Re: IDE to Compact Flash adaptor LED support

Posted on 2023-12-12, 03:23

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some have LED on board like this one but generally speaking these adapters also work with the normal motherboard function. Like you don't usually connect the front panels LED to the HDD itself but to the motherboard

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Re: Network Card Boot Rom - Which EPROM to use?

Posted on 2023-12-11, 12:23

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

zuldan wrote on 2023-12-11, 12:14: How about this one? https://au.element14.com/microchip/at28c64b-1 … -x-8/dp/1095784 Yep that works

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Re: Network Card Boot Rom - Which EPROM to use?

Posted on 2023-12-11, 12:03

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you think this one would be ok? https://www.ebay.com.au/itm/196105569736 No that's OTP or One Time Programmable so you'd have a single shot and if you mess something you'd have to throw it away (it's essentially a UV EPROM in a plastic package and without a window it's not erasable). You need …

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Re: Network Card Boot Rom - Which EPROM to use?

Posted on 2023-12-11, 11:43

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Since you need to buy something buy an EEPROM instead, like a AT28C64B, so you won't have to worry about erasing it with UV in case you need to change something. Remember you need to run the XT-IDE configuration first on the machine and save the binary and flash that one not what you download which …

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Re: Replacing old broken IDE hdd with more modern SATA hdd using ide-sata adapter

Posted on 2023-12-07, 22:39

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Excuse my ignorance but if I plugged in a 120GB SSD via a USB adapter to my Win10 PC, ran rufus and did the above (directed to the connected USB SSD), it would partition and format the disk and copy MS-DOS to it (what version and what fat16/32). Is that correct? Yes, what Rufus does is essentially …

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Re: Better understanding barrel battery charging circuit

Posted on 2023-12-06, 12:03

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Note that the schematic shows you can easily replace the NiCd battery with a CR2032 battery holder directly (no need for a pcb module with holder + diode or anything like that) and lift the leg of D1 (I prefer the side closer to 5V) to disable the charging circuit (diode and resistor can be swapped …

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Re: Replacement for a non standard PSU

Posted on 2023-12-03, 15:48

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This one, PT-45B, also from Mean Well should fit in the original enclosure being listed as 127 x 76 x 28 mm (L*W*H) or 12.7 x 7.6 x 2.8cm (L*W*H) and also matches the specs exactly

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Re: Will the Book 8088 be a future classic?

Posted on 2023-11-27, 08:44

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

darry wrote on 2023-11-27, 02:27: Just a thought, would that work on an ARM architecture based Mac ? Yes, that's what I'm using actually. And just out of curiosity I compared the binary I built with the one provided inside binaries and they match 100%

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Re: Will the Book 8088 be a future classic?

Posted on 2023-11-27, 00:06

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Unfortunately I'm unable to make the binary out of your sources (I have an invalid 80k rom file) using the standard Windows building instructions. Thanks in advance! I read that you have a Mac and trying to build this using Windows on a virtual machine. No need to use Windows, the project can be …

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Re: Will the Book 8088 be a future classic?

Posted on 2023-11-25, 12:42

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

NOT AFFILIATED If anyone is on the fence about buying one I think this would be a good time to pull the trigger, between Aliexpress Black Friday promo, store discount and coupon plus an additional Black Friday code (BF20) I was able to save about 70€. In other words I got the all kitted out V2 from …

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Re: Boot screen spelling mistake, cannot unsee!!

Posted on 2023-11-23, 13:16

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

IIRC the original awdbedit was corrupting only the 6.00PG BIOSes, with the 4.51 being fine. Not sure as I haven't used it in nearly a decade (last time I used it was in 2012, on some SiS based MSI Socket 7 mobo w/4.51PG IIRC) but I remember the disclaimer on BIOS-mods being that the 6.00PG BIOSes …

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Re: Boot screen spelling mistake, cannot unsee!!

Posted on 2023-11-23, 10:58

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I redid the mod using modbin (I had forgot about it) and replaced the attached zip in my previous post. I would trust the new binary more than the previous one but same warning applies

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Re: Boot screen spelling mistake, cannot unsee!!

Posted on 2023-11-22, 23:57

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This piqued my curiosity so I poked at the files from The Retro Web , the QN version doesn't have the spelling mistake while both SS versions do (I didn't check the QN beta version). According to the changelog in this page the SS version seem to just add support for a few more CPUs (Celeron 633(66), …

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Re: Gotek Floppy Emulator with FlashFloppy

Posted on 2023-11-22, 12:16

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't know if the "OLED mod" mentioned earlier is what I'm about to describe but if it isn't here you go: It's possible to install a 0,96" OLED (easily found from the usual outlets) in a Gotek without any case alterations, however it's necessary to separate the OLED proper from the PCB so the …

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Re: Replacing old broken IDE hdd with more modern SATA hdd using ide-sata adapter

Posted on 2023-11-11, 20:40

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The quickest way to prepare an hard disk to make it bootable to then install Windows 9x is to use Rufus 4.x on a modern machine, chose Boot selection -> MS-DOS and DOWNLOAD next to it and then make a folder called for example W98SETUP and copy the content of the iso into it. This will make the drive …

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Re: Olivetti M290-20 looking for the list of supported HDDs

Posted on 2023-11-06, 15:01

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I looked at the BIOS dump for the Olivetti and the HDD table starts at 0x1E401: Type1: C803 05 000000000000000000 C803 11 00 Type 2: D103 0A 000000000000000000 D103 11 00 Type 3: FA02 08 000000000000000000 FA02 27 00 Type 4: EE02 08 000000000000000000 EE02 11 00 Using Type 1 as example: 968 …

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Toshiba T5100 Compact Flash Hard Disk replacement and BIOS mod procedure

Posted on 2023-11-05, 16:12

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The T5100 as other similar IDE Toshiba laptops has a handful of hardcoded supported hard disks, in this case a set of four hard coded types and corresponding set of Cylinders, Heads, Sectors parameters the latter of which start at offset 0xE451 (while the strings to show the capacity start at 0x4555 …

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Re: Old Toshiba notebook - limited HDD replacement options?

Posted on 2023-11-04, 10:40

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had modified the BIOS of my T3100SX to replace the parameters of an hardcoded HDD with the ones from a CF card, here's the post I had made https://www.vogons.org/viewtopic.php?t=48487 In that T1850 binary the HDD parameters start at offset 0x84E8 and it seems to be only one set (so no "alternate" …

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Re: How about a MR-BIOS ROM file repository?

Posted on 2023-09-07, 11:53

by

by Yrouel

in Marvin \ Software

in Marvin \ Software

I can report that the Zida 5DHX rev 1.2 works with V098B5WK meant for Jetway J-656HXA (aka AZZA PT-5IH, Acorp 5HX4, Acorp 586HX, Proteam). I sifted through the spreadsheet looking for every BIOS meant for Intel 430HX and Winbond 877 (about 10) and of those I looked at the similarities with my board, …

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Need help identifying this 386 motherboard please

Posted on 2023-07-15, 12:10

by

by Yrouel

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just bought this motherboard off of eBay and I'd like to identify it. I got it working but I don't know what it is so any help would be appreciated. I tried searching on The Retro Web based on the chipset (ETEQ ET82C491) but there is no matching board. https://i.imgur.com/rjZLGhe.jpg https://i. …

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