Need help identifying/replacing component

[Shermet]

Hey guys

I have a cap which I accidentally broke while doing some work on the mobo.

Pic included;
It reads

6Z4
101
16V

Basically looking for a replacement.

Cheers

[mariushm]

Re: Need help identifying/replacing component

100 uf 16v FPCAP (functional polymer)

I don't know from which series it belongs exactly, it might be Nichicon R7:



It's a hybrid between electrolytic capacitors and polymer capacitors so you can replace it with or polymer capacitors or in the worst case, high end electrolytic capacitors rated for higher voltage (to make up for the disadvantages of electrolytic capacitors).

The Badcaps store doesn't have 100uF polymers listed, digikey.com would probably charge you 20$ or something like that to buy one... but it has one good for you in stock:

http://www.digikey.com/product-detai...716-ND/2207252

Sweden... I guess Farnell is maybe a good choice or rs-online but I can't see any polymer ones on them.

You might be able to use one of the high end electrolytic ones with a high voltage rating like 50v or 63v rating, such as the Panasonic FR:

http://uk.farnell.com/panasonic/eeuf...5mm/dp/2079296

ESR wise they'd be fine but from a ripple point of view, these electrolytic ones are still below the polymer capacitors

[Shermet]

Re: Need help identifying/replacing component

Thanks for the reply. I had a hobbyist repairman look at it yesterday before your reply and he put in an electronic comp from a TV that was rated to 16V.

I was just wondering because I currently have lots of problems.

I have a c2q processor: Q6600 step (g0) which is rated to have a base of 2.4GHZ yet OCCT shows 1.6 (underclocked by 33%). When I start a test I get an error in less than 10 seconds. I'm guessing the underclocking is due to low voltage to the cpu?

Also the cpu fan wouldn't run unless i removed all IDE connections. Before I ran OCCT I just figured this might have been due to the PSU, but this has never been an issue before. (When I've used an E6600)

Could this be caused by the "weaker" rated 16V component or is something else wrong? :/

[selldoor]

Re: Need help identifying/replacing component

We will need to know exactly what the replacement is otherwise it will be total guesswork.

[ratdude747]

Re: Need help identifying/replacing component

Moved out of FAQ.

[mariushm]

Re: Need help identifying/replacing component

Thanks for the reply. I had a hobbyist repairman look at it yesterday before your reply and he put in an electronic comp from a TV that was rated to 16V.

I was just wondering because I currently have lots of problems.

[..]
Could this be caused by the "weaker" rated 16V component or is something else wrong? :/

It's quite possible the capacitor is not good enough, but we can't tell that for sure unless we know exactly where it was on the board.
Some circuits on the board require very high end capacitors, it matters what you put there... in other places the type of capacitor doesn't matter that much.

Search for a picture of your board online and draw a circle around the capacitor that fell down and post it here. Click on "Go advanced" or something like that below the message box and you'll have an option to attach images to your post (they have to be maximum 2000 by 2000 and at most 1 MB if I remember correctly)

Also tell us everything that's said on the capacitor that guy/girl installed.

I have a c2q processor: Q6600 step (g0) which is rated to have a base of 2.4GHZ yet OCCT shows 1.6 (underclocked by 33%). When I start a test I get an error in less than 10 seconds. I'm guessing the underclocking is due to low voltage to the cpu?

Some motherboards automatically downclock the cpu to a lower frequency if you do nothing with the computer, or not all cores are in use. 1.6 Ghz is the normal frequency the processor will run at when such feature decides to downclock it, so to me it doesn't look like a problem, it's rather a feature.
I think you can disable this in BIOS by turning off "cool and quiet" or stuff related to keeping the system silent or related to saving power.

The errors are however an issue - could be related to this replaced capacitor but I'm leaning more towards you having a cooling problem. Maybe your cpu fan doesn't spin right, or the thermal paste is very old, or your heatsink is loose?

If the capacitor was near the chipset or the memory, it might cause stability problems.

IDE sockets are connected to the chipset so again, if that capacitor was for something in the chipset, it might explain why you have issues. But when I read that the cpu fan wouldn't spin until you remove all cables, it makes me think that maybe one of the cable was damaged, with a couple of pins or wires shorted out. Check the cables carefully.


So get back to us with pictures of the board, location of capacitor and what it says on the current capacitor.

[Shermet]

Re: Need help identifying/replacing component

I can provide pictures and tell you the values but I don't really understand what more you'd want :/

It's rated for 100uF and 25V

Sorry for my ignorance but why would it matter (the exact component) if you know the values for the component?

[Shermet]

Re: Need help identifying/replacing component

It's quite possible the capacitor is not good enough, but we can't tell that for sure unless we know exactly where it was on the board.
Some circuits on the board require very high end capacitors, it matters what you put there... in other places the type of capacitor doesn't matter that much.

Search for a picture of your board online and draw a circle around the capacitor that fell down and post it here. Click on "Go advanced" or something like that below the message box and you'll have an option to attach images to your post (they have to be maximum 2000 by 2000 and at most 1 MB if I remember correctly)

Also tell us everything that's said on the capacitor that guy/girl installed.



