Re: Himem limits XMS to 32 MB and ignores the above!
Posted on 2018-08-02, 15:45
Then, if I install HIMEMX, what should I use for UMB and, occasionally, EMS? EMM386 or JEMM386? Thanks
Re: Himem limits XMS to 32 MB and ignores the above!
Posted on 2018-08-02, 15:44
gdjacobs wrote: HIMEMX can handle large amounts of RAM and it's more efficient. I'd give it a try. Oh wow, thanks bro! Never heard of it before.
Re: I knew it! 40 MHz FSB beats them all!
Posted on 2018-08-02, 14:25
A 50mhz PCI bus is of course a limiting factor and you have to use a Matrox cards to get it working properly(NVidia ones can also handle it). Also the cache has to be selected quite "thoughtfully". I have all 486s running in a 150@50 config and its the sweet spot when it comes to optimal 486 …
Re: MS-DOS FAT16 boot SD card oddly write protected under Win 10
Posted on 2018-08-02, 14:16
I see. You know the drill much better than me! Thanks and all the best! (or should I say, all the beast 🤣)
Re: Compaq 386s Deskpro SCSI
Posted on 2018-08-02, 13:48
On the SCSI note actually, one of the other investments I was planning for this wee beastie is a SB16 CT1770 with SCSI on board, but what exactly does a soundcard do with SCSI? My guess is that's for internal SCSI CD-ROM and similar optical devices: when they started coming out, people had old …
Re: I knew it! 40 MHz FSB beats them all!
Posted on 2018-08-02, 13:38
I think the main reason the 3D Bench score is higher is because the graphics card is running at 40MHz. If you do tests that depend more on integer performance, the 133 will still pull ahead. Good point! thanks!! The video is from October: https://www.youtube.com/watch?v=jlQXS1VrFUQ Not sure you …
Re: MS-DOS FAT16 boot SD card oddly write protected under Win 10
Posted on 2018-08-02, 13:18
Just discovered a couple of days ago my SD card reader is dead under Win10 as well (doesn't even show up in dev manager) but boot using Linux and everything works so both SD card and reader are fine. I assume its some weirdness under Win10 (originally it was a Win7 box) which I can't fathom either. …
I knew it! 40 MHz FSB beats them all!
Posted on 2018-08-02, 13:12
Hi guys, excited to show you some data from a great guy who made a lot of tests on a 5x86 at various frequencies. So, as expected, the advantages of a 40 MHz bus are well worth it! You can see in some graphs as the 3D bench frame rates are higher for a 120 MHz CPU with bus at 40 MHz than a 133 MHz …
Re: Creative SB Pro vs SB 16 ASP
Posted on 2018-08-02, 00:14
Stiletto wrote: Moved. Thanks!!
Re: Creative SB Pro vs SB 16 ASP
Posted on 2018-08-01, 23:34
For the Moderator(s): My apologies, I didn't realize there's a SOUND section of the forum. Will you please move the thread there? Thanks so much!
Re: An intriguing question about DOS memory
Posted on 2018-08-01, 23:32
That 1 megabyte isn't mapped to the CPU's addressing space in a linear fashion, but I guess the exact mapping depends on the chipset. As far as the addressing space goes, the area between the 640K and 1024K boundaries is for hardware devices and ROM, never RAM (unless shadowing is enabled); so …
Re: MS-DOS FAT16 boot SD card oddly write protected under Win 10
Posted on 2018-08-01, 23:14
thank you guys. My IDE adapter works with unprotected card, so I kept the switch on NOT-protected. I didn't try external readers though! Trying.... it works! So, other SD card with the internal laptop reader works! The affected SD card works with the USB external reader. Now who can explain that! …
MS-DOS FAT16 boot SD card oddly write protected under Win 10
Posted on 2018-08-01, 22:40
Hi guys, it's incredible! This is one of those times when computers seem to act on purpose to drive you nuts! So I have this 512MB SD Card, bootable, FAT-16, which I use as HDD under MS-DOS 6.22 via IDE to SD card adapter, all good. I loaded this card in the past using my Core i3 Win10 laptop, …
Re: Himem limits XMS to 32 MB and ignores the above!
Posted on 2018-08-01, 22:37
Solved! I removed the 3rd 32MB SIMM module, so now I have 68 MB (4 soldered + 32 + 32), and HIMEM gets up to 64 MB XMS. It's all good. 100 MB of RAM in an MS-DOS 6.22 system was a waste.
Himem limits XMS to 32 MB and ignores the above!
Posted on 2018-08-01, 20:24
Hi guys, so, finally got the extra RAM. Compaq 486 100 MB RAM (4 MB motherboard-embedded + 3 modules of 32 MB each to fill all the 3 available slots). MS-DOS 6.22 Everything installed and configured (including Himem.sys and EMM386 NOEMS), but.... Himem only sees about 32 MB XMS! Everything else …
Re: Advice on 486 build ?
Posted on 2018-08-01, 17:39
not surprised as it was a "modern" card. In the corrected link I edited above (gotta do highlight, copy, and paste), there are many Lagunas / GD5464 drivers for Win 3.11 specifically, you can try them all if you want.
Re: Advice on 486 build ?
Posted on 2018-08-01, 17:30
Also, for the Cirrus Laguna, try these drivers, some of them show Windows 3.11 in the list of supported OSs: https://members.driverguide.com/matches.php?h=687992577014a9afe9fe2e1f8e5d618d&ids[0]=112902&ids[1]=95626&ids[2]=835371&ids[3]=1077094&ids[4]=89293&ids[5]=353552&ids[6]=132908&cid=216&model= …
Re: Advice on 486 build ?
Posted on 2018-08-01, 17:25
Also, more info on your cirrus card on page 214 here: https://books.google.ca/books?id=AnmwQa8W3JUC … 0gd5464&f=false
Re: Advice on 486 build ?
Posted on 2018-08-01, 17:13
So what 486 CPU's are 5v ? I'm not sure but my guess is that 486 33, 50, and 66 are all 5 v. Maybe if you Vogons-post a photo of your CPU someone will surely be able to tell you. I have a 528mb WD hard-drive. They are in good condition with hardly any use. runs good and quite for old IDE drive. Oh …
An intriguing question about DOS memory
Posted on 2018-08-01, 16:53
Hi guys, I recently realized something very weird happened about 26 years ago with a PC. Being it a 286, I could not use EMM386, but I could and did use HIMEM.SYS (MS-DOS 5.0). Now, we all know that the HMA consists in the first 64 KB of RAM above the first 1024 KB of memory. Which means it is the …
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