Re: Sound Blaster 16 Bugs and Deficiencies Summary
Posted on 2021-05-06, 13:00
The noisiness of the early cards seems to depend on the individual mainboard they are used with
Re: Need help to improve the support of 486/586/686 class CPUs in CPU-Z
Posted on 2021-04-25, 00:41
IBM 486SLC2 @66MHz L1 Cache should be 16KB, and there is 128K L2 cache which is not detected. Socket type should be QFP-100, the same as the 386SX chips. Filename IMG_20210425_011331b.jpg File size 1.14 MiB Views 256 views Filename IMG_20210425_011416b.jpg File size 1.02 MiB Views 256 views
Re: Need help with old 468
Posted on 2021-04-22, 21:39
is it really necessary to seal the traces? Isn't tinning them not enough?
Re: Life expectancy of an "old" HDD
Posted on 2021-04-22, 00:34
weedeewee wrote on 2021-04-21, 15:24: Schule04 wrote on 2021-04-21, 15:03: - Did not have Seagates, Maxtor, Hitachi or Quantum drives fail yet No maxtors ? That I find extremely hard to believe. 🤔 As i said, just anecdotes. I only have some 10GB and 20GB Maxtors. I have many Seagates though and …
Re: Life expectancy of an "old" HDD
Posted on 2021-04-21, 15:03
My anecdotal experience with drives from the very early 1990s to today: - Conner drives are always dead - 1990s Samsungs are dead, one lost its magnetic field but could be revived by filling it with data multiple times - Toshiba laptop drives from the 1990s either work or they do not, some get stuck …
Re: Can someone identify my old 386 black mini tower?
Posted on 2021-04-21, 01:52
Maybe something made by ESCOM? They made quite a few black PCs in the early 1990s
Re: Identifying bad caps on motherboards
Posted on 2021-04-21, 01:46
Such capacitors with inconsistent packaging were not uncommon in the 1980s but since the 1990s reputable manufacturers managed to package them with better tolerances. Don't think they are caused by bulging I believe it's necessary to remove the capacitor from the circuit if you want to measure its …
Re: 386 Mainbord with annoying RAM issue
Posted on 2021-04-19, 05:46
Did you try it with a battery? And made sure it's connected to the right pins?
Re: Another unidentified 286 board
Posted on 2021-04-18, 15:27
The same board can be seen on this page twice: https://redhill.net.au/b/b-92.html And yes you are missing the RAM
Re: Dallas RTC chip replacement results in video card not found
Posted on 2021-04-16, 02:36
Please post pictures of the original and the "new" Dallas chips
Re: 386 Computer not working
Posted on 2021-04-16, 00:40
The ds12887A is not fully compatible with the ds1287A. Here's an example: https://www.vcfed.org/forum/forum/genres/late … 2991#post682991 If the BIOS did work with the old chip then the "new" one is likely the culprit
Re: Elitegroup NEATsx mainboard resuscitation
Posted on 2021-04-15, 22:44
Great job !! Great restoration I have similar mobo with no bios can u dump it? Thy this bios dump: https://www.vogons.org/viewtopic.php?p=674270#p674270 Here´s the sequel: This week I found a third 20 MHz NEATsx in excellent condition and with near to no battery damage. The happiness didn´t last …
Re: 386 Computer not working
Posted on 2021-04-15, 16:43
I know this is going to sound stupid but which one is the cmos battery? I never seen a cmos battery that isn't just cr2032. I already replaced the real time clock chip but that did nothing. The battery is inside the Dallas chip. The replacement chip might not be compatible and/or its internal …
Re: Need help to improve the support of 486/586/686 class CPUs in CPU-Z
Posted on 2021-04-10, 17:46
It's interesting. Some clicks take minutes, but for the most part it's surprisingly fast. And this is with only 5MB RAM. I guess having an accelerated graphics card helps a lot
Re: TeleVideo 286 Machine - Need help!
Posted on 2021-04-09, 07:04
Are you sure that the HDD is the original one? If it came from another machine with a different controller card, it often has to be low level formatted to be usable.
Re: Elitegroup NEATsx mainboard resuscitation
Posted on 2021-04-09, 05:43
Another update: weedeewee was right, the 8 empty sockets were for an alternative memory population. After removing all the 256K and 64K DIPPs the board started to recognize the 256Kx4 chips I put there properly as 1MB, and together with the SIMMs the board now reports 5MB total (of which 640KB + …
Re: Need help to improve the support of 486/586/686 class CPUs in CPU-Z
Posted on 2021-04-09, 00:32
Intel 386SX 16MHz Filename 386sx.jpg File size 152.98 KiB Views 395 views With 1 waitstate: Filename 386sxbench.jpg File size 132.62 KiB Views 395 views With 0 waitstate: Filename 386sx_0ws.jpg File size 203.67 KiB Views 386 views Filename report.zip File size 2.23 KiB Downloads 7 downloads
Re: HP T5710 compatible flash disks
Posted on 2021-04-07, 06:15
Use rufus to create the bootable usb drive, make sure to safely eject it before unplugging Boot from your USB drive to DOS only, use fdisk to create a partition and format the internal HDD, run "sys c:" to install a minimal DOS to the HDD, use xcopy to copy the windows setup disc to the HDD, boot …
Re: USB Devices heavily slow down my Pentium III
Posted on 2021-04-07, 01:18
Some boards also have obviously buggy "legacy usb" implementations but I don't think its relevant here, op did not mention using a mouse or keyboard with USB
Re: Victor V286P - Looking for any technical documentation and BIOS dump
Posted on 2021-04-06, 22:20
You could probably dump the BIOS using DEBUG or Navrátil Software System Information
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