Gareth: Imported from http://web.archive.org/web/20100713113631/http://www.alphalinux.org/wiki/index.php?title=UP1500&action=edit

2019-09-21T19:12:25Z

Imported from http://web.archive.org/web/20100713113631/http://www.alphalinux.org/wiki/index.php?title=UP1500&action=edit

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[[Image:UP1500.jpg|thumb|Samsung UP1500]]

The UP1500 is a motherboard built by [[Samsung]] and released in 2001.

== Hardware ==

[[Image:UP1500_diagram.jpg|thumb|UP1500 Functional Block Diagram]]

* 800 MHz [[Wikipedia:Alpha_21264#Alpha_21264B|EV68AL]] with 2/4/8MB external L2 cache<ref name="manual">{{cite web
| url = http://www.alphalinux.org/firmware/api/UP1500/UP1500%20User%27s%20Manual.pdf
| title = UP1500 User's Manual
| date = March 13, 2001
| format = PDF
| publisher = Samsung Electronics}}</ref> (8.5 GB/s<ref>{{cite web
| url = http://www.harddata.com/Systems/up15brief
| title = HP-SPx264-1500 Hardware Features
| archiveurl = http://web.archive.org/web/20030311052727/http://www.harddata.com/Systems/up15brief
| archivedate = March 11, 2003
}}</ref>)
* AMD-761 Chipset, ALi M1535D+ south bridge
* 4x 184-pin DIMMs, supports 128MB to 4GB of ECC Registered PC2100 RAM (2.13 GB/s<ref>{{cite web
| url = http://samsungelectronics.com/semiconductors/alpha_cpu/up1500/up1500.htm
| title = Samsung Semiconductor: UP1500
| archiveurl = http://web.archive.org/web/20020606002508/http://samsungelectronics.com/semiconductors/alpha_cpu/up1500/up1500.htm
| archivedate = June 6, 2002
}}</ref>)
* 1x AGP 4x (See limitations below)
* 3x 33 MHz 32-bit PCI slots
* DECchip 21143 Ethernet
* ALi M5451 Sound

A list of compatible hardware (SCSI controllers, graphics cards, RAM, etc.) can be found on the [[UP1500 Compatibility]] page.

=== Limitations ===

* The AGP slot accepts only 3.3V signalling cards, effectively limiting the selection of video cards to those supporting AGP 2x<ref>{{cite mailing list
|url=http://www.redhat.com/archives/axp-list/2008-November/msg00086.html
|title=Re: Graphics card for UP1500, AGP Compatibility and Signalling Voltages
|date=27 Nov 2008
|mailinglist=axp-list
|author=Alex Deucher}}</ref>
* Not all AGP cards that fit the slot actually work, see [[UP1500 Compatibility#AGP Video Cards|AGP Video Card Compatibility]].
* The IDE controller does not support 48-bit [[Wikipedia:LBA|LBA]], so hard drive sizes are limited to 128 GiB (137GB)
* IO space needed for PCI counts against the amount of memory usable by the AMD-761<ref>{{cite mailing list
|url=http://lkml.indiana.edu/hypermail/linux/kernel/0209.1/1452.html
|title=[patch 2.5.34] alpha: nautilus update
|date=Sep 13 2002
|mailinglist=linux kernel
|author=Ivan Kokshaysky}}</ref>
* {{:Alpha_AGP_Conflict}}

== Hardware Hacking ==

The northbridge fan on the UP1500 is mostly decoration. Even at an ambient temperature of 30°C and full system load, the board can be run without it. As it is a rather small fan with a high rpm, doing so lowers the noise created by the board considerably. Naturally, if such a "fanectomy" is performed, a keen eye should be kept on the temperatures, specifically of the northbridge.

== External Links ==
* [http://www.alphalinux.org/firmware/api/UP1500/srmupdt.5.6-19.img Latest SRM (5.6-19)]<ref>{{cite mailing list
|url=http://www.redhat.com/archives/axp-list/2008-November/msg00099.html
|title=Re: Latest SRM for UP1500
|date=28 Nov 2008
|mailinglist=axp-list
|author=Maurice Hilarius}}</ref>

== References ==
<references />

[[Category:Hardware]]
[[Category:Motherboard]]

UP1500 - Revision history

Gareth: Imported from http://web.archive.org/web/20100713113631/http://www.alphalinux.org/wiki/index.php?title=UP1500&action=edit