YouTube video by RavenWolf Retro Tech

Acorn Electron Diagnostic ROM. Contribute to moogway82/ElkWSS-DiagROM development by creating an account on GitHub.

RPROM Kickstart Switcher gives Amiga 500, 600, and 2000 owners seven ROM slots with USB or Amiga-side flashing.

DiagROM 2 Stable is now live, bringing a finished V2 release with bug fixes, NTSC work, GitHub downloads, and C-based code.

DiagROM V2 GitHub release puts John "Chucky" Hertell’s Amiga diagnostic tool online for reference and long term continuity.

Underwater Amiga 2000 returns in Part 2 as Chris Edwards battles rot, bad chips, and stubborn video lines in a gritty rescue.

Amiga 3000 resurrection: RETRO is the new black shares a wild repair saga, from a wrong cable to a real Workbench boot.

Commodore Ranger Monitor joins an Amiga 3000 rebuild, plus BlueSCSI swap, rare screws, and CRT rehab. Watch the video.

Amiga 4000T Build starts here with daughterboards, cabling, power rules, DiagROM checks, and SCSI tips from Chucky Hertell.

Amiga 3000 Revival starts as GadgetUK fixes key chips, replaces the RGB hybrid, and gets DiagROM booting on an A3000.

Chris Edwards tackles an epic Amiga 4000 repair, battling blown traces, CIA failure, and Buster chip woes. Watch the repair come to life!

Neil wraps up his Amiga 500 build with custom RAM, a TF536 accelerator, and a keyboard restore—but hits a boot issue. Watch to help!

Learn how DiagROM helps diagnose and repair a failing Amiga 500, even when standard tools won’t run. A step-by-step breakdown of using serial diagnostics to pinpoint RAM failures.

DiagROM ist eine Diagnose-Software, die vom Anwender in ein EPROM gebrannt wird und dann das reguläre Kickstart-ROM eines Amigas ersetzt. Jetzt ist eine neue Betaversion 2.0 erschienen. Änderungen: Started to actually handle a new RTC test. It WILL show wrong dates etc etc. please report different behaviour on different machines, also fixed keyboardhandling. now it should be way more responsive. Using a new way to build the EPROM files. please report any issues. OLD CIA test will not work on 68000 and will soon be removed anyway so skipped! Changed crashscreen to show build date, also show part of stack to help trace reason of crash. Added AGA Testscreens Changed so first word is $1114 again! even if this technically is not needed but there are CPU cards with flashable kickstarts that apparently REQUIRE it to be that exact value or it told it was not a legal Kickstart ROM. Fixed a rouge IRQ on 68000 machines on new CIA Tests. Added a note of old CIA/IRQ tests that they will soon be removed. Added 2 testpictures. this is generated not a still picture. it is slow on older machines. might speed things up. As it actually now always generates the picture in 640 x 512 pixels resolution and scaled down. To be changed later, but should be able to test things like A3000 Scandoubler etc now. (nba) [Meldung: 20. Jan. 2026, 10:29] [Kommentare: 0] [Per E-Mail versenden] [Druck-Version] [ASCII-Version]

DiagROM is diagnostic software that is burned into an EPROM by the user and then replaces the regular Kickstart ROM of an Amiga. A new beta version 2.0 has now been released. Changes: Started to actually handle a new RTC test. It WILL show wrong dates etc etc. please report different behaviour on different machines, also fixed keyboardhandling. now it should be way more responsive. Using a new way to build the EPROM files. please report any issues. OLD CIA test will not work on 68000 and will soon be removed anyway so skipped! Changed crashscreen to show build date, also show part of stack to help trace reason of crash. Added AGA Testscreens Changed so first word is $1114 again! even if this technically is not needed but there are CPU cards with flashable kickstarts that apparently REQUIRE it to be that exact value or it told it was not a legal Kickstart ROM. Fixed a rouge IRQ on 68000 machines on new CIA Tests. Added a note of old CIA/IRQ tests that they will soon be removed. Added 2 testpictures. this is generated not a still picture. it is slow on older machines. might speed things up. As it actually now always generates the picture in 640 x 512 pixels resolution and scaled down. To be changed later, but should be able to test things like A3000 Scandoubler etc now. (nba) [News message: 20. Jan. 2026, 10:29] [Comments: 0] [Send via e-mail] [Print version] [ASCII version]

