Re: Su 25 : Soviet Attack Fighter steering

Posted on 2022-06-15, 00:22

by

by froller

in DOS

in DOS

carlostex wrote on 2022-05-27, 17:28: You've flown a real Frogfoot? Nope. Just couple of piston experimental ones. But the principles are the same. As you stall the fighter jet (that is designed to withstand much harder manoeuvring than light sport aircraft) then you certainly make one of the …

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Re: Su 25 : Soviet Attack Fighter steering

Posted on 2022-05-27, 12:07

by

by froller

in DOS

in DOS

has somebody any good advice for the best way to steer the plane? According to my experience (36 hours) of flying real airplane: 1. Keep an eye on airspeed. Don't let airspeed drop below stall speed +10 kts. 2. Too much bank. Try turning with not more than ±15° of bank. 3. Don't pull so hard on a …

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2022-04-19, 15:16

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Latest revision is 5. I've fixed mistake in BOM and also added links to Mouser to help getting proper parts or finding analogs.

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Re: E-Wave : an ESS based waveblaster card

Posted on 2022-04-19, 14:57

by

by froller

in Marvin \ Sound

in Marvin \ Sound

I've spent some time trying to figure out why it was silent. But finally I noticed it uses AUX1 channel on my ESS8139 and I managed to make it play. It sounds awesome! Thanks for the great product!

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Re: Do 40 Pin Compact Flash to IDE Adapters need power?

Posted on 2022-01-25, 18:12

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Disabling the swap file is one way to avoid that. Another way is to add this entry to your system.ini file under [386enh] : ConservativeSwapfileUsage=1 ConservativeSwapfileUsage = 1 tells Win98se to only write pages to the swap file when they need to be swapped out. Oh jeez! Where were you in the …

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2022-01-21, 11:56

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's better to install a 40-pin socket instead of soldering a 80C42 compatible controller directly to the board. It isn't 'cause chip in socket is too high and prevents some ISA cards from being fully inserted in slots 1 and 2. Anyway there's no way back to VT83C41 that doesn't require soldering …

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2022-01-21, 11:55

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

both 2.2 uH or 470 uH inductors are functional for PS/2 mice on this board. The problem I had was with AMIKEY-2 - PS/2 mouse wouldn't function with it, but Holtek HT6542B and VIA VT82C42N both worked fine. Initially I tested all these mods with AMIKEY-2 salvaged from Zida Tomato 4DPS which is …

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

Posted on 2021-04-23, 11:17

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've just finished soldering extra chips to my spare SIMMs and now I have 2 8Mb 72-pin FPM ones. So I'm gonna install Windows '95 on my 66MHz 486 VLB rig.

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-04-23, 08:29

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Document revision 4 is out. Changes: jumper wire tying pin 26 of Holtek HT6542B to +5V. W/o jumper wire it worked fine with AMIKEY-2 but failed to initialize keyboard controller with POST code 0x05 with HT6542B.

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-04-18, 08:36

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Document revision 3 is out. Changes: R51 value changed from 10k to 4.7k to avoid mouse glitches.

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Re: USB Floppy

Posted on 2021-03-30, 12:42

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I use this one and it does its job well Filename IMG_20210330_153406.jpg File size 370.77 KiB Views 686 views Filename IMG_20210330_153423.jpg File size 351.29 KiB Views 686 views

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Re: Compaq deskpro PSU go boom.

Posted on 2021-03-22, 17:34

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hopefully it was something in the PSU that cause the pop and the new one doesnt just pop as well. Looks like high voltage diodes decided to do some fireworks. Remove remains, check for short circuit behind them, solder in new ones. Looks pretty simple. ...and clear all that dusty crap out. This is …

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Re: LuckyStar LS486E problem with PCI IDE

Posted on 2021-03-22, 17:28

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2021-03-22, 13:29: Yep. The issue doesn't seem to be related to option ROMs, the board just doesn't play nice with add-on disk controllers. Will check as soon as I find my SiI3112 PCI sATA controller. It worked on Zida 4DPS.

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Re: LuckyStar LS486E problem with PCI IDE

Posted on 2021-03-21, 10:47

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Roman555 wrote on 2021-03-21, 07:42: And I forgot to mention that more often LS-486E works only with FPM RAM. EDO RAM is rarely compatible with this board because it depends on chipset revision. Usually EDO causes errors during the start. The only revision proven to work with EDO is Rev:D.

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Re: LuckyStar LS486E problem with PCI IDE

Posted on 2021-03-20, 23:22

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

then it goes back to normal, but only until I load EMM386 or JEMMEX and try to load drivers into UMB, then the gibberish comes back Have similar memory corruption on my Rev:D. Looks like you allows DOS to write to the regions occupied by ROM. Try UMBINFO (it has German interface but still usable) …

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-03-19, 14:34

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh, my bad. CN1 is DIN-5 keyboard connector. BTW, check this out The AT-PS/2 Keyboard Interface by Adam Chapweske.

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-03-19, 08:38

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2021-03-19, 00:47: this is my board - no obvious revision markings I can see Looks pretty much like C2. Have you tried to trace back CN1 and CN5 and resistor packs RN4, RN5 and RP9?

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-03-18, 20:55

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'll have to look at the board again to get you the exact revision. It's the one where the DIP24 KBC is tucked in between the ISA slots. Now I'm tracking about the BIOS, guess I'll stick with what I have since my board used the Winbond super IO Your BIOS string should be like "486E 96/10/24 WB3787 …

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Re: LuckyStar LS-486e Rev:D Hardware Upgrade Guide

Posted on 2021-03-18, 18:17

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'll be releasing a PS/2 add-on board for rev C shortly. Will post here when it's fully tested. It will require desoldering the 24-pin KBC from the motherboard same as rev D, but will then connect the add-on board to that footprint using a 24pin ribbon cable. What is your mobo exact revision? I saw …

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Re: Owners of the Lucky Star LS-486E Revision D - PS/2 Mouse / Please help

Posted on 2021-03-18, 13:24

by

by froller

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looks like this topic is done. Summarized info is here

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