Re: Troubleshooting a seemingly dead YMF719 ISA Sound Card
Posted on Yesterday, 15:45
Some success then ~
Re: Troubleshooting a seemingly dead YMF719 ISA Sound Card
Posted on Yesterday, 15:05
And now everything is working ? Or WSS tests still lock up ?
Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility
Posted on Yesterday, 14:36
Laptops can utilize the EEPROMless mode to save on cost, as BIOS can set up things prior, bypassing PnP process etc. When /FORCEPNP is used, SETYMF ignores that nothing on PnP responded (indicating no EEPROM to read conf out of) and the program then blindly assumes that card responds to a magic …
Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility
Posted on Yesterday, 14:18
SETYMF sets the control register to what it thinks it should be, overriding whatever it was set to before. What it does not check is if the port appears used or not, at least on first run where new configuration is created. I am unsure if I can do anything about it though, SETYMF is not really meant …
Re: Troubleshooting a seemingly dead YMF719 ISA Sound Card
Posted on Yesterday, 10:49
See if SETYMF detects the card with /FORCEPNP option, if yes then EEPROM is corrupt and you can write a new one from SETYMF too. But if is not detected the 33.8688MHz crystal should be checked and 78L05 voltage regulator (the little transistor looking thing) to see if it gives 5V output. EDIT: The …
Re: Ultimate Retro board submissions thread: suggest board edits and/or add new boards here
Posted on Yesterday, 07:20
🤣, I saw that board on osta.ee just yesterday.
Re: Need help with a strange soundcard (SB16+ICS wavetable)
Posted on 2022-05-25, 08:47
Those two games everyone know (including me) while some other stuff such as Warcraft I am completely unfamiliar with as the game series itself is not of any kind of interest to me.
Re: Weird OMTi 486 mb
Posted on 2022-05-25, 04:17
Toshiba (NEC and many others) made ASICs for many companies. Gate arrays were pretty common products, with only metal layer(s) customisation needed to get the final design. Decap will tell for sure what exactly goes on inside. UMC was one of the companies that did silicon for others (and themselves …
Re: Weird OMTi 486 mb
Posted on 2022-05-24, 14:36
UMC has a history of cloning stuff (*coughNEScough*)
Re: VxD and DOS drivers for Crystal 4205 codecs?
Posted on 2022-05-24, 10:57
There is no sort of DOS compatibility in that hardware unfortunately, it isn't ISA based at all.
Roland SCB55 rev00 reversed channels fix
Posted on 2022-05-23, 01:02
Roland SCB55 revision 00 has a problem, namely the left and right channels are swapped. Some boards came from factory with wire patches that reverse the channels and later revision 01 swaps DAC output lines going to WB header... but there's a different and better way to do this, and I am unsure why …
Re: AdLib GOLD clone is now a reality
Posted on 2022-05-21, 20:36
Awesome ~
Re: Weird OMTi 486 mb
Posted on 2022-05-21, 05:46
SiS471 and OPTi895 definitely do not share pinout and have different register layout etc. so clones these two are not. Datasheets of both are available for comparison.
Re: Let's make some memories (SIMMs)
Posted on 2022-05-20, 22:46
Yes, you need 1.2mm
Re: Trident 8900D ISA Dead
Posted on 2022-05-20, 07:55
Very good, enjoy the card ~
Re: Mozart OTI601/605, are the drivers for these cross compatible in Win3.1?
Posted on 2022-05-20, 05:36
The package is definitely not meant for win3.x and cannot be installed there as is, but manually created installation may work (updating SYSTEM.INI etc. the right way) but who knows... It is not something I have tried to do or am going to.
Re: Trident 8900D ISA Dead
Posted on 2022-05-18, 22:33
I just now notice the card is 8900D-R, and that R should mean there is an internal ROM. Are you sure the EPROM was harvested from the card (i.e solder work was seen on the vias where you put the socket on) ?
Re: Trident 8900D ISA Dead
Posted on 2022-05-18, 21:08
Here is a BIOS dump straight from the chip from my T8900D based card : http://www.tmeeco.eu/BitShit/PCschit/T8900D.BIN
Re: Modern 2.0 speakers and magnetic shielding (to protect CRTs) - is it even possible?
Posted on 2022-05-16, 16:16
You can only use magnetic material to do magnetic shielding. The shield diverts the field away from what you need to protect and ideally you need an enclosed shape but that is difficult to achieve without some serious metalwork.... I use a flattened piece of PSU cover at my desk and it provides …
Re: ATi Mach64 WinBoost - Memory expansion chips
Posted on 2022-05-16, 15:57
CBR refresh uses the internal refresh counter of the DRAM chip and there are many more rows in the larger chip (and controller doesn't specify which row, it only tells "refresh" and memory chip does rest on its own). All of them must still be refreshed in 16ms (or 32 or 64, depending on partcular …
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