Re: Microscience HH-725B MFM HDD best CHS settings
Posted on 3 minutes ago
Yes, 612 * 4 * 17 * 512 = 21307392 B = 21.3 MB = 20.3 MiB
Re: Microscience HH-725B MFM HDD best CHS settings
Posted on Today, 10:46
I can see Cylinders: 612, Heads: 4. In a PC, MFM pretty much equals 17 sectors/track, 512 Bytes each. Indeed, other platforms may use 32 sectors * 256 Bytes, or some other layout - an MFM drive doesn't care, it's a pretty dumb device, simply records whatever the controller card provides.
Re: Windows 11 CPU requirement removed?
Posted on Today, 09:35
BEEN_Nath_58 wrote on Today, 06:09: Intel 3rd gen Pentium CPU You mean Ivy Bridge, from 2012..2015, right?
Re: What makes (or made) WinME so horrible?
Posted on Yesterday, 16:03
BTW, I've already posted about that abomination too many times, and don't want to repeat myself... Re: I wish I had discovered Windows ME sooner! Re: I wish I had discovered Windows ME sooner! Re: I wish I had discovered Windows ME sooner!
Re: What makes (or made) WinME so horrible?
Posted on Yesterday, 03:04
3. I liked the ME's USB, Network, fast boot, and (I could be wrong) NTFS support. Is it possible to have all this in the 98? - Windows 98 has USB support, only lacks support for USB storage - but it can be added - I have no idea what you liked about ME's network support - there's no important …
Re: ISA card - help with identification
Posted on 2023-06-06, 14:09
Question: how to I test it without a MFM drive? Kinda guessing I can't :) All you can do is checking the controller's BIOS. That controller is for XT computers - they lack hard disk support in the main BIOS, so the support must be provided by BIOS extension installed on the card. You can install …
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-06-01, 16:54
I have a TVGA9000C-based board (albeit with a different layout, like this one ), and can confirm it does support 800x600 256 colors at 60 Hz and worked fine under Win9x in that mode, so I would assume that OP card's memory is too slow (the INB41256 chips are rated 100ns, which could be insufficient …
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-29, 22:29
I'm inclined to trust the datasheet, and believe that 9000C can do 800x600x256 NI with 56..72 Hz refresh rate. But I'm unable to provide any further assistance at this moment. I feel like experimenting with such card myself, but currently don't have the necessary hardware. So, if you really need …
Re: Older MAG monitor causing VGA cards to boot in mono mode?
Posted on 2023-05-29, 20:28
Problems with 8-bit TVGA9000 based ISA video card
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 20:29
There was this problem with earlier Tridents: The Trident 8800 chips have a problem with 256 color modes, as they always double the pixels output in 256 color mode. Thus a 640x400 256 color mode (5Ch) actually uses a 1280x400 frame, requiring at least a multi sync monitor. This problem is fixed on …
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 20:01
GunKneeNeon wrote on 2023-05-28, 19:48: 50.3MHz only corresponds to 39.21Hz. Does that mean what supported by the VGA is not supported by the LCD and vice versa? I'm lost... According to the datasheet, 50.3 MHz pixel clock corresponds to 72 Hz VSYNC. Something's wrong... misconfigured jumpers? …
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 19:37
The datasheet can be downloaded from http://www.vgamuseum.info/index.php/component … ident-tvga9000c For 800x600x256 NI, the highest pixel clock listed is 50.3 MHz...
Re: Bought these (retro) hardware today
Posted on 2023-05-28, 17:55
Still nothing much about that SARC card, jumpers are "C/M" for the first, "PRT" for the next two and CG - EMU on the last. So gotta assume Color/Mono, LPT port address or IRQ settings, maybe both 5/7 320-340 or something, and CGA mode or Hercules emulation... I think maybe. Not sure if the header …
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 17:09
TVGA9000C supports two non-interlaced 800x600 256-color modes: Filename 9000c.jpg File size 85.34 KiB Views 255 views Not sure how to select them... TVGACRTC.EXE may be the proper tool.
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 16:29
OK, I'm inclined to believe those IBM 90x0711 chips are 256K x 3-bit. Does 800x600 16-color work with your monitor? And how about 1024x768 ?
Re: "Input not supported" error when resolution set to 800x600 256 color
Posted on 2023-05-28, 13:31
It's possible the card is configured for 800x600 with interlace. Try SVM.EXE - AFAIR there are options to test various refresh rates and interlace settings. Also, are you sure that card has 512 KB of RAM? It looks weird... 4 x 41256 = 128 KB I don't know about those IBM chips, but they may be 41256 …
Re: Help identify this 386DX-49 motherboard ... EISA?
Posted on 2023-05-26, 23:17
Looks like Opti Local Bus, not EISA.
Re: Intel publishes a white paper on x86S, a 64-bit only architecture
Posted on 2023-05-20, 10:15
I think I'm experiencing Deja Vu... 80376 ???
Re: Why isn't drawn pictures with an old video card?
Posted on 2023-05-19, 18:28
Jo22 wrote on 2023-05-19, 18:14: Hm. Maybe Windows 1.x existed in an OEM version for Tandy? The 2000 wasn't 100% PC compatible, I heard, because it was based on 80186. OK, according to Wikipedia, "A modified version of Windows 1.0 was able to run on the Tandy 2000".
Re: Why isn't drawn pictures with an old video card?
Posted on 2023-05-19, 17:44
Windows 1.x was developed on a platform with a higher-end graphics, a Tandy 2000 (640x400 16c). Can't see any Tandy option in Windows 1.01, nor any other 640x400 hardware. The best is EGA. Notable is the lack of PGC support - I guess the PGC was best suited for vector-oriented graphics in CAD …
Page 1 of 65