Scrap Computing
Scrap Computing
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Repairing a butchered ASUS P5A Part 2.
This is the followup repair video of an ASUS P5A super socket 7 motherboard.
Part 1 is ua-cam.com/video/MigVZLc_Mgw/v-deo.html.
In this video we are looking into how the CPU's VCC2DET pin interacts with the VCC3 power controller and finally figuring out the power issue we had in part 1.
We are also adding the missing 78L05 regulator that powers the ESS solo-1 audio chip.
We are also attempting to fix the socket's broken mount with super-glue using white-tack as a mould.
Finally we are repairing the damaged ISA slot.
We are trying out some games, including Duke Nukem 3D, Monkey Island and Quest for Glory Shadows of Darkness.
ESS Solo-1 DOS drivers: www.vogons.org/viewtopic.php?t=40723
7407 image: commons.wikimedia.org/wiki/File:7407_Hex_Buffer.png public domain
Music:
- Main Theme from Quest V Reorchestrated and Remixed
- A Job Not So Well Done from Quest V Reorchestrated and Remixed
- Simulation Terminated from Quest V Reorchestrated and Remixed
- Academy Hallways from Quest V Reorchestrated and Remixed
- Battle Cruiser from Quest V Reorchestrated and Remixed
- Stalker from Duke Duke Dance Party
by the Space Quest Historian www.youtube.com/@spacequesthistorian Troels Pleimert spacequesthistorian.bandcamp.com
Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) creativecommons.org/licenses/by-nc-sa/3.0/
Переглядів: 1 431

Відео

Can we save this Butchered ASUS P5A Super Socket 7 Motherboard? Part 1.
Переглядів 1,8 тис.3 місяці тому
We are attempting to repair an Asus P5A super socket 7 board that has had several components de-soldered and removed. On top of that it has damaged traces and has a power regulation issue on the 3V rail. In the process we are replacing the HIP6012 PWM controller and we are investigating the power circuit. Part 2: ua-cam.com/video/-WO0Vd2BWVc/v-deo.html Coil calculator: coil32.net/online-calcula...
MCE Blaster MDA,CGA,EGA to VGA Adapter Released! (Part 2)
Переглядів 2,6 тис.3 місяці тому
This video dives into some of the technical challenges of building an MCE adapter using the Pi Pico. It goes over sampling of the input pixels, and how it relates to the card's pixel clock. Finally it shows the MCE Blaster working with several games (Prehistorik, Prince of Persia and Quest for Glory) on a couple of ISA video cards. Project Page: github.com/scrapcomputing/MCEBlaster MCE Blaster ...
MCE Blaster: Pi Pico based MDA/CGA/EGA to VGA adapter (Part 1)
Переглядів 4,2 тис.4 місяці тому
We are presenting how vintage computer video works and how we can build a Raspberry Pi Pico based MDA/CGA/EGA to VGA adapter. EGA: en.wikipedia.org/wiki/Enhanced_Graphics_Adapter CGA: en.wikipedia.org/wiki/Color_Graphics_Adapter MDA: en.wikipedia.org/wiki/IBM_Monochrome_Display_Adapter MCE Blaster Part 2: ua-cam.com/video/Neg1WR7Hz5s/v-deo.html The Rasteri's (@TheRasteri) adapter: - ua-cam.com/...
Throttle Blaster rev 0.3: Controllable by serial port
Переглядів 2,7 тис.6 місяців тому
We are putting together the PCB of the Throttle Blaster revision 0.3, and demonstrating the serial port functionality. Throttle Blaster part 2: ua-cam.com/video/nGy8OmOe_34/v-deo.html Throttle Blaster part 1: ua-cam.com/video/9uNml2j6sy0/v-deo.html Project page: github.com/scrapcomputing/ThrottleBlaster Kermit program: www.columbia.edu/kermit/mskermit.html Music: - Battle Cruiser from Quest V R...
