Re: 3.3V PCI Motherboard

[Terje Melsom <terje@vmetro.no>]

Wen-King Su wrote:

> >None of the manufacturers tend to brag about their 3.3V or 5V
> >signalling.  But they do brag when they have 66Mhz slots.  All
> >the 66Mhz slots are 3.3V signalling by requirement.  Many, but
> >not all of the 3.3V 66Mhz slots on systems can often run at 33Mhz
> >with 3.3V signalling.
>
> Intel Lancewood L440GX motherboard has 32-bit 5V pci slots that
> runs at 66 MHz.

This has surprised me since I saw the motherboard for the first time.
The spec states clearly that "The 66 MHz PCI bus uses the 3.3V signaling
environment". I would expect Intel to have the influence required to get
5V/66MHz written into the specification if it is technically safe.

--
Terje Melsom