DiagROM ist eine Diagnose-Software, die vom Anwender in ein EPROM gebrannt wird und dann das reguläre Kickstart-ROM eines Amigas ersetzt. Nach der Alphaversion 2.0 ist nun die Betaversion 2.0 verfügbar. Änderungen: 2025-08-30: Improved NTSC Support. Now should print statusline and keep text within NSTC borders during NTSC mode. New RTC Test function. We now have TWO highly experimental RTC tests. the old one will soon be removed. Added a experimental way of timing time between seconds in RTC. not sure if useful yet :) requires working CIA. Some changes in CIA test routine. working on finding a way to detect the TOD bug. do NOT rely on that at the moment. more cleaning up in source. planning to open up the source in time (VIEWING only!) hopefully quite soon Decided to go to BETA stage. There are most likly still small bugs in this convertingstage! as always PLEASE report! 2025-08-05: More changes to the new CIA test. First fixed my small "oopsie" of naming ODD/EVEN CIAs incorrect. fixed now. Added test for the TOD (Time of Day) ALARM Function. This requires INT2/6 to work aswell (from CIA) Also added support for 60Hz screenmode in the test so now machines that are not able to switch to PAL will show if a CIA is OK IF You have a NTSC machine reporting CIAs as not ok even if they are, please send me a screenshot. old CIA test will soon be removed when this test shown reliable!. more improvements will come soon. 2025-07-05: ok sorry for being messy! Changed back baudrate to 9600 is I felt menus etc more unresponsive on slower machines. what do you think? Send me a report if you want me to go back to 19200. Added a new CIA test that I am still working on will be way more in depth now. can find if a CIA cannot trigger IRQs. something several youtubers have found missing but NOT REPORTING IT!. to those I would like to send you a VERY VERY deep THANK YOU for NOT REPORTING!. as why would you? That would make me find out things and improve the software. right? anyway enough nagging! also more internally swapped out VBCC to GCC as C Compiler as VBCC simply did not cut it. 2025-03-19: Fixed bug that if there was no ram at beginning it did not scan for more ram. not finding working ram later in block if there was any. Fixed bug that if there was no ram at all it actually halts system and try to show biterrors on screen with rastertricks (dr) [Meldung: 15. Sep. 2025, 06:10] [Kommentare: 0] [Per E-Mail versenden] [Druck-Version] [ASCII-Version]

DiagROM is a diagnostic software that is burned into an EPROM by the user and then replaces the regular Kickstart ROM of an Amiga. After alpha version 2.0, now beta version 2.0 is available. Changes: 2025-08-30: Improved NTSC Support. Now should print statusline and keep text within NSTC borders during NTSC mode. New RTC Test function. We now have TWO highly experimental RTC tests. the old one will soon be removed. Added a experimental way of timing time between seconds in RTC. not sure if useful yet :) requires working CIA. Some changes in CIA test routine. working on finding a way to detect the TOD bug. do NOT rely on that at the moment. more cleaning up in source. planning to open up the source in time (VIEWING only!) hopefully quite soon Decided to go to BETA stage. There are most likly still small bugs in this convertingstage! as always PLEASE report! 2025-08-05: More changes to the new CIA test. First fixed my small "oopsie" of naming ODD/EVEN CIAs incorrect. fixed now. Added test for the TOD (Time of Day) ALARM Function. This requires INT2/6 to work aswell (from CIA) Also added support for 60Hz screenmode in the test so now machines that are not able to switch to PAL will show if a CIA is OK IF You have a NTSC machine reporting CIAs as not ok even if they are, please send me a screenshot. old CIA test will soon be removed when this test shown reliable!. more improvements will come soon. 2025-07-05: ok sorry for being messy! Changed back baudrate to 9600 is I felt menus etc more unresponsive on slower machines. what do you think? Send me a report if you want me to go back to 19200. Added a new CIA test that I am still working on will be way more in depth now. can find if a CIA cannot trigger IRQs. something several youtubers have found missing but NOT REPORTING IT!. to those I would like to send you a VERY VERY deep THANK YOU for NOT REPORTING!. as why would you? That would make me find out things and improve the software. right? anyway enough nagging! also more internally swapped out VBCC to GCC as C Compiler as VBCC simply did not cut it. 2025-03-19: Fixed bug that if there was no ram at beginning it did not scan for more ram. not finding working ram later in block if there was any. Fixed bug that if there was no ram at all it actually halts system and try to show biterrors on screen with rastertricks (dr) [News message: 15. Sep. 2025, 06:10] [Comments: 0] [Send via e-mail] [Print version] [ASCII version]