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Updated the Pentium chipset descriptions as suggested by Rodney Grimes.

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Submitted by:	Rodney Grimes
This commit is contained in:
David E. O'Brien 1997-01-12 09:36:52 +00:00
parent 5307735f35
commit 8f3a29750e
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=994
1 changed files with 18 additions and 16 deletions
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34
handbook/hw.sgml
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@ -1,4 +1,4 @@
<!-- $Id: hw.sgml,v 1.58 1996-12-31 21:54:13 mpp Exp $ -->
<!-- $Id: hw.sgml,v 1.59 1997-01-12 09:36:52 obrien Exp $ -->
<!-- The FreeBSD Documentation Project -->
<!--
@ -65,8 +65,8 @@ Slippery when wet. Beware of dog.
<htmlurl url="http://asustek.asus.com.tw/FTP/ASUS/Info/Spec/pi-p55tp4xe.txt"
name="P55TP4XE">
motherboard appears to be a good choice for mid-to-high range Pentium
server and workstation systems, though the newer Triton-II boards (see
below) have largely supplanted them. If you buy one of these boards,
server and workstation systems, though the newer 430HX (Triton-II) boards
(see below) have largely supplanted them. If you buy one of these boards,
be also sure to get it with the
<htmlurl url="http://asustek.asus.com.tw/Products/TB/mem-0002.html"
name="pipelined burst cache module">. If you are looking for a 486 class
@ -77,10 +77,11 @@ Slippery when wet. Beware of dog.
NOTE: The Intel <htmlurl
url="http://asustek.asus.com.tw/Products/TB/triton-intro.html"
name="Triton"> chip-set based motherboards do not offer memory
name="430FX (Triton)"> chip-set based motherboards do not offer memory
parity logic, making it almost impossible to detect when a memory error
has occurred. Those wishing to build more fault-tolerant systems should
therefore buy one of the newer Triton II based motherboards, which offer
therefore buy one of the newer 430HX (ie. Triton II) based motherboards,
which offer
both better performance, parity checking and ECC. I am also told that
if you are using ECC memory, be sure to get a motherboard with uses the
A2 or later steppings of the 82439HX Triton-II chipset. Do not get this
@ -288,20 +289,20 @@ Slippery when wet. Beware of dog.
PCI bus arbiter (appears on Intel Altair board
and several other Intel server group MB's). And
of course Intel's official answer, move to the
Triton chip set, we ``fixed it there''.
430FX chip set, we ``fixed it there''.
<tag>Triton <em>(ie, 430FX)</em>:</tag>
No known cache coherency or bus
master problems, chip set does not implement
parity checking. Workaround for parity issue.
Use Triton-II based motherboards if you have the choice.
<tag>430FX <em>(ie, Triton I)</em>:</tag>
No known cache coherency or bus master problems, chip set
does not implement parity checking. A workaround for the
parity issue is to use a 430HX (Triton-II) based motherboard
if you have the choice.
<tag>Triton-II <em>(ie, 430HX)</em>:</tag>
<tag>430HX <em>(ie, Triton II)</em>:</tag>
All reports on motherboards using
this chipset have been favorable so far. Although, some
have said that if you are using ECC memory, be sure to get a
motherboard with the A2 or later steppings of the 82439HX
Triton-II chipset. Do not get this confused with the 82371SB
chip. Do not get this confused with the 82371SB
stepping - you have an A2 stepping if the 82439HX chip has a
marking of "SU102". You have an A1 stepping if it is not
marked with an S-number or if the number is "SU087".
@ -313,16 +314,17 @@ Slippery when wet. Beware of dog.
space restriction of 128MB, though it does add support for
SDRAM. However, it will not cache memory above 64MB.
<tag>Orion <em>(ie, 450KX)</em>:</tag> Early versions of this
<tag>450KX <em>(ie, Orion)</em>:</tag> Early versions of this
chipset suffered from
a PCI write-posting bug which can cause noticeable performance
degradation in applications where large amounts of PCI bus
traffic is involved. B0 stepping or later revisions of the
chipset fixed this problem.
chipset somewhat fixed this problem. The problem should be
fully fixed in the C0 or later stepping.
<tag><htmlurl
url="http://www.intel.com/design/motherbd/vs/index.htm"
name="VS440FX"><em>(ie, Natoma)</em>:</tag>This <htmlurl
name="440FX"> <em>(ie, Natoma)</em>:</tag>This <htmlurl
url="http://www.intel.com/procs/ppro/intro/index.htm"
name="Pentium Pro"> support chipset seems to work well,
and does not suffer from any of the early Orion chipset