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Re: Rivendell curiosity
To: CRTech <crtech@crtech.org>, Willie Barnett <wbradiolists@gmail.com>
Subject: Re: Rivendell curiosity
From: Lamar Owen <lowen@pari.edu>
Date: Wed, 11 Oct 2017 17:48:08 -0400
Content-language: en-US
In-reply-to: <CAOkhgWorYabwH6OnEP-zgVQMT2BbzjEc1thwyX_CDd0rGpEGKw@mail.gmail.com>
References: <CAOkhgWozDHU6V-hTiWiV-CCoSG66JewVVvyxLXQtURAFn_vLmg@mail.gmail.com> <E077351015F74F4EAAFFC02321F37A42A186242F@EMP-MB-01.emp.ark.nwc.edu> <E077351015F74F4EAAFFC02321F37A42A1862471@EMP-MB-01.emp.ark.nwc.edu> <CAOkhgWrNpFWiovRGj8r1Anwp32RgGZqnAMNLZsv2yb-PATqSpg@mail.gmail.com> <005301d34119$645d2490$2d176db0$@voiceofchristmedia.org> <CAOkhgWqAMRhentrDvdyzPV_RqwT-KiJB+bTFbT+ZuVPuWtYwyg@mail.gmail.com> <006401d34123$54364560$fca2d020$@voiceofchristmedia.org> <CAOkhgWorYabwH6OnEP-zgVQMT2BbzjEc1thwyX_CDd0rGpEGKw@mail.gmail.com>
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On 10/09/2017 01:43 PM, Willie Barnett wrote:
These machines are from about 2005ish. P4 1500MHz processors, all in excellent condition. Definitely NOT cutting edge, but still capable and useful.
Some Prescott-core P4s and even Celeron Ds support EM64T.  Are these machines Socket 478 or LGA775?  Some of these machines can handle Pentium-D chips in LGA775, and many of those support EM64T (and being dual-core makes a much bigger difference than you might otherwise think).  You might be able to grab a few-dollar chip plus a beefier heatsink off of eBay and do 64-bit. (Pentium 4 511 in Socket 478 has EM64T, and I think some Celeron D  chips in 478 did EM64T as well).  You would just have to check the chipset on your motherboard to see if those are supported.

EM64T was announced by Intel early in 2004, and was in consumer silicon by the end of 2005. (in contrast, AMD announced AMD64 in 1999 and had it in consumer silicon in 2003, although some may take exception of my classifying an Opteron as 'consumer silicon').

We're running several Dell Optiplex G620's here at work with Pentium-D chips, and they run Windows 7 64-bit acceptably.  I haven't booted CentOS 7 on one, but I think it should work ok (CentOS 7 will boot fine on fairly old Opteron ok, and I don't think C7 requires the NX bit, but I reserve the right to be wrong).

--
Lamar Owen
Chief Technology Officer
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC  28772
828-862-5554
www.pari.edu

Follow-Ups: Re: Rivendell curiosity
(Sherrod Munday <smunday@ieee.org>, 11 Oct 2017 21:57:37 -0000)
References: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 15:11:07 -0000)
RE: Rivendell curiosity
("Gullikson, Brian F" <bfgullikson@unwsp.edu>, 9 Oct 2017 15:16:08 -0000)
RE: Rivendell curiosity
("Gullikson, Brian F" <bfgullikson@unwsp.edu>, 9 Oct 2017 15:18:00 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 15:33:59 -0000)
RE: Rivendell curiosity
(<tech@voiceofchristmedia.org>, 9 Oct 2017 16:12:29 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 16:27:05 -0000)
RE: Rivendell curiosity
(<tech@voiceofchristmedia.org>, 9 Oct 2017 17:23:39 -0000)
Re: Rivendell curiosity
(Willie Barnett <wbradiolists@gmail.com>, 9 Oct 2017 17:43:26 -0000)
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