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xRichard Amies

Overclocking your PC

An Introduction

July 2000

Page One | Page Two | Page Three | Page Four


Section 2: How to Overclock my machine (Part 1)

Just about any Intel processor is overclockable, but the extent to which they can be pushed is very varied. The following table should give a rough Idea of how far each chip can go, and how far it might go with extra cooling. This table is not guaranteed or certified by myself in any way, and doesn't cover any chips below the P75 chip. Yours may go higher; unfortunately it might not go at all.

(Probable Speed is probably available without touching the voltage or cooling, Possible Speed is possibly available with standard voltage/cooling, but will probably need modifications in both areas and even then, may not hit the target).

1. Introduction - What is Overclocking?

2. How to Overclock my machine (Part 1)

How to Overclock my machine (Part 2)

3. How to maintain stability and fix problems

4. Conclusion


Original Speed Probable Speed Possible Speed

P75  90 100 
P90 100 ---
P100 120 ---
P120 133 150
P133 ---- ---
P150 166 180
P166 180 200
P200 233 ---
     
P166MMX 200 233
P200MMX 233 250
P233MMX 250 263
     
PII 233 263 291
PII 266 300 333
PII 300 338 375
PII 333 375 417
PII 350$ 392 434
PII 400$ 448 496
PII 450$ 504 558
     
PIII 450$ 504 558
PIII 500$ 560 620


(We are only covering these PIIIs because the newer P3s are based on a 'Flip-Chip' design and have not been tested that much)
     
Celeron 266 (0Kb Cache)  300 333 (400*)
Celeron 300 (0Kb Cache) 338 375 (450*)
Celeron 300a (128Kb Cache) 375 450
Celeron 333 375 417
Celeron 366 458 550
Celeron 400 450 500
Celeron 433 488 541
Celeron 466 525 583
Celeron 500 563 ---


* Indicates that they have a greater than normal chance of hitting the probable speed.
(Again, we are not covering the 'Flip-Chip' Celerons, or Celeron IIs as they are starting to become known).


$ Indicates 100MHz FSB speed as standard. All others are 66.67MHz FSB speed as standard.

Continued . . . (Part 2)

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