Scrapface (April fool's day joke 2024)
Переглядів 6856 місяців тому
High Treason: @HighTreason610 ua-cam.com/video/s3GEaIT0Vxk/v-deo.html Music: - Stalker from the Duke Duke Dance Party Album Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) creativecommons.org/licenses/by-nc-sa/3.0/
Throttle Blaster: An add-on Turbo circuit released! (Part 2)
Переглядів 1,4 тис.7 місяців тому
In this video we are going through some of the features of the updated Throttle Blaster. This version works with either a rotary encoder, a single button, or a potentiometer, and the video shows how they work. We are also trying Digger in DOS, the Secret of Monkey Island, Grim Fandango and Quest for Glory Shadows of Darkness on Windows 98. Finally we are testing mp3 playback on Windows under di...
Throttle Blaster: A hardware Turbo knob for slowing down the CPU speed (Part 1)
Переглядів 4,1 тис.8 місяців тому
This video is introducing the Throttle Blaster, a simple hardware project based on a Raspberry Pi Pico that allows you to slow down your vintage PC at a very fine granularity. We are showing two systems, a Pentium iii and an Athlon XP, both of which can be throttled down to the performance levels slower than the original IBM PC. Throttle Blaster project page: github.com/scrapcomputing/ThrottleB...
Horizontal Barrel Battery Blaster: A CR2032-based barrel battery drop-in replacement
Переглядів 2,1 тис.11 місяців тому
This is a small PCB with a CR2032 battery holder that works as a drop-in replacement for leaky barrel batteries commonly found in 386 and 486 PC motherboards. The coin-cell battery is mounted horizontally on the motherboard. It is compatible with through-hole, SMD 1206 or SOT-23 diodes. Project page: github.com/scrapcomputing/HorizontalBarrelBatteryBlaster Previous Barrel Battery Blaster Videos...
Repairing a tricky L2 cache issue of a SOYO 4SAW2 486 Motherboard
Переглядів 4,5 тис.Рік тому
We are repairing a damaged SY-4SAW2 late 486 motherboard based on the SiS 85C496 chipset, with leaky battery damage, missing/damaged components and broken keyboard connector. The missing components were next to the SC464 PLL. The PC was hanging during the external (L2) cache detection. TheRetroWeb: theretroweb.com/motherboards/s/soyo-sy-4saw Atheatos Channel: Mods: ua-cam.com/video/eUaoXPgnZvo/...
Rescuing an MS-5185 Super-Socket 7 board with on-board ATi Rage PRO and Creative Audio-PCI
Переглядів 2,2 тис.Рік тому
We are repairing a Gateway MS5185 motherboard based on the ALi Aladdin V chipset, that has both an ATi Rage PRO Turbo AGP graphics chip with 8MB of RAM and a Creative ES1373 Ensoniq PCI audio chip on-board. Then we are trying out a few DOS games, including Duke Nukem 3D, Jazz Jackrabbit, Quest for glory Shadows of Darkness, and Monkey Island. We are also adding the unpopulated ISA slot along wi...
Rescuing a Prox-1560 Super Socket 7 SBC with an Aladdin V chipset!
Переглядів 1,6 тис.Рік тому
We are repairing a small industrial SBC Protech Prox-1560 with a super socket 7 K6-2 CPU, then we are connecting an AWE64 sound card and trying out some DOS benchmarks and games. ISA Backplane photo from LGR's video: ua-cam.com/video/Q4qJf50YSVk/v-deo.html TheRetroWeb: theretroweb.com/motherboards/s/protech-prox-1560 ISA Pinout image CC BY-SA 4.0: en.wikipedia.org/wiki/Industry_Standard_Archite...
Embarrassing mistakes made restoring this Biostar 486 motherboard
Переглядів 1,6 тис.Рік тому
In this video we are restoring a 486 Socket 3 motherboard, and we are trying to fix several issues. Some of the highlights include: - Replacing the ODIN RTC module of a 486 motherboard Biostar MB 1433 50UIV with an NWx287 CR2032. - Accidentally inserting my 486 DX 33 CPU the wrong way in and killing it. - Trying to get my 486 DX2 66MHz CPU to work, which stubbornly refused to do so... - Trying ...
NWx287 RTC Module CR2032 edition
Переглядів 1,4 тис.Рік тому
This video is about the modified NWx287 RTC module by Necroware that works with a CR2032 battery instead of a CR1225. It is based on a BQ3285 RTC chip (SSOP-24 package). This boards is a drop-in replacement for some of the Dallas, Benchmarq, Odin RTC modules, like the DS1287 and BQ3287. Project page: github.com/scrapcomputing/nwX287.cr2032.ssop.mot Original NWx287 project: github.com/necroware/...
