A brand new XT RAM test ROM and an update on some unfixable parts

I recently had a number of videos where I struggle to understand why my XT clone motherboard had fata RAM issues that prevented it from working. I tried to fix it but got no where. The same thing happened with an AST RAM card, where it also had random issues that I couldn't sold. So with my friend David, we created a new IBM PC diagnostic ROM that runs a very comprehensive RAM test to help fix these two broken parts, but they just work now! What the ........ -- Links IBM PC RAM diagnostic ROM: https://github.com/ki3v/xtramtest Motherboard RAM issues videos:    • I just can't escape computers with RAM pro...      • I might have to give up on the "RAM issues...   AST RAM card repair (attempt):    • I got stuck trying to fix this 40 year old...   XT Motherboard repair video: Part 1 -    • This motherboard has issues. Let's try to ...   Part 2 -    • Update: The motherboard from the last vide...   Book8088 Repair video:    • 0078 A broken Book 8088 laptop, Voodoo 2 f...   (unboxing)    • Finding an intermittent fault on the Book8...   (repair) IBM CGA card repair video:    • Can we save this heavily corroded IBM CGA ...      • Hacking an IBM CGA card for fun and speed!   All about March RAM testing: https://www.researchgate.net/publicat... https://www.ijvdcs.org/uploads/524361... Rudd's Diagnostics: https://minuszerodegrees.net/ruuds_di... https://forum.vcfed.org/index.php?thr... 41256 DRAM datasheet: https://docs.rs-online.com/fdaa/09007... Adrian's Digital Basement Merch store: https://my-store-c82bd2-2.creator-spr... Adrian's Digital Basement ][ (Second Channel)    / @adriansdigitalbasement2   Support the channel on Patreon:   / adriansdigitalbasement   My GitHub repository: https://github.com/misterblack1?tab=r... -- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.16... O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digi... Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000... TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MI... EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DS... Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-... Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-... RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (order five) https://www.ebay.com/itm/1-2-5-10PCS-... Heat Sinks: https://www.aliexpress.com/item/32537... Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Instructional videos My video on damage-free chip removal:    • How to remove chips without damaging the c...   --- Music Intro music and other tracks by: Nathan Divino @itsnathandivino