This site will tell you what your CPU was rejected from when tested.Its a pretty cool site.Just input the three long numbers on your CPU and it will give you the info,follow instructions.I don't blame you if you don't feel like pulling your chip out.This was posted on another forum.Here is my stats on my 2100+.I sold this chip to my cousin. Athlon Code Reader
Athlon XP Processor------------- High-end
Core-------------------------------- Thoroughbred-B
CPU Model------------------------ 8
Performance Rating------------- 2100+
Working frequency-------------- 1733 MHz
Package Type--------------------- OPGA
Operating Voltage---------------- 1.6 V
Max Die Temperature------------ 90° C
L1 Cache Size--------------------- 128 KB
L2 Cache Size--------------------- 256 KB
Multiplier--------------------------- 13x
FSB Frequency-------------------- 266 MHz
Stepping Code-------------------- AIUHB
Manifacture Year------------------ 2003
Manifacture Week-----------------01
Production Batch----------------- M
Batch Production Number------ 0236
Downgraded from--------------- 2800+
Athlon XP Processor------------- High-end
Core-------------------------------- Thoroughbred-B
CPU Model------------------------ 8
Performance Rating------------- 2100+
Working frequency-------------- 1733 MHz
Package Type--------------------- OPGA
Operating Voltage---------------- 1.6 V
Max Die Temperature------------ 90° C
L1 Cache Size--------------------- 128 KB
L2 Cache Size--------------------- 256 KB
Multiplier--------------------------- 13x
FSB Frequency-------------------- 266 MHz
Stepping Code-------------------- AIUHB
Manifacture Year------------------ 2003
Manifacture Week-----------------01
Production Batch----------------- M
Batch Production Number------ 0236
Downgraded from--------------- 2800+