Vertical Barrel Battery Blaster: A CR2032-based drop-in replacement for leaky CMOS batteries
Переглядів 1,7 тис.Рік тому
A drop-in replacement for leaky CMOS batteries, commonly used in 386 and 486 motherboards. This one uses a vertical CR2032 battery holder. Project page: github.com/scrapcomputing/VerticalBarrelBatteryBlaster Not-a-varta: github.com/wiretap-retro/Not-A-Varta-CR2032 Music: Track Stalker from the Duke Duke Dance Party Album by the Space Quest Historian, Troels Pleimert spacequesthistorian.bandcamp...
MHz Display Blaster: A 7-segment frequency display clone
Переглядів 1,8 тис.Рік тому
MHz Display Blaster: A 7-segment frequency display clone
Serial Mouse Blaster: The Quest for the Serial Optical Mouse (part 3)
Переглядів 1,3 тис.Рік тому
Serial Mouse Blaster: The Quest for the Serial Optical Mouse (part 3)
Replacing a CMOS battery with a Super Capacitor?
Переглядів 4,1 тис.Рік тому
Replacing a CMOS battery with a Super Capacitor?
Serial Mouse Blaster: Quest for the Serial Optical Mouse Part 2
Переглядів 1,1 тис.Рік тому
Serial Mouse Blaster: Quest for the Serial Optical Mouse Part 2
Quest for the Serial Optical Mouse: The search for milliamps (part 1)
Переглядів 1,6 тис.Рік тому
Quest for the Serial Optical Mouse: The search for milliamps (part 1)
ISA Blaster: DirtyRat Project (USB Mouse on a Pico-powered ISA card in DOS) (Part 2)
Переглядів 3,7 тис.Рік тому
ISA Blaster: DirtyRat Project (USB Mouse on a Pico-powered ISA card in DOS) (Part 2)
ISA Blaster: A software-defined ISA card based on a Raspberry Pi Pico (Part 1)
Переглядів 25 тис.Рік тому
ISA Blaster: A software-defined ISA card based on a Raspberry Pi Pico (Part 1)
486 Socket Blaster + 133MHz Am5x86 better than Intel Overdrive? (part 3)
Переглядів 4,2 тис.Рік тому
486 Socket Blaster 133MHz Am5x86 better than Intel Overdrive? (part 3)
USB Mouse to Serial port adapter (by CalamityLime)
Переглядів 2,6 тис.Рік тому
USB Mouse to Serial port adapter (by CalamityLime)
Swapping the BIOS of a SiS 530 Super Socket 7 Motherboard (Compaq Mustang-S)
Переглядів 3,6 тис.Рік тому
Swapping the BIOS of a SiS 530 Super Socket 7 Motherboard (Compaq Mustang-S)
Amazing K6-III+ Socket A Mod! (April Fool's Joke 2023)
Переглядів 1,7 тис.Рік тому
Amazing K6-III Socket A Mod! (April Fool's Joke 2023)
Maxing out a 430TX Socket 7 board @500MHz with a K6-2+ and a patched bios (DFI P5BTX/L part 2)
Переглядів 4,2 тис.Рік тому
Maxing out a 430TX Socket 7 board @500MHz with a K6-2 and a patched bios (DFI P5BTX/L part 2)
Repairing the voltage regulation circuit of a Socket 7 Motherboard: DFI P5BTX/L (part 1)
Переглядів 2,1 тис.Рік тому
Repairing the voltage regulation circuit of a Socket 7 Motherboard: DFI P5BTX/L (part 1)
Sound Blaster SB32 CT3930 Repair. OPL3 and AWE32 MIDI in one card!
Переглядів 4,2 тис.Рік тому
Sound Blaster SB32 CT3930 Repair. OPL3 and AWE32 MIDI in one card!
MHz Displays Tutorial: How to configure the 7-segment LED displays of vintage PCs
Переглядів 2 тис.Рік тому
MHz Displays Tutorial: How to configure the 7-segment LED displays of vintage PCs