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Hello everyone. This is the second time I've tried a ram upgrade on 2 different consoles and neither of them works. The first was a 1.4, soldering the chips was easy (used heating gun and kapton tape), it even worked partially with Xblast but then the trouble started, the box constantly freezes after it has been running for a few minutes.. The chips were from an dead 1.4 (clock capacitor death, ram was ok) So I removed all the chips, cleaned the pads (with a magnifying glass!) and there were no bridges or anything like that left, but the problem remained. The box keeps freezing after a while, no matter how often I re-solder over it. So I tried it on my 1.6 and soldered the first ram onto it (this time only with soldering iron 250°C), no heating gun) and hey, it worked for a short time and was also recognized in Xblast. Then suddenly exactly the same problem occurred, after a while the Xbox froze and sometimes showed image errors. Like this: So I took the additional ram off, cleaned everything (pins & pads), re-soldered the original ram but the problem still remained. I also removed the original ram, cleaned it again und resoldered it but nothing... I also re-soldered the components on the back site under the ram. Now i have 2 Xboxes with exactly the same issue. After a while it just freezes. Sometimes with image errors and sometimes just freeze. Sometimes after boot and sometimes after a while. I'm going crazy! Any ideas what causes this issue? It's strange that it's the same issue and it won't go away. Used Ram for the 1.6: K4D263238F-UC50 from AliExpress. It's no hdd issue (it's not connected) or something similar, i boot into the modchip menu where it also freeze. Modchip is also 100% ok. Maybe ram death? If so, why?

This thing keeps ejecting and will not even let me shut the console up. I have to unplug it. I'm worried about dead firmware. Possibility? The front panel traces are spotless.

So i tried to upgrade my 1.1 xbox to 128mb. I installed the first chip successfully and xblastOS flashed to TSOP said "Success". Then i attempted to install second chip on bottom side, but xbox started fragging. I fixed up some shorts i found, but it still fragged. Then i measured according to datasheet, that power to RAM is shorted to ground. The shorted pins most likely were: 66 and 65. However it's possible, that i used the chip pinout wrongly and i measured short between VDD and VDDQ, which should be fine. Even after fixing the shorts, it still fragged. After (destructively, but fortunately without ripping any trace) removing the both installed chips, it still does very weird frag. Basically the LED lights up only for short while and then turns off. Xbox's fan runs for a while and then it reboots. This gets repeated indefinitely, but rarely you get normal FRAG and xbox stays on. I measured 2.65V going to the VDDQ pin and the RAM power rail or any of the main power rails are NOT shorted now. ANyone knows if i can fix it? All my other xboxes are either fragging (i have 1.0 i got fragging, but it might be TSOP issue as there are no signs of tracerot, no leaking caps and apparently TSOP might naturally degrade now, so i ordered modchip and will try to install it) or they are 1.6, which suck IMAGES: https://imgur.com/a/z74Mzxe Here is reference image how i installed one of the chips, that worked well (the first one). I guess it was pretty good: https://imgur.com/a/6DlSKuY. The residue is either flux or denaturated ethanol i used to clean it up. VIDEO: