| SYMBOL | |
| ? | NOT TESTED |
| ALL |
|
| * | CHANGE HEATSINK |
| ** | CHANGE FAN AND HEATSINK |
| *** | HUGE HEATSINK WITH MULTIPLE FAN
OR PELTIER |
| **** | HUGE HEATSINK
AND MULTIPLE FAN AND!! PELTIER MANDATORY!!! |
| RECORD:
FROM K6 266MMX @ 4 x 66 TO K6 455 @ 5 x 83 |
COOLED WITH A CLOSED CIRCUIT OF LIQUID FREON
AND EXTERNAL HEATSINK (don't do it at home) |
| PROCESSOR | Optimal | Safe | SOLVE
CPU Problem |
SOLVE
Board Problem |
| 75 MHz@1.5x50 | 112.5 MHz @ 1.5 x 75 MHz* | 100 MHz @ 1.5 x 66 MHz | 83 MHz @ 1.5 x 55 MHz | 90 MHz @ 1.5 x 60 MHz |
| 90 MHz@1.5x60 | 125 MHz @ 1.5 x 83 MHz* | 112.5 MHz @ 1.5 x 75 MHz | 100 MHz @ 1.5 x 66 MHz | |
| 100 MHz@1.5x66 | 125 MHz @ 1.5 x 83 MHz | 112.5 MHz @ 1.5 x 75 MHz | ||
| 120 MHz@2x60 | 125 MHz @ 1.5 x 83 MHz
150 MHz @ 2 x 75***? |
133 MHz @ 2 x 66 MHz | 112.5 MHz @ 1.5 x 75 MHz | |
| 133 MHz@2x66 | 166 MHz @ 2 x 83 MHz*
187 MHz @ 2.5 x 75***? |
150 MHz @ 2 x 75 MHz | 125 MHz @ 1.5 x 83 MHz | 166 MHz @ 2.5 x 66 MHz* |
| 150 MHz@2.5x60 | 166 MHz @ 2 x 83 MHz
208 MHz @ 2,5 x 83 ***? |
187.5 MHz @ 2.5 x 75 MHz | 150 MHz @ 2 x 75 MHz | 200 MHz @ 3 x 66 MHz** |
| 166 MHz @2.5x66 | 208 Mhz @ 2.5 x 83 Mhz** | 187.5 MHz @ 2.5 x 75 MHz | 166 MHz @ 2 x 83 MHz | 200 MHz @ 3 x 66 MHz* |
| 166 MMX
K6 166MMX@2.5x66 |
208 Mhz @ 2.5 x 83 Mhz
250 MHz @ 3 x 83*** |
187.5 MHz @ 2.5 x 75 MHz
225 MHz @ 3 x 75*** |
166 MHz @ 2 x 83 MHz | 200 MHz @ 3 x 66 MHz |
| 180 MHz PPro@3x60 | 233 MHz @ 3.5 x 66 MHz**
250 MHz @ 3 x 83 ****? |
225 MHz @ 3 x 75 MHz** | 208 MHz @ 2.5 x 83 MHz | 200 MHz @ 3 x 66 MHz |
| 200 MHz@3x66 | 250 MHz @ 3 x 83 MHz*** | 225 MHz @ 3 x 75 MHz | 208 Mhz @ 2.5 x 83 Mhz | 233 Mhz @ 3.5 x 66 Mhz* |
| 200MMX
K6 200MMX @3x66 |
250 MHz @ 3 x 83 MHz** | 225 MHz @ 3 x 75 MHz | 208 Mhz @ 2.5 x 83 Mhz | 233 Mhz @ 3.5 x 66 Mhz |
| P II 233 MMX
233MMX K6 233MMX@3.5x66 |
290 MHz @ 3.5 x 83 MHz** | 260 MHz @ 3.5 x 75 MHz | 250 MHz @ 3 x 83 MHz | 266 MHz @ 4 x 66 MHz |
| P II 266MMX
K6 266MMX@4x66 |
330 MHz @ 4 x 83 MHz***? | 300 MHz @ 4 x 75 MHz* | 290 MHz @ 3.5 x 83 MHz | 300 MHz @ 4.5 x 66 MHz* |
| P II 300 MMX
K6 300MMX@4.5x66 |
370 MHz @ 4.5 x 83 MHz***? | 340 MHz @ 4.5 x 75 MHz* | 330 MHz @ 4 x 83 MHz | 330 MHz @ 5 x 66 MHz |
| P II 333 MMX @5x66? | 370 MHz @ 4.5 x 83 MHz***?
