Yeah, guess it's best to do the whole job... this is the board img-9133front-6645fb375eb63958085697.jpg (3105×3015)
The filling of those positions vary on other versions, with 9 of the short 680 4J instead of 6 and the 3 black ones, so I guess they are all post VRM, while the other 4 are pre-VRM. Don't have as many suppliers in the UK, the big ones seem to be mostly bulk / high minimum order.
Aliexpress would probably be a bad idea?? I mean, I like the prices but are they going to be what it says they are.
I suppose I ought to do the RAM VRM ones at the other edge, not sure which is the AGP VRM - maybe it's linear
-
If you're replacing those caps, you should also replace the VRM caps as they are what makes sure that the CPU gets good voltage and has enough current to function properly (see circle in uploaded picture for location of caps recommended to replace, your board might be a little different, but you get the idea). I would order all of the capacitors in one go just in case and only solder in the ones needed, but that's your choice. Let me know the brand and model of the caps if you want recommendations, otherwise, you can always look through the Datasheet Depot and try to find replacements yourself.
Leave a comment:
-
Which caps to replace: ECS P4M800Pro-M V1.0A
It's feeling like this board has a case of badcaps, instability and reboots - and not wanting to necro a a very old thread, it seems the 680uF 4V are highly suspect.
I don't really want to blanket recap everything, but maybe the others around that area could do with being changed?
Equipment: I have a temperature controlled soldering station, read the bit where it says set to 400F, don't think I would have gone that high without reading that.
Spring plunger solder sucker, and some desolder braid... and a bit of good old leaded 60/40.
PS. Additional diagnostic, after setting speedstep to minimum and turning off C1E, it did get into Memtest, where I'd never succeeded before, making me pretty sure that unstable power delivery is the problem
-
I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.
For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).
https://www.badcaps.net/filedata/fetch?id=3591771
https://www.badcaps.net/filedata/fetch?id=3591772
It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:
https://www.badcaps.net/filedata/fetch?id=359177... -
Hello!
I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.
The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.
I have studied the board and... -
Hello everyone I have a question. I have a laptop and his schematic. Can anyone tell me how to measure or any way to understand specific of caps so i can buy new one?
Also in case how can I understand if some caps of some dead Mobo i have, are ok to be replaced in my new motherboard which im trying to fix?
Thank you! -
Hi everyone,
There actually was a time when early SMPS and late bakelite housed electrolytic caps coexisted in high end industrial gear. A friend of mine just got himself a CNC milling machine form that time with its first set of now 41 year old caps still installed in the PSU... and it's malfunctioning.
Two of the caps have already leaked slightly onto the board. I have not desoldered or measured any so far but they should qualify for replacement.
Now I'm wondering what to put in there as a replacement. First idea was state of the art low-ESR Nippon KY,... -
I have an old Tivo. The Power Supplies are known to have caps that fail. Here are the caps that come with the original power supply:
I could not find replacement caps with the exact same specs. I followed an online guide and recapped the power supply with caps with these specs
The power supply now works, however the HDMI video is giving me eye strain. I don't know how a capacitor on a Power supply could impact an HDMI video signal, but it does, the Tivo interface has a flicker now and the color/brightness is off. So I want to get some new caps...
Leave a comment: