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Beware the overclocked PCI bus!
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: Beware the overclocked PCI bus!
- From: Andy Ingraham 28-Jan-1997 1046 <ingraham@wrksys.ENET.dec.com>
- Date: Tue, 28 Jan 97 10:54:13 EST
- Apparently-To: pci-sig@znyx.com
- Cc: ingraham@wrksys.ENET.dec.com
- Resent-Date: Tue, 28 Jan 97 10:54:13 EST
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-Id: <"h41Cc.0.oU4.kCYxo"@dart>
- Resent-Sender: pci-sig-request@znyx.com
A co-worker found the following notice on the Cyrix web site, about a
motherboard (by FIC or FICA Inc.) that over-clocks the PCI system:
NOTE: The PCI bus runs "out of spec" (37.5 MHz) for the PR200+.
Contact FIC for the recommended list of PCI peripherals.
This shaves 3.33 ns off the minimum PCI cycle time. As mentioned in
the notice, the motherboard won't work with many PCI cards.
Are there other known cases of PCI over-clocking or otherwise
intentionally violating the PCI electrical specs?
Regards,
Andy Ingraham
(Cyrix updated their 3rd-party motherboard web page yesterday, so if
you go looking for it, you might not find the warning anymore.)
; ¨ –