Thread View: eunet.micro.acorn
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Started by Graham Toal
Sat, 09 Mar 1991 09:45
Re: upgrading the RAM
Author: Graham Toal
Date: Sat, 09 Mar 1991 09:45
Date: Sat, 09 Mar 1991 09:45
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>An electrical engineering student suggested this to me some time >back. Should I trust him? I have a 310 with no warranty. Are there >drawbacks? like not being able to buy an ARM3 when I win the pools. or >it being terribly slow? > >I really want 4meg but I *can't* afford the ridiculous price people >are asking for it. Well, if you're not an EE student yourself, see if you can get your friend to do it for you; the upgrade needs an experienced solderer, and a calm temperament :) ... Les suggests taking a weekend over it, with several breaks. I bought the ram mail-order from Germany (where *everything* seems cheaper - check out Chip magazine if you can get it) but I think you can find almost as good prices in britain. The catch is the work is really tedious; and the main part is unsoldering all your current ram chips and inserting sockets instead. G PS Les's home-made arm3 upgrade is compatible with his ram upgrade :) -- (* Posted from tharr.uucp - Public Access Unix - +44 (234) 720202 *)
Re: home-made arm3 upgrade
Author: Graham Toal
Date: Sun, 10 Mar 1991 12:08
Date: Sun, 10 Mar 1991 12:08
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In article <1991Mar9.175417.1435@urz.unibas.ch> gaspar@urz.unibas.ch writes: >In article <1924@tharr.UUCP>, gtoal@tharr.UUCP (Graham Toal) writes: >> PS Les's home-made arm3 upgrade is compatible with his ram upgrade :) >> -- >> (* Posted from tharr.uucp - Public Access Unix - +44 (234) 720202 *) > >Could you tell me who Les is? Or if you know more about this home made ARM3 >upgrade: How much does it cost and how difficult is it to make? Sorry - cross purposes there! - Home-made, as in Les's home, not yours :-) Les Currell is a physicist I think who works for the Max Planck institute in Germany. He's a very experienced electronics hacker, and has done all sorts of arm-related projects. The Ram upgrade is the easiest one as it doesn't involve any PCBs. The Arm3 is a proper PCB with surface-mounted chips -- he makes them himself and sells them at a very low price (can't remember how much offhand). He hasn't advertised yet at all because he's had *terrible* problems getting his hands on Arm3s. I think he finally got around 10 this month and the first 10 boards have already been sold. I don't have his email address to hand; I'll post it later. Unfortunately living in germany he has appaling net access, and his mail connection goes down a lot; and he can't read usenet. Graham PS I've a feeling he knocked up a VIDC upgrade too, but don't hold me to that... -- (* Posted from tharr.uucp - Public Access Unix - +44 (234) 720202 *)
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