Some motherboards automatically downclock the cpu to a lower frequency if you do nothing with the computer, or not all cores are in use. 1.6 Ghz is the normal frequency the processor will run at when such feature decides to downclock it, so to me it doesn't look like a problem, it's rather a feature.
I think you can disable this in BIOS by turning off "cool and quiet" or stuff related to keeping the system silent or related to saving power.

The errors are however an issue - could be related to this replaced capacitor but I'm leaning more towards you having a cooling problem. Maybe your cpu fan doesn't spin right, or the thermal paste is very old, or your heatsink is loose?

If the capacitor was near the chipset or the memory, it might cause stability problems.

IDE sockets are connected to the chipset so again, if that capacitor was for something in the chipset, it might explain why you have issues. But when I read that the cpu fan wouldn't spin until you remove all cables, it makes me think that maybe one of the cable was damaged, with a couple of pins or wires shorted out. Check the cables carefully.


So get back to us with pictures of the board, location of capacitor and what it says on the current capacitor.

Sorry saw your reply after my post.

My mobo is a GIGABYTE GA 965G-DS3
The replaced capacitor is located just "below" the DDRII2 port, where the text can be found on this schematic picture.

I actually replaced the old CPU cooler for a new one, brand new thermal paste and the cores are cool running at 37-45 degrees.

The fan works properly. If I remove the ATX 12v (4 pin) and just run on ATX the screen wont start etc but the fan will run at full speed.

IMO even though the IDE devices are unplugged the fan is rather "slow"

[mariushm]

Re: Need help identifying/replacing component

Are you sure that's where the capacitor fell from?

I see on other pictures on Google that the location you show is unused :
http://pclab.pl/zdjecia/artykuly/khe...65g-ds3_4b.jpg
http://img267.*************/img267/6...otherboard.jpg

Their "sister" board 965p-s3 also has that location without a capacitor:
http://obrazki.elektroda.net/69_1216318432.jpg

If you remove the ATX 12v (4pin), the cpu won't receive any power so yeah, that's normal. The fans get their 12v power from the large connector.

It's normal to have a slow rotation on fans if the cpu is not hot... the fan will adjust its speed depending on hot the CPU is (all fans with 4 wires will do that if the BIOS has this feature and you plug the fan on a proper 4 pin connector on the board)

I don't think there's any relation between the fan speed and the ide, you're just not accustomed to different fans and coolers.
Your older cooler probably kept the cpu constantly warmer, so the fan never had a chance to spin less, or maybe the old fan was not designed to spin at lower speeds.

As you start a game you should see the fan spin faster as the cpu warms up

[Shermet]

Re: Need help identifying/replacing component

I'm certain as it was still there, it was loose after I "nicked" it so I suspected it was the problem. I unsoldered it and it came off with one leg still stuck to the board. (Broken)

If you see the attached pictures in the reply "I can provide pictures and tell you the values but I don't really understand what more you'..." you can see where the replacement is located.

This corresponds to the DDRII2 (between it and the GPU socket).

I found a picture, attaching:

The thing is even when I ran the OCTT the fan didn't speed up. My experience with my old intel stock fan was that it started spinning at full speed from get go, yet this one keeps lumbering at it's own "slow" pace.

I'm not sure, you're probably correct.

Theoretically should a 100uf 16V electrolytic comp work? :/

Oh and thanks for all the answers so far, I realize I've been incredibly rude not to thank you for your input. :P

[mariushm]

Re: Need help identifying/replacing component

Not a problem.

I don't know what to tell you further. You didn't tell us what's written on that capacitor that was used by your friend. There are series and series of capacitors, some are more general purpose, some are higher quality, for motherboards and power supplies.

A capacitor with a 16v rating would normally be used like a "storage area" or a "buffer" of energy for chips that convert the power from 12v of the power supply to lower voltages used by other components.

The power supply of your computer should already provide a clean enough "stream" of current to these chips so the parameters of these 16v "input buffer" capacitors shouldn't be so important, but I really can't be sure.

Based on the location of the capacitor, I don't think it's related to the memory slots (these have the converters on the top right corner as far as I can tell)... I think it has something to do with the chipset that's a bit below it on the board, if you can check the picture you last posted.

Not sure I can help you further, maybe some folks here have worked on this motherboard and can give you better advice.

[Shermet]

Re: Need help identifying/replacing component

The capacitor is in a rather hard to reach spot so I just removed the MOBO from the case, sorry about that. I just couldn't understand the significance;

Anyway these are the markings on the component:

036C0

SK 85°C

Jamicon

Anyway thanks I suppose, since I have nothing else to go on I'll try looking for a better cap :/

[mariushm]

Re: Need help identifying/replacing component

Yeah, Jamicon as a brand ( and the series SK but its irrelevant) are OK capacitors, just not for computers

Search for Panasonic FM, FR, Nichicon HM, HN, Rubycon ZLH ZLJ etc... with as high voltage rating as the diameter of the capacitor will allow you (it needs to fit in that place).