ianoid #1 Posted May 24, 2020 I have a TI-99/4 yes 4 that starts up to this kind of messed up screen. Is it RAM or other chips? What should I replace first? 1 Quote Share this post Link to post Share on other sites
HOME AUTOMATION #2 Posted May 24, 2020 This happens to me, far too frequently, especially after I move the monitor from one location to another... Surprisingly, this is a quick fix... all you have to do is: Rotate the monitor, 90 degrees. 1 2 Quote Share this post Link to post Share on other sites
+Ksarul #3 Posted May 24, 2020 Most likely a RAM issue. 1 Quote Share this post Link to post Share on other sites
+arcadeshopper #4 Posted May 24, 2020 Ram see the pinned faqSent from my LM-G820 using Tapatalk 1 Quote Share this post Link to post Share on other sites
ianoid #5 Posted May 25, 2020 Lotta RAM swapping solved the problem although it didn't fit into any of the screen shots. Thanks and sorry for not FAQing the group. I was afraid it was something else that would be spotted by the wise eyes of the TI masters. Quote Share this post Link to post Share on other sites
+OLD CS1 #6 Posted May 25, 2020 Was the problem a single RAM chip or multiple? Quote Share this post Link to post Share on other sites
Sid1968 #7 Posted May 25, 2020 3 hours ago, OLD CS1 said: Was the problem a single RAM chip or multiple? Advice to find defective ram chips: If you want to find a defective RAM-Chip set a good 4116 in piggyback above each chip. If the error is gone you are at the defective one. But you should test if there are more ram chips defective. Watch out that you put the test-ramchip in the right direction on the others. Quote Share this post Link to post Share on other sites
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