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Re: HP D530 SFF screeching noise from mobo on startup, led blinking

Posted on 2024-05-15, 11:46

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No experience with that model, but the "screeching noise" is some feature of the way too many under the name of "HP e-diagtools", its point is that you could call HP, stick your phone up to the PC Speaker, and have their software decode a more detailed error :) You should be able to force that sound …

Re: Windows 98 SE install - How do I target installation on D: ?

Posted on 2024-05-15, 09:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, in general, sys and format /s work with the VBR only :) The first PC BIOS only supports floppies (and the next few ones don't support HDDs either, only option roms that may implement them), so the Int19 first stage bootloader is very simple - read first sector from drive 0 ("A:") up to 5 times, …

Re: Usb as a floppy

Posted on 2024-05-04, 18:28

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I guess it's theoretically possible to spoof a disk as int13 device 0 at the high level (some rather modern motherboards with AMI EFI allegedly have this feature, like my Gigabyte C847N), but here are some alternatives that are here and available now :) - bootable CD (El Torito is by far the most …

Re: Effects of fixing 32GB BIOS limitation?

Posted on 2024-05-04, 18:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Generally* the 8 or 32GB limit jumper just force-enables an HPA, which just hard limits the maximum accessible sector, and a "driver" (part of the OS or a DDO) that knows what's up is supposed to disable it to restore the full capacity – and your hardware clearly supports LBA28 to get to 32 GB so if …

Re: Are there regular users here with profession away from tech industry?

Posted on 2024-04-22, 19:43

in Milliways

in Milliways

I'm a radiographer… for which you need a specific degree, for which I signed up after quitting computer engineering (partially because yes, don't turn your hobby into a job, mainly because too many maths which I totally suck at, partially because it was too early to see your ex daily) Well, I'm also …

Re: Pcmcia adapter help needed

Posted on 2024-04-22, 13:23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

But since it is an adapter, it should be transparent to the os that it is an sd or cf at the other end. It depends - many, probably most, do simulate the most common applicable disk (so presumably a CF for PCMCIA - though you still get their choice of memory mapped/port mapped/IDE compatible modes …

Re: Fastest SD card converter for IDE interface?

Posted on 2024-04-21, 00:03

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

V90 […] SD cards can go up to 90MB/s under ideal conditions, which - like every class rating except A1 - are strictly sequential writes only :) Mind you, it's the same for CFs and all other consumer grade memory cards - which in their respective heyday all pandered to people not wanting to …

Re: Any t5710 Thin Client experts?

Posted on 2024-04-20, 23:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

#3 Not familiar with the model, do you mean it has a single PS/2 port and you can manually select what to use it for? That will (if correctly implemented in the bios…) configure the KBC/SuperIO accordingly, but doesn't mean it can't try to outsmart you (modern designs accept reversed k/m, in fact …

Re: How to install MSDOS 6.22 without disks?

Posted on 2024-04-18, 17:30

in Marvin \ Software

in Marvin \ Software

I did a 6.22 + 3.1 bootable CD (using the dos 7.1 boot disk you can make from win98 add/remove programs lol) back in 2006 - and failed because the DOS installer insists on swapping disks (it checks the label, and you can't easily hotswap the virtual El Torito floppy anyway*), but then I realized …

Re: What Floppy disk drive for BBC Master?

Posted on 2024-04-17, 20:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That really looks like a standard floppy drive connector (not including power which comes via the equally common 4 pins on the left, actually likely just the innermost 2 as most 3.5 inch FDDs don't use 12V), with countless more or less misleading names (Berg, Dupont, arduino, raspberry, 2.54mm …

Re: Another "cannot get CF2IDE to work in DOS" topic

Posted on 2024-04-17, 11:36

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So is it better to keep LBA disabled in BIOS as it was before? A drive that small, if it was an HDD, wouldn't support LBA in the first place and have no problem with untranslated CHS ("normal") either :) But as a CF it probably does - and when using the correct geometry, for this size, Normal/Large …

Re: Changing I/O card's Parallel Port's Address

Posted on 2024-04-13, 11:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

But pin 38 only enables or disables the parallel port, doesn't it? There are three possible addresses plus disabling the parallel port, so that's a total of four options. How can this be configured with just one pin? Address decoding is external, if you look at the datasheet of the UMC you'll see …

Re: Changing I/O card's Parallel Port's Address

Posted on 2024-04-12, 14:32

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

According to the datasheet of the UMC chip, CS2 (pin 38) enables the parallel port when low, so after taking a backup which you just did ;) you could remove all the jumpers, find out which pin now covered by a jumper is connected to pin 38 of the chip, and find if any others that didn't have a …

Re: How hard is it to find retro/vintage computer hardware where you live?

Posted on 2024-04-12, 13:44

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

"Quite a bit…" The dump pays (maybe 4 €, max 4 times/year, in the form of a discount on the yearly garbage tax) if you take large appliances and electronics there on your own which pretty much killed the free (unwiped) PCs and monitors outside the bins… [Not a thing at a tourist town along the coast …

Re: 250GB (!) SSD (using SATA-to-IDE) on SS7 motheboard - What BIOS settings?

Posted on 2024-04-09, 19:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In this context (you're only configuring the implementation of CHS Int13 access) LBA is indeed the least worst :) - all 8 GB (unlike Normal) with the most standardized formula (unlike Large) In fact, the geometries listed for Normal and Large exceed the maximum supported by Int13 CHS commands, and I …

Re: Bios locked on pentium 3 Sony vaio laptop

Posted on 2024-04-05, 18:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Trozzul wrote on 2024-04-04, 01:17: "system disabled 00108" Try it in https://www.derdour.fr/bios/ 😀

Re: Best way to figure out CF geometry

Posted on 2024-03-11, 19:33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Victoria (hdd.by) probably? There's a port of hdparm but never tried it (as in: support the original not the imitation :P) And yup, you'd need an USB-IDE converter that supports UAS or the leading proprietary passthrough methods - which I suspect you won't find in any modern-ish multi card reader …

Re: Adding a molex-connected device to an IBM PS/2 model 30 (8086)

Posted on 2024-03-09, 10:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Easiest would probably be to tap into the motherboard power cable - or is it a proprietary flat cable from the few photos of the assembled PC I can find? Most reversible would indeed be buying the appropriate plug for the motherboard XTA connector and making your power-only HDD cable… Most …

Re: install msdos 6 and win 95 on seperate partitions with a DDO

Posted on 2024-03-09, 08:44

in Marvin \ Software

in Marvin \ Software

In theory you should be able to write down the type/CHS/LBA of the working & formatted logical (not extended!) partition and turn that into a primary one (replacing the extended one) by entering the same with a disk editor, or a strict partition editor like PtEdit or (vintage) Linux fdisk/sfdisk…

Re: Small keyboards with mouse input for retro test benches that will work with PS/2-only motherboards?

Posted on 2024-03-09, 06:24

in Milliways

in Milliways

I have this one (wired, and not from this sketchy website, of course): https://www.tigeratmparts.com/atm-parts-diebold-opteva-operator-keyboard-usb-00104516000a_p627.html 12 € at the electronics fair around 2011 :) And if the touchpad is large enough for you (I think it holds the record for size, …

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