MB stopped working. Tried another power supply. Would bootup to bios intermittantly. Reinstalled original PS and same problems. When it would boot into bios, looking at MB Health, voltages were not very stable. Found this site and low and behold, the 6 1800uf and and 2 1500uf caps from OTC along side the CPU were bulged on top . I'm ordering: 6- 6.3v 1800uf; 2-16v 1500uf; 11-6.3v 1000uf and 6-10v 470uf caps. Will post back with results.
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Last edited by dsessions; 06-05-2008, 04:24 PM. -
Re: Msi 865gvm2-ls
Good luck! Which brand/model caps did you order? -
Re: Msi 865gvm2-ls
Thanks, This mb has already been replaced, was from a Security Camera DVR server. I just wanted to experiment with it. Ordered rubycon from Chris at badcaps.net.Comment
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Fixed
Replaced 6 1800uf 6.3v and 2 1500uf 16v caps. These were the only ones bulged. I checked the ones removed from the mb and not one was within tolerance. Some were shorted and some open and others were half what they should be. I did order enough to replace all caps on board. After removing one of the 1000uf 6.3v caps and testing it good, I only replaced that one. Board is running great.Comment
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I've found out that the all the Nichicon HM(M) caps on this board are faulty and need replacement. However, I didn't plan in advance and I don't have good replacement caps.
The original values are 2200uF, 6.3V, 5mm pitch. According to the datasheet, the rated impedance should be around 13-18 uOhms.
There are 8 of them, 3 to the left of the CPU socket and 5 on the bottom, very close to the northbridge. They are all connected, according to my multimeter.
I think I recall hearing that I don't have to use the same capacitance for in series...08-21-2023, 03:18 PM -
So the 16v 1500uF capacitor C9B1 near the power connector on the back of a Phat started leaking. Haven't been able to find the right cap, so I replaced it with a larger 25v 2200uF capacitor a couple weeks ago and everything is working fine since then. I didn't replace the other six 16v caps, they were all good.
When putting the fan plastic cover back I remember there were maybe 2-3 mm of clearance on top of it and 1-2 mm of clearance to the side of it.
For those that don't remember what the fan cover looks like I found this picture https://cdn.quade.co/wp-content/uploads/2... -
3COM OfficeConnect Gigabit Switch 16 (3C1671600)
The switch has served me for 10+ years (was new when I bought it). It's a nice switch with connections on the back which makes for quite a clean desk. Reason for taking it apart was that the cooling fan was noisy so I expected it to be dirty/dusty inside and the need to order a new fan. What I found was that it was very dirty/dusty and some electrolytic capacitors which needs attention. There are 3 capacitors which needs to be replaced but the ESR on some of the other ones might be bad as well so I think I'll replace them all. Original... -
Hi There,
The other week, I turned on my dell precision 450 to find 2 of 4 ram slots weren't working and cd & hard drives aren't being detected. When I opened the case, I instantly noticed a goldy/orangey powder/rust on top of a cap (wasn't there before). I scraped of this orange 'stuff' to find the cap was bulging (not flat). I have found replacement caps on the internet but if I can use the caps I at hand then i'd rather use them (quick).
Basically the bad cap is a Nichicon 1800uf 6.3v..
I have a spare motherboard with Nichicon 1500uf 16v caps.
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what would be safe upgrade for these caps in a motherboard, or simply use these ratings? 6.3 volts seems a bare minimum
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