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Re: Adding a floppy disk controller to new hardware.

Posted on 2023-09-28, 15:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's a buslogic PCI SCSI card that lists floppy support... but I don't see a 34 pin interface on it. Therefore I wonder if it has special onboard BIOS extension for handling SCSI floppies... or not and a mistake in tech specs has just been copy pasted for decades. Perhaps it means SCSI floppy …

Re: Best method to backup my old floppies to a modern Windows PC?

Posted on 2023-09-27, 23:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wait, such a thing as 800K floppies for Macs existed? I thought people meant they were 720K floppies that macs format as 800K. These were originally 1.44M floppies that I formatted on said Mac to whatever format the Mac used. All of these floppies physically are 720K or 1.44M floppies, vast …

Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-27, 07:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Max, I've used your bootdisk to format my 82,4 GB IDE disk on an ACARD IDE-to-SCSI adapter on the Adaptec 2842VL with mkarcher's patched BIOS. It passed without an error. It is the same result to my Windows 95 B bootdisk, which I used before. In both cases I have zeroed sectors 0 and 63 before and …

Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-26, 21:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2023-09-26, 20:12: Note the displayed size... This looks like the standard FDISK display error.

Re: Behold: A 386-computer (kind of) currently still in production and available in the market!

Posted on 2023-09-25, 14:45

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

386 EX = 386 SX SOC with 26 bit address bus However, this computer seems to have soldered SRAM and the manual does not say anything about upgradeability. And it looks like it has no graphics card installed, so you have to use the serial line.

Re: I need Help with Flight SIM

Posted on 2023-09-25, 05:44

in DOSBox Games/Apps

in DOSBox Games/Apps

leileilol wrote on 2023-09-25, 03:48: "FLIGHTSIM51" is a long name. DOS does not do names longer than 8 characters Except volume labels. They can have 8+3 = 11 characters. But C:\FLIGHTSIM51 won't work.

Re: Sound card too quiet

Posted on 2023-09-24, 18:35

in Marvin \ Sound

in Marvin \ Sound

My theory is that the resistor was operating as a current limiter instead of a wire link / inductor and the power available to the op-amp and ALS100 chip on the +5VA rail was way too low to get a decent sound output. I found this initially by checking the + (+5VA) and - (-5V) of the op-amp which …

Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-24, 12:03

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I currently use an 82.4 G IDE drive using an ACARD adapter on the 2842VL (single, ID0). SCSISelect 1.01 is currently verifying that disk and does a wraparound at 12997 MBytes. FDISK from Windows 95 B is showing a disk capacity of 12993 MB. We'll do some more examination soon.

Re: Need Help finding RAM type for Pentium-lll-s , 1.4ghz CPU

Posted on 2023-09-22, 17:51

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Which memory module and timings do you use (now)? What's about a thorough test with Memtest86+?

Re: Need Help finding RAM type for Pentium-lll-s , 1.4ghz CPU

Posted on 2023-09-22, 14:06

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Intel486dx33 wrote on 2023-09-22, 13:05: Memory is a single stick of SDRAM 133, 256mb Your memory module is a PC133 CL3.

Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-21, 21:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Next up delete the existing NTFS partition on the minion drive and create a primary DOS partition using 100%. For me, this is a bit confusing though. I recommend to reboot the system between deleting the partition and creating a new one (cold boot ofc). It is because Adaptec controllers are a bit …

Re: Need Help finding RAM type for Pentium-lll-s , 1.4ghz CPU

Posted on 2023-09-21, 05:06

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I purchased it used and it came with CPU and RAM. ... The RAM Stick does not have any markings as to what speed or type it is ? 1) You may use CPU-Z to determine RAM type (PC66/PC100/PC133) and CL (CL2/CL3). Since SDRAM every module has a SPD ROM which contains informations about timing parameters. …

Re: 121mb Conner CP2124 Jumper Confusion

Posted on 2023-09-21, 04:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you have a 2.5" to 3.5" adapter?

Re: 121mb Conner CP2124 Jumper Confusion

Posted on 2023-09-20, 18:32

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

CD means drive C (master/primary) or drive D (slave/secondary) It seems like you have to install the jumper to short both right pins.

Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-20, 15:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Considering the 2.11 BIOS work flawlessly with everything except the 73GB drive, I'm not convinced there is a hardware incompatibility. If there were, I don't think it would be working perfectly with my 9 and 4GB drives. Too bad we cannot debug your system remotely (by using a terminal and a RS232 …

Re: The 486 I swore I'd never build.

Posted on 2023-09-20, 08:36

in Marvin \ System Specs

in Marvin \ System Specs

Perhaps this is a socket for a dirty tag ram or the configuration with 2x 8K tag chips.

Re: Windows 7 on 586-class PCs

Posted on 2023-09-20, 08:32

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Jo22 wrote on 2023-09-20, 04:33: Cool 😎👍 Reminds me of https://www.winhistory.de/more/386/winq.htm Yes, but there's a fault on that page. I did run Windows NT 3.51 on a 486/33 with 5 MB RAM only. I'm not sure whether I have needed those 8 MB which were quoted during the installation process...

Re: the Ultimate Semi Vintage Windows OS

Posted on 2023-09-19, 12:54

in Milliways

in Milliways

Vintage: up to 2000 (different architectures supported) Semi vintage: NT 5.1 (XP) & 5.2 (2003) x32 Too new: NT 5.1 (XP) & 5.2 (2003) x64 (too new, laid the path for current x64 systems)

Re: Upgrading a 486SX (IBM PS1)

Posted on 2023-09-17, 17:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

... Hacking in LBA support is as far as I'm aware beyond what people can reasonably do with BIOSes right now, sadly. ... mkarcher is quite good in it, as far as SCSI controllers are concerned. However, SCSI controllers without INT13 extension support already use sector numbers internally ("LBA") …

Re: Upgrading a 486SX (IBM PS1)

Posted on 2023-09-17, 17:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

... Hacking in LBA support is as far as I'm aware beyond what people can reasonably do with BIOSes right now, sadly. ... mkarcher is quite good in it, as far as SCSI controllers are concerned. However, SCSI controllers without INT13 extension support already use sector numbers internally ("LBA") …

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