I have a Dell gx280 and My mobo is fried all 9 of the caps between the cpu and the printer port are either leaking a yellowish powder or look like a frozen beer can. There are nichicon 1800uf 6.3v 8mm X 20mm 105 degrees and i have looked on digikey and I could not find anything near that diameter. So I found some on ebay and to no avail they are 13mm and will not fit without overcrouding each other. I guess I could rig them in there but i want to do this the correct way. So I have looked some more to no avail but a local electonis store has some 2200uf 6.3v 10mm X 20mm but are 85 degrees. Will these work or should I keep searching? the closest digikey had was a panasonic that was a 1800uf @ 6.3v but was 12mm this will not work. too big. what to do next???
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
check with the owner of badcaps.net to get caps. His screen name is Topcat on these forums. He should be able to get you what you need!Ludicrous gibs!
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
What you need are Low or ultra low esr caps. Those caps are availiable from different sources. Add the location to your profile and we will tell you.Comment
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
mouser has them, but only in bulk quantities! they have 2200uf 6.3v radial caps in 10mm, but not 8mm.Ludicrous gibs!
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
The 85C caps are probably GP caps, and you need low impedance types, which will be rated for 105C.So I have looked some more to no avail but a local electonis store has some 2200uf 6.3v 10mm X 20mm but are 85 degrees. Will these work or should I keep searching?PeteS in CA
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
It is safe to sub 2200uF 16v caps in place of those 1800uF caps, I do it all the time with the ones behind the heatsink. They must be low ESR, and 16v though. There's 12v on their positions, so it wouldn't be wise to decrease the voltage... lol The 8mm 1800uF 6.3 volters, I'd sub those with 1500uF caps, as those are easy to obtain in 8mm cans. Stuffing 10mm cans in those spots would be nearly impossible.<--- Badcaps.net Founder
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
thanks for the info....I will look around...oh yeah by the way..the originals are 6.3v....can I still use the 16v??....I would think not but you guys are the pros.Comment
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Re: Can I replace a 1800uf with a 2200uf 6.3v?
If the originals are 6.3 volt then yes you can use 10v or 16v, but they will have larger dimensions and there is really not much meaning with it
But on the other hand it does not do anything bad to go up in voltage... Never go down in voltage though..."The one who says it cannot be done should never interrupt the one who is doing it."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 -
When I tried to repair LG 29 inch CRT TV, I found that the ESR value of samyoung SMS capacitor(160v 2.2uf), which is very close to D1879 transistor, is 6 ohm.
Judging from above ESR Meter Table,I think It is necessary to replace this sms capacitor.So I visited local electronics shop,and I purchased 160v 2.2uf rubycon YK capacitor.
But when I browse through rubycon YK datasheet,I found that there is no ripple current rating for 160v 2.2uf specification. But On the contrary, I found 39 mA ripple current rating for 160v 2.2uf SMS capacitor.
Rubycon YK DataSheet (b... -
I've just been repairing some (very) old speakers with a loud hum that occurred as soon as you powered them on regardless if any actual audio is played through them. I work in a School so it's 99% likey that the Teachers have hardly ever turned the power off on them for well over 10+ years.
As you can see the top large capacitor on the right has a bulge on the top so defincately needs replacing. As the one next to it is exactly the same capacity and voltage I planned to replace them both.
What is your advice/opinion on whether or not on old(er)... -
So a couple of days ago I picked up a 2009 8-core Mac Pro in "as seen" condition at a price that was too good to pass up, got it home, eventually managed to install OS X on it, and then it died while downloading updates. This machine looks like it was used for heavy video editing work as it still had a Blackmagic capture card and two GPU's installed, but I expect we'll see a lot more of these 2009 Mac Pro PSU's failing soon.
After it died, the machine made some clicking noises, like it was trying to fire a relay but something wasn't working right, so it kept randomly clicking... -
I have purchased an 100-240v AC/5v 2a DC adaptor from aliexpress,and a month ago It smelled burning when I plugin it powerstrip.
Since then, This AC/DC adaptor have been out of order.
But A few days ago,I replace 0.5 watt resistor with 1 watt resistor(1ohm) in this adapter.
After replacing resistor,It succeed to recharge all of android phone.And When I measure voltage on the two pins of USB port,It shows 5.5v
Is it okay to replace 1/2 watt resistor with 1 watt resistor in AC/DC adapter?
And Is there any possibility that it will suddenly explode as well as to be out...
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