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Currently Playing: RAM expansion card repair & new Dallas mod! DS1213 and DS1287. IBM PS/2 Model 80

This video covers an IBM PS/2 Model 80 RAM expansion card repair and a new Dallas RTC mod for the DS1287 and DS1213. I troubleshoot and repair the vintage memory card, then test a modern solution for replacing failed Dallas real-time clock chips. Ideal for fans of vintage computers, retro IBM PS/2 systems, old-school PC hardware, Dallas RTC mod, memory expansion, electronics repair, classic MCA machines, and hands-on retro computing restoration projects. - Support me on patreon.com/Epictronics Buy me a coffee: https://ko-fi.com/epictronics - Model 80 Motherboard repair here: https://youtu.be/uNz7KFGOVJE?si=1gbK9WFKU0mBKeag Model 80 Playlist here: https://www.youtube.com/playlist?list=PLLN54H2azbhTIVIrmk4YnU18tHCEXVD0W - Tools I regularly use FNIRSI DWS-200 Solder station PinePower Bench PSU AMTECH NC-559-ASM Flux Kester 951 Flux pen Hanstar 861DW Rework Station Pro'sKit SS-331 Desoldering Station SEQURE HT140 Desoldering Tweezers Multicore 60/40. 0.38mm solder AOYUE int883 PCB Preheater RIGOL DHO800 70MHz four-channel digital Oscilloscope Tektronix 2246A 100 MHz four-channel analog Oscilloscope FNIRSI DPOX180H 180MHz Handheld Oscilloscope UNI-T UT61E Auto Ranging Multimeter UNI-T UT890D Manual Ranging Multimeter FNIRSI LC1020E LCR/ESR meter TL866 II Plus Programmer InfiRay P2 Pro Thermal Camera TOMLOV TM4K-AF Flex Microscope Dremel 3000 with flexible shaft MaAnt Mini"Dremel" DeoxIT D5 Contact Cleaner PCBs from PCBWay.com - Support me on patreon.com/Epictronics Buy me a coffee: https://ko-fi.com/epictronics Join me on Twitter: https://twitter.com/epictronics1 - Music by Karl Casey @ White Bat Audio