Re: Facing the "retro build scare" - a nightmare before Xmas

Posted on 2020-12-10, 23:53

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

for windows XP, just use antiwpa and don't worry about actual activation (since it is near on impossible to get official activation for XP working anymore). Select phone activation and generate the code with GoInteract Self Service for Mobile website (you can use another pc for that). https:// …

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Re: Asus P2B-DS Rev 1.06 FSB Modification

Posted on 2020-12-08, 20:23

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Paadam wrote on 2020-12-08, 20:17: MSI 6905 ones can also be used with small modifications, ver 2.3. Do you know what kind of modifications are needed?

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Re: Minimalist Builds Switching Between a Single PSU For Multiple Computers

Posted on 2020-12-08, 19:58

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for noticing that old thread :) here is a more up-to-date version of that "nano-tower" case: https://www.vogons.org/viewtopic.php?t=49928 I also recently made a simple acrylic open test bench for full ATX mainboard + SFX power supply and uploaded the template: https://www.vogons.org/viewtopic …

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Re: Ti4400 - Graphical Issues - Fix?

Posted on 2020-12-08, 19:36

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by adalbert

in Marvin \ Video

in Marvin \ Video

I was able to successfully replace BGA ram chips. It's much easier to do with old hardware, which is soldered with leaded solder, because leaded solder is easier to melt than unleaded one. You would need these things: - hot air station (858D is the cheapest one, it's not good at all for modern lead- …

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Re: 8Bit ISA WIFI Card - Project - Brainstorm / WIFI Stick for RS232

Posted on 2020-12-08, 16:53

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I was thinking about a different approach, embedding a small WiFi router, which connects to wireless network and converts it to a normal wired ethernet connection. Then that ethernet connection would be internally connected to a regular Ethernet ISA card or PCMCIA card. There are cheap OpenWRT …

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Re: GDDR SDRAM vs DDR SGRAM Radeon 9000 BGA memory replacement

Posted on 2020-12-05, 19:53

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by adalbert

in Marvin \ Video

in Marvin \ Video

Different pinout, physical package I compared datasheets and amount of balls and spacing is the same, pinouts also seem to match (except Hynix which has MCL pin unconnected). compare-ddr.png Don't know how important are the timings, Hynix and Samsung seem to be rated for better speeds. This is a …

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GDDR SDRAM vs DDR SGRAM mobile Radeon 9000 BGA memory replacement; Inspiron 8100 (edit: seems to be interchangeable)

Posted on 2020-12-05, 18:19

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by adalbert

in Marvin \ Video

in Marvin \ Video

I want to replace faulty BGA RAM in mobile Radeon 9000 video card. It originally uses Infineon HYB25D128323C-3.6 128 Mbit DDR SGRAM. Is GDDR SDRAM the same thing? It seems to be easier to obtain and it seems to be also used with other Radeon 9000 cards. Original part: Infineon HYB25D128323C-3.6 128 …

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Re: Toshiba T5200 mods and upgrades

Posted on 2020-12-05, 16:06

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

However, I am having a problem with the not working on the My T3200sx. If someone knows how to fix it, please give me some advice. I have T3200SXC and I found out that not every mouse works with it. What is the model you are trying to use? 3-button Logitech Mouse Man worked out of the box, but I …

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Re: What retro activity did you get up to today?

Posted on 2020-12-04, 23:02

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just made a test bench for my Dual Tualatin-to be system (unfortunately i have problems with second slotket, so I installed Katmais now). I pushed heatset M3 threaded inserts into laser-cut 5mm thick acrylic base and installed standoffs. I wanted this setup to be as compact as possible, so I used …

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Re: Bought these (retro) hardware today

Posted on 2020-12-02, 23:33

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

More difficult to reverse engineer? (/edit/ these holes would probably also block x-rays)

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Re: Building a 486, Any tips & recommendations for a newcomer?

Posted on 2020-12-02, 23:27

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I would mainly want to know is, Is there anything in particular I should watch out for? Good or bad? Specific motherboards known to have weird compatibility for example. Check if your motherboard accepts EDO or FPM memory. FPM should work in all motherboards. EDO can be a bit faster, but it …

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Re: PCI/ISA cards not fully fitting in slot?

Posted on 2020-12-01, 23:31

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Standoffs in that case may be a little bit too short, but that doesn't look like a serious problem anyway. AGP slot could be more sensitive, as it has two rows of connectors, but I don't see one here.

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Re: The quest for the perfect retro laptop: a saga

Posted on 2020-12-01, 21:09

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Many have almost no parts availability, documentation, or available community knowledge. I had positive experience with Dell Inspiron 8100, although it's almost a "modern" laptop, but still compatible with Win 98 and DOS to some extent. Most of the parts are interchangable with i8000, i8100, …

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Re: PicoATX power supply for retro build

Posted on 2020-12-01, 15:54

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's the reason for installing LM2662, it is a charge pump which converts positive +5V into -5V :) you solder +5V to +VIN on the module, and -VOUT goes to the -5V mainboard connector. -12V remains untouched in this scenario. LM2662 should provide up to 200mA, maybe less in real world conditions, …

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Re: PicoATX power supply for retro build

Posted on 2020-12-01, 15:22

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I posted that design in this topic: https://www.vogons.org/viewtopic.php?f=46&t=75959 here is a prototype for T3200SXC https://www.vogons.org/viewtopic.php?f=46&t=75471 unfortunately I didn't go beyond a prototype and I think this design should be modernised, for example throw out the relay and …

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Re: Bought these (retro) hardware today

Posted on 2020-12-01, 11:22

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does your Presario originally have 8MB of VRAM and you solder in an extra 8 to yield 16 in total, or are you on 24MB of VRAM now? The extra RAM actually increased your total VRAM bandwidth so it'll show a performance bump-up... It originally had 8MB only on-chip and two empty solder pads. I …

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Re: Bought these (retro) hardware today

Posted on 2020-11-30, 21:59

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The ESS Maestro/Allegro on the machine (also found on the Inspiron 4000) is a bit of a hit-and-miss though. It's not hardware ESFM so some of the FM synthesis sounds a bit off (kinda like an Ensoniq S2000). Yeah, for that I have Presario 1800 with ESS Solo-1, which is nice for late 90's games (P3 …

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Re: Bought these (retro) hardware today

Posted on 2020-11-30, 21:20

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So what's the plan with the Inspiron 8100 motherboard? I have broken Inspiron 8200 with good case and IPS 1600x1200 screen so i will transplant that motherboard there, I will also install Radeon 9000 card from another Inspiron after i fix it and that will be a really nice late Win 98/early WXP …

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Re: What retro activity did you get up to today?

Posted on 2020-11-30, 20:18

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by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All right, I wasn't in mood to replace these 144 balls without stencil using tweezers (I actually did that once), so I just went the "oh-no" way and did a reflow by preheating entire board, injecting flux under that memory chip and heating it up with hot air. Then I removed remaining flux with …

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Re: What retro activity did you get up to today?

Posted on 2020-11-30, 16:44

by

by adalbert

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Designed and printed a couple of these... Really nice design :) In a moment I will be reballing one of the memory chips of mobile Radeon 9000 card. I bought a spare one for one of my Dell Inspiron laptops (8100 or 8200). It was described as defective, because it generates artifacts, but that didn't …

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