Talk:PCI-X

message: The following reference: http://www.it-enquirer.com/main/ite/more/pci_xpci_express/ goes to a tutorial on 3d graphic design, it appears the site sourced doesn't contain any information on computer hardware. Real reference on PCI-X vs PCI-e would be preferable.  —Preceding unsigned comment added by 89.201.92.249 (talk) 07:27, 26 March 2008 (UTC)
replies: text: Fixed this page has changed since the access date now has reference to archival copy at http://web.archive.org/web/20070402205111/http://www.it-enquirer.com/main/ite/more/pci_xpci_express/ .Phatom87 (talk • contribs) 16:05, 26 March 2008 (UTC)
thread_title:  Questionable reference 

message: I never really have seen a true PCI-X slot before. What uses it and where is it on wikipedia? PCI-X and PCI-e are separate things, so what is PCI-X then??? Bourgeoisdude 23:51, 17 April 2006 (UTC)
replies: text: PCI-X is a computer bus, like PCI, and PCI Express. PCI-X came after PCI but before PCI Express. It was used on some server motherboards, but wasnt used in normal desktop computers. -- Frap 01:56, 16 May 2006 (UTC)
thread_title: WHERE IS PCI-X?

message: "PCI-X buses are unidirectional whereas PCIe buses are bidirectional" is exactly backwards.  I think what is meant is PCI-X is only half-duplex (the data bus is implemented with parallel bidirectional signalling, which can only communicate in one direction at at time) while PCIe is full duplex (implemented with serial unidirectional signalling, i.e. separate transmit and receive traces, so there can be communication in both directions at the same time). 216.241.229.58 18:10, 25 July 2006 (UTC)
thread_title:  direction confusion 

message: :A PCI-X card cannot, however, be installed in a PCI slot due to the edge connector configuration.
::I inserted a PCI-X SCSI card (64-bit, 133M, universally-keyed) into a 32-bit PCI slot on an ordinary motherboard and it works.--202.77.13.1 09:37, 16 February 2007 (UTC)
replies: text: I've corrected that, the important factors with all versions of PCI are the voltage keying and the physical space issue (e.g. whether there is anything on the motherboard that would block the overhanging of a 64 bit card). Plugwash 01:42, 17 February 2007 (UTC)
replies: text: I can not see the correction. Did you just remove the sentence? It would be nice to have a couple of sentences about plugging a PCI-X card into PCI slot, for completeness.  —Preceding unsigned comment added by 116.89.224.136 (talk) 00:56, 21 July 2009 (UTC)
replies: text: I've also used an Adaptec 21610SA PCI-X SATA RAID card on a 32-bit PCI slot, and it worked fine. Seems both this article and Conventional PCI article now refer to this LaCie page for the fact that PCI-X doesn't work in PCI, but I figure that page must be wrong then. E.g. this page from PC Magazine seems to apparently correctly say that "PCI-X cards will run in PCI slots, but at the slower PCI rates". Anssi (talk) 11:49, 23 December 2011 (UTC)
thread_title:  Plug a PCI-X card into PCI slot 

message: Does a 32-bit regular PCI card work in a PCI-X 64/133MHz slot?
12.11.149.5 22:50, 20 April 2007 (UTC)
replies: text: Yes with a couple of caveats. Firstly the card must suport 3.3V and have the 3.3V notch which a large proportion (more than half in my experiance) of 32 bit cards don't. Secondly it will also slow the entire bus down to whatever maximum speed the card supports. Plugwash 13:55, 23 April 2007 (UTC)
thread_title:  32-bit PCI card, in a 64-bit PCI-X slot? 

message: A lot of server/workstation motherboards have PCI-X slots listed as 133/100mHz. Can these slots "clock down" to 33mHz, so that cards that can only run at 33mHz work? Or do they only run at what is listed in the specification, e.g. 133 or 100 mHz? 
12.11.149.5 21:50, 23 April 2007 (UTC)
thread_title:  Must PCI-X bus support all PCI bus speeds, e.g. 33mHz? 

message: There's info repeated two or three times in it. Could be about half as long.  —Preceding unsigned comment added by Bizzybody (talk • contribs) 08:15, 8 October 2007 (UTC)
replies: text: Yes it looked like paragraphs or sentences were duped / edited once or twice then shuffled.  This has been cleaned up, along with some minor copy/link editing. -Onceler 08:23, 26 October 2007 (UTC)
thread_title:  Background section needs cleanup 

message: I'm sitting in front of three servers with PCI-X slots, and there's no way you could put any PCI card into any of them. There's a key in the way. What's the source of this backwards compatibleness sentence?
70.185.248.54 (talk) 11:16, 9 March 2010 (UTC)
replies: text: I also have various raid controllers that will not fit on a normal PCI slot due to voltage keying.
They will neither fit 32 or 64bit slots. One is a HP Smartarray (model 6504 i think). The other one is a ICP Vortex ICP9014RO. Both got the PCI-X 133 logo. So I think that everything from 133MHz is not backward compatible.
82.135.62.109 (talk) 17:30, 20 October 2010 (UTC)
replies: text: The original (and still the most common) variant of PCI was 5V 33MHz. Higher speeds of PCI slot (including PCI-X) are always 3.3V. 5V and 3.3V cards are keyed differently.  Most modern cards are universal voltage and can work in either voltage of slot but you do still see single voltage cards. Plugwash (talk) 21:30, 20 October 2010 (UTC)
thread_title:  PCI-X "Backward Compatible"?? 

message: I notice the final sentence of the summary is marked with [citation needed], but I feel as though this falls into the category of subject-specific common knowledge. Thoughts? See: Wikipedia:When to cite.  — Preceding unsigned comment added by CDel921 (talk • contribs) 17:31, 9 November 2012 (UTC)
thread_title:  Phaseout of PCI-X in Favor of PCI-E: Is a citation really needed? 

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thread_title:  External links modified