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- Path: sparky!uunet!stanford.edu!agate!usenet.ins.cwru.edu!po.CWRU.Edu!jxj24
- From: jxj24@po.CWRU.Edu (Jonathan Jacobs)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: Accelerating an SE by upgrading the 68000 to 16mhz?
- Date: 27 Jan 1993 16:05:54 GMT
- Organization: Case Western Reserve University, Cleveland, OH (USA)
- Lines: 42
- Message-ID: <1k6bt2INN7sk@usenet.INS.CWRU.Edu>
- References: <1k3pmsINNmq9@moe.ksu.ksu.edu>
- Reply-To: jxj24@po.CWRU.Edu (Jonathan Jacobs)
- NNTP-Posting-Host: slc12.ins.cwru.edu
-
-
- In a previous article, chan@matt.ksu.ksu.edu (Chandima Cumaranatunge) says:
-
- >In a response to a query on accelerating an SE last August, one reader
- >wrote:
- >
- >"you could just accellerate the 68000 chip in your SE from 8mhz to 16mhz
- >That would make it as fast as the SE/30 in the lab. This would cost
- >approximately 150 dollars US, but it is alot cheaper than adding a 68020
- >or 68030!"
- >
- >I need to speed up an SE which is being used as a file server (using
- >System 7 file sharing) on a small AppleTalk network.
- >
- >Several questions on this:
- >-------------------------
- >Has anyone tried this?
- >Are there any architectural limitations on the motherboard to doing this?
- >Can the local Mac agent install the new processor?
- >Is it really as cheap as this?
- >
- No it wouldn't be as fast as an SE/30.
-
- The 68000 at 16MHz wouldn't be as fast as a 16MHz 68030, but about half the
- speed for most practical use. The 68030 has instruction caches on board
- that hpld recently executed code according to the liklihood that the
- computer will want to use them again real soon, therefore saving time that
- would be spent fecthing them.
-
- You want a faster SE? Buy an accelerator. Consider what it would take to
- replace the 68000 on the logic board. No way is this a cheap proposition.
- Desoldering it is a nightmare, and using a killy clip to piggyback a
- new processor is not necessarily a lot of fun either. (Actually it is
- usually reliable, except it is a royal pain when it fails.)
-
- Brainstorm (I think) may now make a clip on for the SE. It's about $200
- if my memory hasn't failed me. Maybe $250. Whatever.
-
- Jon Jacobs
- Dept. of Biomedical Engineering
- Case Western Reserve University
- Wow
-