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Article #2974Re: SS-LX to SS-20 upgrade - how to modify devices, etc. + Q on CPU's
From: jason andrade
Date: Tue, 03 Nov 1998 00:00
Date: Tue, 03 Nov 1998 00:00
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2552 bytes
cdewick@lios.apana.org.au (Craig Dewick) writes: >According to the FEH, the SM-81's do not work in SS-20's. I'm trying to >figure out the line of progression for CPU modules which are supported in >the SS-20 (and the SS-10 for that matter). I know that it goes like this: > SM-51 (50 MHz), SM-61 (60 MHz), SM-71 (75 MHz), ???, ??? >What comes after the SM-71 in terms of speed, processing ability, etc.? Are >the HS11 (100 Mhz), HS21 (125 MHz) and the SM-151 (150 MHz) next along the >increasing speed/performance curve of SS-10 and SS-20 compatibility? Are >there any CPU modules which are faster than the 150 MHz SM-151's that will >work in SS-20's? >Also, what are the differences between the SuperSparc and HyperSparc >processors apart from higher raw clock speeds? the SM81 will work, but its unsupported due to the heat output i believe. 2 in one machine would definitely not be good, unless you have some way of doing better cooling inside the machine. i am still debating whether to go for an SS20/712 or play it safe and stick with it being an SS20/612. the hypersparc has less cache than the supersparc cpus (256K ? and then upto 512K for the 125/150Mhz hypersparcs?). observations i have seen is that a 150Mhz * 2 Hypersparc is comparable to a 170Mhz Ultrasparc, but that at high loads and/or where cache is important even the supersparc shows better performance than hypersparc (e.g 2 * SM61 beating 4 * HS11) -jason -- jason andrade dstc pty ltd jason@dstc.edu.au senior sysadmin level 7, GPS Building 78 i just wanna be phn +61-7-33654307 university of queensland bluemisty fax +61-7-33654311 queensland 4072 australia and barefooted
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f4671,25c3c469a90bb9 X-Google-Attributes: gidf4671,public X-Google-Thread: f88e1,25c3c469a90bb9 X-Google-Attributes: gidf88e1,public X-Google-Thread: 10d053,25c3c469a90bb9 X-Google-Attributes: gid10d053,public From: jason@dstc.edu.au (jason andrade) Subject: Re: SS-LX to SS-20 upgrade - how to modify devices, etc. + Q on CPU's Date: 1998/11/03 Message-ID: <71lmco$v0q$1@piglet.dstc.edu.au> X-Deja-AN: 407766166 References: <71fb79$mgk$1@lios.apana.org.au> X-Complaints-To: usenet@dstc.edu.au X-Trace: piglet.dstc.edu.au 910056664 31770 130.102.176.27 (3 Nov 1998 01:31:04 GMT) Organization: Distributed Systems Technology CRC NNTP-Posting-Date: 3 Nov 1998 01:31:04 GMT Newsgroups: comp.sys.sun.hardware,aus.computers.sun,alt.sys.sun