I installed a Jetway 867 motherboard – it works fine with the 700 Duron I have but no joy with the Athlon 1400 A1400AMSC – 266MHz model, the pedigree of the Athlon is unknown so that is possibly the issue – is it faulty?) – the motherboard has the latest bios and is rated for 266fsb Athlons (up to 2600XP)
There is a jumper to set the CPU clock speed – with the Duron and the jumper set on 100MHz it works fine. With the jumper removed (133MHz) the pc won’t work – no boot on start up which is technically correct.
Switching to the Athlon 1400, with the 100MHz setting no boot and also with the 133MHz setting no boot.
Now the motherboard also has settings in the bios – but these will only currently allow settings of 100 to 132. (Despite the manual stating 100-132 and 133 –200, it almost needs the other jumper setting to allow the higher values).
Additionally there are other jumpers to allow ratio settings from 5 to 12.5 – currently there are no jumpers fitted (the bios settings I assume taking precedence with the Duron in place)
So would putting jumpers in place on the ratio settings give the Athlon the settings it needs to operate despite the other 100/133 jumper having no positive effect on the Athlon. (It obviously works with the Duron in place since no boot at 133 – would the 133 setting work with the Duron if the ratio was set to 5x just to prove the system?) And would that then let the bios settings operate or is the Athlon likely to be faulty.
Any advice gratefully received.