See below & refer to:
http://www.viahardware.com/faq/kt7/kt7faq.htm
1: TRY - RESTORE BIOS DEFAULTS BEFORE CHANGING PROCESSOR
2: Version 3C (11 June 2001)
Suitable for KT7, KT7-RAID, KT7A, KT7A-RAID, KT7E
HPT370 RAID BIOS version 1.11.0402
BIOS compile date: 05/11/2001
Reported bugs - INCLUDES:
Apparently incorrectly recognises 5x multiplier. eg. 5.0x100 gives 14.0x36(504), 5.0x133 = 14.0x48. This is due to the way AMD have re-used the x5 multiplier pin configuration on the 1400MHz processor to denote a 14x multiplier. As 500MHz Thunderbirds were never produced, the BIOS assumes x5 means x14 and so calculates the bus speed as 500/14=36 or 665/14=48. This is a display issue only: the correct FSB and multiplier are used.
Hope it helps