[SI-LIST] Re: PCI at 66 Mhz
- From: James Tidman <jtidman@xxxxxxxxxxxxxx>
- To: SI <si-list@xxxxxxxxxxxxx>
- Date: Fri, 31 Aug 2001 07:10:53 -0500
Dell sells many machines with two 66 mhz, 64 bit slots...........
-----Original Message-----
From: david_instone@xxxxxxxxxxxxxx [mailto:david_instone@xxxxxxxxxxxxxx]
Sent: Friday, August 31, 2001 3:14 AM
To: SI
Subject: [SI-LIST] Re: PCI at 66 Mhz
This is somewhat of the original topic, but if I have a PCI ultra160
SCSI adapter card and plug it into a 33MHz 32 bit PCI bus I think the
max throughput would be 4 * 33 = 132 MBytes per sec, so I'm never going
to be able to get 160 MB/s continuous out of the drive. It would
appear that I would need to use a 66MHz PCI bus to achieve this, which
limits me to only one other card in the PC.
Am I right?
> The PCI Spec does hint that it may be impossible to
> have more than one PCI card per 66 MHz PCI bus, but I am aware that people
> have made 66 MHz PCI work with two card slots. How well they work, I
can't
> say. "It ain't easy."
--
Regards
Dave Instone.
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