http://www.alphalinux.org/wiki/index.php?title=Personal_Workstation&feed=atom&action=historyPersonal Workstation - Revision history2024-03-29T00:25:35ZRevision history for this page on the wikiMediaWiki 1.31.7http://www.alphalinux.org/wiki/index.php?title=Personal_Workstation&diff=97&oldid=prevGareth: Imported from http://web.archive.org/web/20100713114357/http://www.alphalinux.org/wiki/index.php?title=Personal_Workstation&action=edit2019-08-30T06:46:01Z<p>Imported from http://web.archive.org/web/20100713114357/http://www.alphalinux.org/wiki/index.php?title=Personal_Workstation&action=edit</p>
<p><b>New page</b></p><div>The Digital Personal Workstation a-Series, code named "''[[Miata]]''", used the [[Alpha 21164|Alpha 21164A]] microprocessor. Models suffixed with "'''a'''" ran Windows NT (with AlphaBIOS) whereas models suffixed with "'''au'''" ran Digital UNIX or OpenVMS (with [[System Reference Manual|SRM]]). At [[COMDEX]] 1997, the Digital Personal Workstation 500a was a finalist in [[Byte Magazine]]'s Best of Show award for the best workstation category.<ref>[http://www.byte.com/art/9708/sec3/art3.htm "Natural Dictation Wins Best of Comdex". Byte, August 1997]</ref><br />
<br />
Models included the:<br />
<br />
* '''433a'''/'''433au''' - 433 MHz Alpha 21164A<br />
* '''500a'''/'''500au''' - 500 MHz Alpha 21164A<br />
* '''600a'''/'''600au''' - 600 MHz Alpha 21164A<br />
<br />
The Alpha microprocessor was socketed in a [[zero insertion force]] (ZIF) [[CPU socket|socket]] and could be upgraded. These workstations used Digital's '''[[Alpha 21164#Chipsets|21174]]''' chipset, also known as the "Pyxis" chipset. To increase flexibility and to reduce cost, the L3 cache was optional in these models. If the L3 cache was required, a '''cache module''' that contained the SRAMs which implemented the cache would be installed into a '''cache slot'''. The cache module had two capacities: 2 or 4 MB.<br />
<br />
Two revisions of the ''Miata'' [[motherboard]] were produced, known as ''MX5'' and ''MiataGL'' respectively. The later MiataGL motherboard has a revised Pyxis chipset (which fixes a [[Peripheral Component Interconnect|PCI]] [[Direct memory access|DMA]] bug), a different [[AT Attachment|ATA]] controller, an on-board [[QLogic]] 1040 [[SCSI]] host adapter, and a [[USB]] interface.<ref><br />
{{cite web<br />
|url=http://www.freebsd.org/releases/6.3R/hardware-alpha.html#AEN187<br />
|title=FreeBSD/alpha 6.3-RELEASE Hardware Notes<br />
|work=www.freebsd.org<br />
|author=The FreeBSD Documentation Project<br />
|date=2008-01-17<br />
|accessdate=2008-10-21<br />
}}</ref><br />
<br />
The a-Series has a 144-bit memory bus, with 128 bits used for data and 16 bits for ECC. There are three memory banks, each consisting of two DIMM slots, for a total of six DIMM slots, which supports 32 MB to 1.5 GB of memory. The a-Series uses buffered or unbuffered PC100 ECC SD-RAM. Vendor supplied modules are twice as tall as standard DIMMs and contain two rows of SDRAMs per column instead of one. These DIMMs are installed in identical pairs in order to match the width of the memory bus. Jumer<br />
<br />
== Jumper Settings ==<br />
<br />
'1' is a switch with the tab in the 'up' or 'on' position<br />
'0' is a switch with the tab in the 'down' or 'off' position<br />
If flipping the switches, use care as the switches can be<br />
delicate. Please read carefully and double check everything.<br />
Read entire document before trying anything.<br />
<br />
Left to Right<br />
<br />
CLK MMMM MMM<br />
RATE 6543 210N<br />
<br />
266 -> 0000 1001<br />
300 -> 0100 1001<br />
333 -> 0010 1001<br />
366 -> 0110 1001<br />
400 -> 0001 1001<br />
433 -> 0101 1001 - PWS 433a <br />
466 -> 0011 1001<br />
500 -> 0111 1001 - PWS 500a<br />
533 -> 0000 0101<br />
566 -> 0100 0101<br />
600 -> 0010 0101 - PWS 600a<br />
633 -> 0110 0101<br />
667 -> 0001 0101<br />
700 -> 0101 0101<br />
733 -> 0011 0101<br />
766 -> 0111 0101 - Kryotech?<br />
800 -> 0000 1101<br />
<br />
N -> Reserved - Always on<br />
Mx -> Clock multiplier digits. The lower the number, the higher<br />
the digit's significance. M0 and M6 seem to be always 0<br />
<br />
== Notes ==<br />
<br />
{{Reflist}}<br />
<br />
== References ==<br />
*{{cite web<br />
|url=http://news.cnet.com/Digital-has-600-MHz-workstation/2100-1001_3-279476.html<br />
|title=Digital has 600-MHz workstation<br />
|work=[[CNET News]]<br />
|author=Jim Davis<br />
|date=1997-05-05<br />
|accessdate=2008-10-21<br />
}}<br />
* Weiss, Kenneth M.; House, Kenneth A. (1997). [http://www.hpl.hp.com/hpjournal/dtj/vol9num2/vol9num2art4.pdf "Digital Personal Workstations: The design of high-performance, low-cost Alpha systems"]. ''Digital Technical Journal'' '''9''' (20): pp. 45&ndash;56.<br />
[[Category:Hardware]]<br />
[[Category:AlphaStation]]</div>Gareth