375 MHz @ 5 x 75***? |
340 MHz @ 4.5 x 75 MHz? | 330 MHz @ 4 x 83 MHz? | 366 MHz @ 5.5 x 66 MHz? |
| BUS MHz | |||||||
| CPU TO BUS RATIO | 60 MHz | 66 MHz | 75 MHz | 83 MHz | 100 MHz | 112 MHz |
125 MHz |
| 1.5 | 90 MHZ @1.5x60 | 100 MHZ @1.5x66 | 112 MHZ @1.5x75 | 125 MHZ @1.5x83 | 150 MHZ @1.5x100 | 168 MHZ @1.5x112 | 187 MHZ
@1.5x125 |
| 2 | 120 MHZ @2x60 | 133 MHZ @2x66 | 150 MHZ @2x75 | 166 MHZ @2x83 | 200 MHZ @2x100 | 224 MHZ
@2x112 |
250 MHZ
@2x125 |
| 2.5 | 150 MHZ @2.5x60 | 166 MHZ @2.5x66 | 187 MHZ @2.5x75 | 208 MHZ @2.5x83 | 250 MHZ @2.5x100 | 280 MHZ
@2.5x112 |
312 MHZ
@2.5x125 |
| 3 | 180 MHZ @3x60 | 200 MHZ @3x66 | 225 MHZ @3x75 | 250 MHZ @3x83 | 300 MHZ @3x100 | 336 MHZ
@3x112 |
375 MHZ
@3x125 |
| 3.5 | 210 MHZ @3.5x60 | 233 MHZ @3.5x66 | 260 MHZ @3.5x75 | 290 MHZ @3.5x83 | 350 MHZ @3.5x100 | 392 MHZ
@3.5x112 |
437 MHZ
@3.5x125 |
| 4 | 240 MHZ @4x60 | 266 MHZ @4x66 | 300 MHZ @4x75 | 330 MHZ @4x83 | 400 MHZ @4x100 | 448 MHZ
@4x112 |
500 MHZ
@4x125 |
| 4.5 | 270 MHZ @4.5x60 | 300 MHZ @4.5x66 | 340 MHZ @4.5x75 | 370 MHZ @4.5x83 | 450 MHZ @4.5x100 | 504 MHZ
@4.5x112 |
562 MHZ
@4.5x125 |
| 5 | 300 MHZ @5x60 | 333 MHZ @5x66 | 375 MHZ @5x75 | 415 MHZ @5x83 | 500 MHZ @5x100 | 560 MHZ
@5x112 |
625 MHZ
@5x125 |
| 5.5 | 330 MHZ @5.5x60 | 366 MHZ @5.5x66 | 410 MHZ @5.5x75 | 455 MHZ @5.5x83 | 550 MHZ @5.5x100 | 616 MHZ
@5.5x112 |
687 MHZ
@5.5x125 |
| 6 | 360 MHZ @6x60 | 400 MHZ @6x66 | 450 MHZ @6x75 | 500 MHZ @6x83 | 600 MHZ @6x100 | 672 MHZ
@6x112 |
750 MHZ
@6x125 |
| 6.5 | 390 MHZ @6.5x60 | 430 MHZ @6.5x66 | 490 MHZ @6.5x75 | 540 MHZ @6.5x83 | 650 MHZ @6.5x100 | 728 MHZ
@6.5x112 |
812 MHZ
@6.5x125 |
|
|
|||
| TYPE OF GENERATOR | COMMENTS | DOCUMENTED BUS | UNDOCUMENTED BUS |
| Standard | supports only intel spec. | 50,60,66 | ------------- |
| First 75,83 | 75,83 are the resoult of an internal ratio (75=50x1.5
83=55x1.5) |
50,55,60,66
some 61,68 |
75,83 |
| Second generation 75,83 | native support of 75,83
some support turbo frequency for 75.83 |
50,55,60,66,75,83
some 61,68 |
some 77,85 |
| First 100 | same as first 83 .Internal ratio extended to 60,66 | 50,55,60(61),66(68)
75,83,100=66x1.5 |
90=60x1.5
some77,85,92,102 |
| Second 100 and above | 75,83 are native
for higher bus the 1.5 ratio is needed |
50,55,60(61),66(68)
75,83,100=66x1.5 |
90=60x1.5 112=75x1.5
125=83x1.5 some77,85,92,102,114,128 |