. The normal vcore for Tbreds is 1.60v. This should automatically be set, and I don't recommend lowering it.
Posted by: pakenney38
I checked the manual for your motherboard and there is no 266/333 setting on it. So it doesn't make the distinction between Tbreds and Tbirds. You probably have to set your clock multiplier higher. It's actually a dip switch on this particular model.
Posted by: taco_fox
Motherboards use the non-doubled FSB number (ie 100 or 133, not 200 or 266). This peticular motherboard is quite able to handle the default 2100+ speed (133x13) without having to change more than a jumper or BIOS setting. And once more, you can't change the multiplier without modifying the chip itself.
The original poster hasn't come back, so we don't know if he has it fixed or not...
Posted by: GeForce_4_
Whats the diffrence between :
ATHLON
Thoroughbred , Thunderbird
What does it change in performance and how do I know which one I have`?
I have a 1800+ @ 1533Mhz
Posted by: slugo3
heres a brief explanation, basicly its the different versions of the chip and its size (they have gotten smaller)
http://www.pantherproducts.co.uk/Pr...roughbred.shtml
Posted by: taco_fox
They're just different designs that AMD has made. A Thunderbird is a regular Athlon and a Throroughbred is a new Athlon XP. These changes don't really change performance if you're not overclocking. Sometimes, like the change from the Palomino core to the Thoroughbred core, you get lower temperature due to smaller die size and lower vcores.
In your case, I'm pretty sure you have a Palomino core. Do you remember what it looked like? The small, shiny core would be a square shape. Look at the pic
edit: They don't always get smaller. The move from the Thoroughbred to the Barton made a bigger core due the increased on-die cache.
Posted by: GeForce_4_
thx alot though I have an ATHLON XP but I am not sure about palomino or barto ETC cuz I didnt build the system
Posted by: taco_fox
It's most likely a Palomino. Bartons don't come in 2100+ speed. If you want to know for sure, just go into your BIOS and check the vcore reading. If it's around 1.60v it's a Thoroughbred, and if it's higher (~1.75v) then it's a Palomino.
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