Re: Retro Rig Photo Thread
Posted on 2014-05-05, 21:49
I collect old laptops for specific reasons
Re: Story behind your avatar?
Posted on 2014-04-29, 05:56
Re: OK...this is annoying....hmmm
Posted on 2014-04-28, 19:01
http://pdf.datasheetcatalog.com/datasheets2/31/310470_1.pdf 7 chips of 1M x 32bit x 4 bank = 112MB. The addressing will very likely not work like that. The 128-bit width could be needed from 4 chips, or maybe from the 4 banks. If you removed 3 more of the correct chips it would be funny to see that …
Re: Dosbox on a 486
Posted on 2014-04-28, 08:04
Has anybody compared this to an underclocked 486 system running MSDOS natively?
Re: OK...this is annoying....hmmm
Posted on 2014-04-28, 07:17
I'm not up to the task of repairing this :( I wouldn't even know where to buy new ram for this. I'd really like to repair it though as I have already tried and can't find another blue pcb TI4600 anywhere. Let me put it this way, unless this was an important component for an aerospace computer that …
Re: Converting 72pin to 30pin SIMM
Posted on 2014-04-28, 07:04
I'm looking for datasheets of any IC for async dram of 'high density.' I want to become more familiar with the packages like SOJ they use, and determine if there is a common convention for pinouts. Sometimes I am lucky and things on ebay result in entire module datasheets: http://www. …
Re: 2M x 36 SIMM Question 72 PIN
Posted on 2014-04-25, 10:41
Well here's a FP 80ns if that helps at all http://www.ebay.com/itm/LOT-OF-TEN-8MB-FPM-PARITY-80NS-SIMM-72-PIN-5V-2X36-/230649541018?pt=US_Memory_RAM_&hash=item35b3c8b19a Though the photo doesn't show a module with parity... http://www.matrix-bios.nl/calc/waitstates.html According to that calc the …
Re: Converting 72pin to 30pin SIMM
Posted on 2014-04-25, 05:48
I have more reasons than I have shared for the way I am approaching this. I appreciate the link, I'm probably going to also buy a set if I don't see any more at the next fleamarket. The OP doesn't have any of these options and has to hack it. I am already aware of the exact reasons for the memory …
Re: Converting 72pin to 30pin SIMM
Posted on 2014-04-24, 13:37
What are the part numbers for the ICs? I've found some more info, lecture 3 in particular: http://www.ece.umd.edu/class/enee759h.S2003/ It would be great if there were video lectures of these slides.
Re: Converting 72pin to 30pin SIMM
Posted on 2014-04-23, 11:54
Coincidentally this whole project is what I've been studying in my spare time this month. I got a laptop in March which uses a 386SX and SIPPs, so my curiousity has been if I can take any SIMM, find datasheets on its asynchronous DRAM ICs, and then design a PCB to use those harvested ICs. I want a …
Re: Converting 72pin to 30pin SIMM
Posted on 2014-04-20, 04:14
Yes it is possible, but not straightforward. They're all Async DRAM modules but it will take some focus to both adapt the physical difference and match the addressing bits. The ICs cannot just be swapped out in most cases. 30-pin SIMMs are 8-bit wide memory and 72-pin SIMMs are 32-bit. The IC's on …
Re: Should I stock up on CRT's...
Posted on 2014-04-19, 09:19
If I had a warehouse or huge house at my disposal I wouldn't get rid of any electronics. What's storage worth to you? I have to get rid of things time to time...
Re: Post pics of your CRT monitors
Posted on 2014-04-19, 08:42
http://i.imgur.com/tPpaMUK.jpg Heroes of Might and Magic boxes :blush: . I like Heroes 2 for the pixel art nostalgia, and Heroes 3 since it has the most features and HD mods today. To make this post relevant, I took a lazy & unstaged photo of my CRTS: 21" Sun GDM-5510 and two 19" Sony 420GS. I'm …
Re: List of Black CRT's
Posted on 2014-04-18, 07:08
sgi GDM-5411, it used a Sony Trinitron tube. Samsung 990DFs all had geometry issues on the left side and were awful. There are black TV sets that support XGA and have DB-15 inputs http://www.telestarcorporation.com/monitors.html I think gateway made some 37" models too. Painting with vinyl dye is …
Re: what is with these newer cases
Posted on 2014-04-18, 04:04
Lian Li models I own: PC-A71B PC-8B PC-C32B PC-V700B PC-Q05B (2x) PC-9F Someone just try to tell me that any one of these looks like a shitty gimmick.
Re: Ancient DOS Games Webshow
Posted on 2014-04-14, 16:13
I remember playing Apple II Oregon Trail in school. I first watched the show's Wacky Wheels review and really enjoyed it! These seem really well recorded produced for what it is and are very informative. The graphics mode icons are a nice touch; I noticed the CGA-composite icon for Space Quest. I …
Re: Are there any open-source game engines for msdos?
Posted on 2014-04-09, 06:03
.flac support would be anachronistic, since the audio files would be disproportionately larger than the game's core. Wouldn't .wav be an ok substitute? It wouldn't be. Have you ever had a pre-1997 mixed-mode game CD where there was a <10mb game and the rest are used for huge uncompressed audio …
Re: Are there any open-source game engines for msdos?
Posted on 2014-04-08, 09:11
I somewhat resent the OP's track record of asking obscure/inane questions and then leaving the discussion with no follow up. But to get back to the point... Wikipedia actually has a list for older game engines: http://en.wikipedia.org/wiki/Game_Creation_System which are not necessarily open source, …
Re: 775 and ISA
Posted on 2014-04-08, 08:01
There's some really weird stuff out there... http://www.costronic.com.tw/EindexPI.htm Yes, if a company spent $200k developing a specialized control card for ISA, they'd rather spend $1k to just rebuild the computer each time it fails. Working around that card design would be easier than to re- …
Re: what is with these newer cases
Posted on 2014-04-08, 07:37
Lian Li is the only case brand I use: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&Manufactory=1375&N=50001375&IsNodeId=1&SpeTabStoreType=0 They tend to cycle through designs every 18 months, so there's usually no typical go-to model. All-aluminum is very nice looking and light weight. …
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