SPONSORED LINKS
In message Fri, 9 Dec 1994 23:57:22 +0100, eronald@cnam.fr (Edmund Ronald) writes: > Re: the big 750/755 is it socketed - is it upgradeable discussion, > I suggest we have a resident engineer who can provide authoritative > answers either by getting docs or calling a friend at IBM- Like I said, I asked someone at TP75x development at IBM Japan (where the TP7xx series was designed) when the 755 first came out. Here's the post I made then. If you guys REALLY want to know whether the 755 is socketed or comes with a daughterboard (I would think the eyewitness account of one of our members saying it's a daughterboard would be enough), I can ask Ken. ------------------------------------------------------------------------- Surprise surprise. Not only can we go up to 36 MB, we can do it without voiding our warranty, and we can do it NOW. :) I haven't been keeping track, but I think the TP755 was just announced (which is why Ken could answer some of our questions on it). I like the hard drive options. :) But I'm sure it'll cost an arm and a leg. :( ------------------------------ From: Ken Inoue <xxxxxxxxxxxxxxxxxxxxx> Wed, 18 May 94 13:59:02 JST To: "John Kim" <jokim> Subject: More questions about the TP750 John: My apologies for the delay in getting back to you. As you mentioned, some of your questions just couldn't be answered until today :) and the week before last was a national holiday week (Golden Week) in Japan. Re harddisk power requirement: I am afraid there is no clear-cut answer to this. It all would depend on what the rest of the system might be doing when the harddisk draws peak power... There are multiple fuses in the power subsystem for safety's sake, some of which apply to individual voltage levels such as 3.3V and 5V. The harddisk uses 5V, whereas the panel is directly driven by battery, so I am afraid it won't matter whether you have a mono or a color. Re the plastic housing: I was told that we don't offer it as a separate option precisely because we can't be responsible for any subsequent damage. Sorry. Re the 540MB and 810MB harddisk option: I understand the 750 line will require a Flash BIOS update to support these sizes properly but yes, they do work with the 750 line. You may want to note however that some disk drivers that directly manipulate hardware (like Microsoft Windows for Workgroups' 32 bit FASTDISK driver) may not run on them or see only the first 528MB. Re motherboard upgrade for the 750 line: I am afraid I am not aware of any announcements regarding upgrade to the 755 line or equivalent. I understand it will cost quite a lot because all the boards will have to be swapped (not to mention mechanical changes like improved heat sink). I sure wish Intel offered a clock-doubled 486SL... Re the 20MB memory 'limit': it's just that at the time the 750 was announced, no manufacturers were making 32MB IC DRAM cards. Actually the 750 is designed to take up to 36MB (32MB card + 4MB planar); right now there is a ThinkPad Proven vendor called Apricorn who offers one that works with the 750. You may want to call IBM Direct for details. I hope this answers your questions... Best regards, Ken Inoue _____________________________________________________________________ |\_____________________________________________________________________\ | | | | | John H. Kim "None of what you are seeing is actually happening." | | | jokim@mit.edu - disclaimer for TV movie 'Without Warning' | | | jokim@uni.uiuc.edu jokim@tuna.mit.edu does not work (yet) | \|_____________________________________________________________________|