Re: IBM Aptiva 2168-M61 L2 Cache COAST Compatibility
Posted on 2024-05-24, 05:03
eeew async, if you have EDO ram this cache module might actually lower performance in some scenarios.
Re: Trying to save an ASUS ISA-386U3Q, ideas appreciated.
Posted on 2024-05-23, 14:48
resmpc pin 133?
Re: Mini PCi VGA Card Quake Comparison on Cyrix 5x86 system
Posted on 2024-05-23, 14:45
isnt 8900C the fast one? https://thandor.net/benchmark/33 hmm no, that would be 8900D. Still the difference to PCI is only ~30%
Re: Trying to save an ASUS ISA-386U3Q, ideas appreciated.
Posted on 2024-05-23, 14:11
reset signal is not reaching one of the components, start with three big UMC chips and keyboard controller
Re: Mini PCi VGA Card Quake Comparison on Cyrix 5x86 system
Posted on 2024-05-23, 10:31
10fps at 320x200 is only 640KB to be transferred every second
Re: Mini PCi VGA Card Quake Comparison on Cyrix 5x86 system
Posted on 2024-05-23, 08:56
ISA trident would make no difference here, CPU is heavily bottlenecking.
Re: Mini PCi VGA Card Quake Comparison on Cyrix 5x86 system
Posted on 2024-05-23, 06:19
Looks like standard 320x200 Cyrix framerate https://thandor.net/object/170
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2024-05-23, 05:12
8257 legacy compatibility is still present all the way to at least 2014, I think its missing from 100-300 series chipsets from 2015-18.
Re: SBEMU: Sound Blaster emulation on AC97
Posted on 2024-05-22, 11:28
After learning about https://www.vogons.org/viewtopic.php?f=62&t=71878 specifically its method of emulating DMA with TRS and fifo https://www.vogons.org/viewtopic.php?p=947337#p947337 https://www.vogons.org/viewtopic.php?p=948450#p948450 https://www.vogons.org/viewtopic.php?p=949710#p949710 it …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2024-05-22, 10:47
ok got it Re: Newly made PCMCIA sound card Re: Newly made PCMCIA sound card >dma emulation interrupt calls. Re: Newly made PCMCIA sound card yep, pretty straightforward and doesnt require protected mode trapping
Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)
Posted on 2024-05-22, 07:03
I just watched this video by someone who managed to wire a Raspberry Pi Pico up to the LPC bus of a more modern motherboard in order to use the Pico as a BIOS POST card. So apparently the GPIO pins of the RP2040 can be interfaced with the LPC bus as well. I posted about this 3 months ago https:// …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2024-05-22, 05:12
there is a DMA emulation technique used by IBM on their 3D Sound PCMCIA card, apparently patented by them so nobody else used it. yyzkevin has reimplemented it for his PCMCIA card and it's working with Sound Blaster with digital sound even in DOS protected mode any technical details on how that …
Re: Did UMC ever make DRAM?
Posted on 2024-05-22, 03:17
UMC the foundry 100% manufactured ram at some point, if not fully commercially then to hone fabs capabilities. UMC design house? There is very little margin in RAM, UMC engineers mainly did value add products. All UMC build is a thing I'd like to do aswell. Unfortunately UMC also never made any PC …
Re: Pentium3 to look for?
Posted on 2024-05-20, 11:08
For example, there's a rig sold for about 80 $ here (Europe) that has a Pentium3 and a Geforce2 MX 440 on board. The seller listed the P3 as "550MHz". +asus P2b-ae is not a terrible rig. Yeah, its Asus OEM for Sony, but at least its 440BX. Normally BX board alone will cost you at least $50. Sure, …
Re: I recently found this hardware, AKA the Dumpster find thread.
Posted on 2024-05-20, 10:27
Why? I would expect Matrox drivers to have very good dx6-7 support.
Re: Voodoo locked at 640x480
Posted on 2024-05-20, 05:16
at 16 colors or any depth you want? did you use same monitor cable for both monitors? what monitor is installed in windows? http://ps-2.kev009.com/pcpartnerinfo/ctstips/3ff6.htm
Re: SVGA/VESA programming
Posted on 2024-05-20, 01:04
you cant color cycle a bus driving on the road
Re: Help with upgrading a Compaq Deskpro
Posted on 2024-05-20, 00:45
cache is unobtanium Vram upgrade is pointless, what even is the VGA chip on this board? looks like something Compaq cooked themselves and got manufactured by LSI? Is it VLB? is it half decent? 4/66 means the only CPU upgrade possible is with Overdrive or one of those https://www.vogons.org/viewtopic …
Re: Voodoo locked at 640x480
Posted on 2024-05-20, 00:24
>640x480 and no way to change that. what does that mean exactly? system crashes? no other resolutions showing up? is that all in windows?
Re: 440(BX/LX, etc.) AGP GPUs compatibility or rather should I say incompatibility?
Posted on 2024-05-19, 23:51
Afaik Quadro and Ultra are using same pcb design with SC1175 regulators? Those are able to report brownouts. Its possible Quadro bios being more fancy actually monitors that.
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