11-16-2017 06:36 PM - last edited 3 weeks ago by ROGBot
11-16-2017 09:18 PM
11-16-2017 09:23 PM
11-17-2017 03:21 AM
11-17-2017 03:29 AM
Korth wrote:
It's an SOD-323 package. It's a diode, probably a small signal schottky diode.
Part markings look like "R30E O17 CD3" - I'm not sure exactly what that means or who made it, but I'm guessing something like this.
What is that pinkish-purplish stuff on the package? It looks like an internal TIM which has leaked/seeped out (and ASUS used generic pink TIM goop in past years), but diodes and packages of this sort aren't built with thermally mated surfaces so they wouldn't use (and wouldn't even benefit from) TIMs. Perhaps it's some sort of discolouration of the plastics or unburnt solder flux.
The best "repair" you could perform - especially if you want to resell the mobo - is to clean it up. Get that coating of dust and lint and packed crud off all the parts.
I recommend giving the mobo a blast of compressed air. Then carefully cleaning/wiping everything with lint-free cloths and Q-tips and electrical grade (>99%) isopropyl alcohol. (Don't use ~70% drugstore stuff because it contains perfumes and additives which can leave conductive residues and cause problems.)
A competent electronics repair shop could run the board through a cleaning machine, and inspect/repair failed parts. But not for cheap.
It would be easier to identify that part and assess the apparent "damage" to it after it's cleaned up.
11-17-2017 03:37 AM
11-17-2017 03:48 AM
11-17-2017 03:56 AM
Korth wrote:
lol woops that makes sense. Looked like a schottky to me, haha.
So I'm guessing this is an output stage of a VRM circuit? I don't have an R3G mobo to reference.
The real question, given the condition of this part, is how likely the mobo is to fail.
11-17-2017 04:21 AM
11-17-2017 03:52 PM
liquidfluidity wrote:
Sorry for starting it out in the wrong area.....doh