Re: Lets make new M919 Cache sticks?

Posted on 2024-02-19, 01:14

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you mean you dont like soldering SOJ, or the footprint is too narrow? erm, I used even narrower SOJ footprints on https://github.com/raszpl/FIC-486-GAC-2-Cache-Module, hope it comes out ok :) I feel like the the footprint is too wide for SOJ and too narrow for TSOP. The SOJ were definitely …

---

Re: Lets make new M919 Cache sticks?

Posted on 2024-02-18, 20:00

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I built two of these modules. I've done a decent amount of SMD soldering, but man are these an exercise in patience to build up. The pads are barely big enough for the TSOP packages to the point where you are basically soldering under the legs with nothing sticking out. Maybe if you used a stencil …

---

Re: Lets make new M919 Cache sticks?

Posted on 2024-02-11, 21:27

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you go double thickness on the gold contacts? That's what I did on my order; it was about $6 more per order. Decision was based on forum comments concerning JLCPCB's poor quality contact finish. I got these options. How do you specify double gold thickness? My understanding is that when you …

---

Re: Lets make new M919 Cache sticks?

Posted on 2024-02-11, 20:59

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If anyone is interested in building up a cache module for yourself. I had a few extra PCBs made. PM me if you are interested, asking $8+ shipping/PCB. Compared to the $5 JLCPCB/PCBWay specials, apparently these boards are pretty expensive to have made with the ENIG finish, gold fingers, 4 layers ( …

---

Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2024-02-11, 14:43

by

by mbarszcz

in Marvin \ Sound

in Marvin \ Sound

I'm glad to see how well these are selling for Polpo. Congrats to everyone who got one. Hopefully the next batch comes soon.

---

Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2024-02-05, 16:46

by

by mbarszcz

in Marvin \ Sound

in Marvin \ Sound

Hey Guys, I've just finished a build of a v1.1 board yesterday. Unfortunately pgusinit reports 'card not responding to GUS command'. Gravis software report card not found. Pgusinit /f works with every file. Card initialises ok with Adlib fw, Monkey Island works fine with 'monkey a', but no sound. …

---

Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-11-25, 23:03

by

by mbarszcz

in Marvin \ Sound

in Marvin \ Sound

I love building projects, but coordinating the parts and assembly with JLCPCB for a quantity of 1 is just too much to deal with. It's like all the hassle of getting the parts together with none of the fun of building it. I'll just eagerly wait for the next batch.

---

Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-10-14, 15:16

by

by mbarszcz

in Marvin \ Sound

in Marvin \ Sound

Polpo, I stumbled upon this project after seeing Adrian's video on it and have been looking into building one. I apologize if you already are aware of this, but I wanted to share how I had some HardMPU boards made up at JLCPCB. On your github you mention the following regarding the board options: …

---

Re: PCI Nvidia Riva TNT2 M64 not working in socket 7 PCI - Fix!

Posted on 2023-08-05, 05:52

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

Here's some benchmarks for you: Many motherboards lacking 3.3v don’t even route those pins to other slots. My go to for socket 7 is radeon 7000-9xx0 I see the most of those working of any cards I have. Anything newer isn’t going to work because of pci spec/bios/ or drivers. On a system like yours …

---

Re: PCI Nvidia Riva TNT2 M64 not working in socket 7 PCI - Fix!

Posted on 2023-08-04, 15:49

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

Good job! I took the 5V from before the polyfuse that carries 5V to pin 9 of the VGA port, and fed it back into the unpopulated capacitor pads at the bottom of the board. I added a small switch on the top of the board that would ground the enable pin so the regulator could be easily switched off. …

---

Re: PCI Video card works in one PC, not in another

Posted on 2023-08-04, 02:40

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks to this thread I was able to get TNT2 M64 PCI working in my socket 7 system (P/I-P55T2P4 Rev 3.10). It was the same problem (no 3.3V on the PCI slot), so instead of trying to add 3.3V to the slot, I added 3.3V to the card with a small TPS62827 buck converter module. PXL_20230804_014700702.jpg …

---

Re: PCI Nvidia Riva TNT2 M64 not working in socket 7 PCI - Fix!

Posted on 2023-08-04, 02:36

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

The board still works in my P4 system with the regulator off Filename PXL_20230804_014817673.jpg File size 1.14 MiB Views 1338 views And in my Socket 7 (5V) system with the regulator enabled (note the green light)! Filename PXL_20230804_015010326.jpg File size 1.12 MiB Views 1338 views Filename PXL …

---

PCI Nvidia Riva TNT2 M64 not working in socket 7 PCI - Fix!

Posted on 2023-08-04, 02:34

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

I picked up a Riva TNT2 M64 as a PCI graphics card for my socket 7 system (no AGP) to replace my S3 Trio 64V2/DX. The S3 is a pretty reasonable 2D card, but without a Voodoo in the system and having no 3D capabilities at all, it is limiting in Windows for just about anything that uses Direct3D. I …

---

Re: HardMPU, anyone?

Posted on 2023-07-29, 21:08

by

by mbarszcz

in Marvin \ Sound

in Marvin \ Sound

I can give you a rundown of how I had mine made and which options I used if you like. I have 3 of them in different PCs and they're all working great. I would love to get a rundown on this. I have never made my own run of PCBs before, and so any tips and suggestions is super appreciated. Sorry it's …

---

Re: Is this 3DFX Voodoo2 Broken?

Posted on 2023-06-19, 01:53

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

It really does look like it in that picture, but they weren't bridged. It must have been the light reflecting or a piece of dust or something. Edit: it was the light, I went to take the same shot again and the light reflected in the same way, weird. There were a few corner pins that were a little …

---

Re: Is this 3DFX Voodoo2 Broken?

Posted on 2023-06-18, 03:48

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

I was able to spend some time looking at it tonight and here's what I learned (and a few things that didn't help) First off, I attached a few pictures of the card to this reply. My first thought was that perhaps it was a heat related issue, so I added some heatsinks to the 3 main chips. That …

---

Is this 3DFX Voodoo2 Broken?

Posted on 2023-06-13, 01:00

by

by mbarszcz

in Marvin \ Video

in Marvin \ Video

I picked up my first Voodoo Card (a STB BlackMagic Voodoo2 12MB) to try out some glide games and was disappointed to find that the output was a mess. Whenever glide is active, the video output is messed up with a random red noise pattern across the image. It is worse in some areas than others. I …

---

Re: Asus P/I-P55T2P4 Rev 3.10 Tag Ram

Posted on 2023-05-28, 16:43

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the copy of CTCM7. That was a really hard piece of software to find. Just like you guys said, CTCM7 shows the expected results of caching 64MB+ with the tag installed and the jumper in the 512MB position. I appreciate you taking the time to clarify and explain what the jumper and the tag …

---

Re: Asus P/I-P55T2P4 Rev 3.10 Tag Ram

Posted on 2023-05-28, 05:11

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

majestyk wrote on 2023-05-28, 05:09: The reason why I recommended you use CTCM"7" (seven!) is that it´s results are more straight forward. It explicitly tells you the cacheable areas of L1 and L2. Where can I find CTCM 7?

---

Re: Asus P/I-P55T2P4 Rev 3.10 Tag Ram

Posted on 2023-05-28, 00:18

by

by mbarszcz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm running a Pentium MMX 233MHz. Here are my results from CTCM without the tag chip, not sure what I'm supposed to be looking at 😕. It looks like ctcm is only looking at 64MB even though i have 96MB installed, just like cachechk. Output of mem: Memory Type Total Used Free ---------------- -------- …

---