**hardware fixes (AMD K6, K6-2 and K6-III in Socket 7 boards)**

Most older mainboards feature only Socket 7 instead of the required SuperSocket
7. AMD K6-2 and K6-III are designed for a front side bus (FSB) of 100 MHz provided
by SuperSocket 7. Socket 7 only allows speeds of up to 66MHz FSB although some
manufacturers specified their boards for 75/83 MHz. So the only way of getting
your K6 running at full speed is lowering the FSB to 66/75/83MHz and rising
the multiplicator (4.5 x 66MHz is same as 3.0 x 100MHz). Using the fast K6 processors
in such older boards means something like *underclocking*. But for your
computer it is more than a small performance boost.

The following table shows the official settings for AMD K6 CPUs and on the right
side usable settings in your board. Green fits perfectly, yellow uses a lower
speed than possible and red is definitly overclocking. All values are the closest
possible with the given FSB.

**Note: To get the multiplier value of 6.0x you need a K6-2CXT or K6-III which
take the jumpered 2.0x as 6.0x.**

AMD K6 / K6-2 / K6-III |
|||||

CPU | Vcore | official settings | Socket7 w/ FSB66 | Socket7 w/ FSB75 | Socket 7 w/ FSB83 |

K6 166MHz | 2.9V | 166= 66 x 2.5 | |||

K6 200MHz | 2.9V | 200= 66 x 3.0 | |||

K6 233MHz | 2.2V / 3.2V | 233= 66 x 3.5 | |||

K6 266MHz | 2.2V | 266= 66 x 4.0 | |||

K6 300MHz | 2.2V | 300= 66 x 4.5 | |||

K6-2 233MHz | 2.2V | 233= 66 x 3.5 | |||

K6-2 266MHz | 2.2V | 266= 66 x 4.0 | |||

K6-2 300MHz | 2.2V | 300= 66 x 4.5 | |||

K6-2 333MHz | 2.2V | 333= 66 x 5.0 | |||

K6-2 366MHz | 2.2V | 366= 66 x 5.5 | |||

K6-2CXT 300MHz | 2.2V | 300= 100 x 3.0 | 300= 66 x 4.5 | 300= 75 x 4.0 | 290= 83 x 3.5 |

K6-2CXT 333MHz | 2.2V | 333= 95 x 3.5 | 333= 66 x 5.0 | 338= 75 x 4.5 | 333= 83 x 4.0 |

K6-2CXT 350MHz | 2.2V | 350= 100 x 3.5 | 366= 66 x 5.5 | 338= 75 x 4.5 | 333= 83 x 4.0 |

K6-2CXT 380MHz | 2.2V | 380= 95 x 4.0 | 366= 66 x 5.5 | 375= 75 x 5.0 | 374= 83 x 4.5 |

K6-2CXT 400MHz | 2.2V | 400= 100 x 4.0 | 400= 66 x 6.0 | 413= 75 x 5.5 | 415= 83 x 5.0 |

K6-2CXT 450MHz | 2.2V / 2.4V | 450= 100 x4.5 | 450= 75 x 6.0 | 457= 83 x 5.5 | |

K6-2CXT 475MHz | 2.2V / 2.4V | 475= 95 x 5.0 | 457= 83 x 5.5 | ||

K6-2CXT 500MHz | 2.2V | 500= 100 x 5.0 | 500= 83 x 6.0 | ||

K6-2CXT 533MHz | 2.2V | 533= 97 x 5.5 | |||

K6-III 380MHz | 2.4V | 380= 95 x 4.0 | 366= 66 x 5.5 | 375= 75 x 5.0 | 374= 83 x 4.5 |

K6-III 400MHz | 2.2V / 2.4V | 400= 100 x 4.0 | 400= 66 x 6.0 | 413= 75 x 5.5 | 415= 83 x 5.0 |

K6-III 450MHz | 2.2V / 2.4V | 450= 100 x 4.5 | 450= 75 x 6.0 | 457= 83 x 5.5 | |

K6-III 500MHz | 2.2 V | 500= 100 x 5.0 | 500= 83 x 6.0 |

For correct settings of your multiplicator jumpers
refer to this page.

AMD K6 has higher power consumption than intel Pentium. Therefore you'll have
to check if your board supports every clock rate. Otherwise you'll make a nice
barbecue out of your voltage regulators.

This table lists supported current draw for
many older boards.

This table lists power consumption
of AMD K6 and other CPUs.

Power Consumption (W [Watt]) = Core Voltage (V [Volt]) * Current draw (A [Ampere])

Supported boards:

ASUS

Abit

AOpen

Chaintech

Elitegroup

FIC (First International Computer)

Gigabyte

Iwill

NMC

PC-Chips

Tyan