[SOLVED] help with motherboard capacitor

[alexis055]

hey guys please help me with my capacitor, cuz im going to buy a capacitor but i don't know it's mean. it is MIL 270/16 5EKA19
Please recommend me for what should i buy and how would i do after i install it ? thanks

 

[Newtonius]

Slow down buddy, you're missing a lot of information here. Like:

1. Why are you getting a capacitor for your motherboard? Did the original die or break somehow?
2. What motherboard are you trying to fix?
3. Do you have a soldering iron and the accompanying tools for it?

 

[rgd1101]

Slow down buddy, you're missing a lot of information here. Like:

1. Why are you getting a capacitor for your motherboard? Did the original die or break somehow?
2. What motherboard are you trying to fix?
3. Do you have a soldering iron and the accompanying tools for it?

that from the OP other thread

Question - capacitor b450m tuf gaming plus

I just found a broken capacitor in my case after hearing something rattling around in my case when toting it around. I'm not sure what to do about it, the computer seems to be running fine still. I've never soldered and don't know much about capacitors and the like. Should I have it fixed or...

forums.tomshardware.com

 

[Newtonius]

that from the OP other thread

Question - capacitor b450m tuf gaming plus

I just found a broken capacitor in my case after hearing something rattling around in my case when toting it around. I'm not sure what to do about it, the computer seems to be running fine still. I've never soldered and don't know much about capacitors and the like. Should I have it fixed or...

forums.tomshardware.com

Gotcha

 

[drea.drechsler]

hey guys please help me with my capacitor, cuz im going to buy a capacitor but i don't know it's mean. it is MIL 270/16 5EKA19
Please recommend me for what should i buy and how would i do after i install it ? thanks

Can you post some good pictures of the capacitor...good enough to show all the markings that are readable?

And are you positive you absolutely need this capacitor to make the motherboard at least basicly functional? have you tried using it?

You don't seem to be exactly skilled at this sort of thing (else you'd be able to identify values of the capacitor to replace it, for one thing). This may be a good learning experience but you have to keep in mind you can make it completely unuseable...and possibly something else like PSU and even CPU...if you make a big enough mistake.

Do you realize this is an electrolytic capacitor and what that can mean?

 

[alexis055]

Can you post some good pictures of the capacitor...good enough to show all the markings that are readable?

And are you positive you absolutely need this capacitor to make the motherboard at least basicly functional? have you tried using it?

You don't seem to be exactly skilled at this sort of thing (else you'd be able to identify values of the capacitor to replace it, for one thing). This may be a good learning experience but you have to keep in mind you can make it completely unuseable...and possibly something else like PSU and even CPU...if you make a big enough mistake.

Do you realize this is an electrolytic capacitor and what that can mean?

yes bro i'm so bad, And i don't have any friends nearby or relatives knows about pc so i'm trying to ask in any pc forums to try to help me, oh and the capacitor is from here first slot gpu

And from this now i'm still using my computer, working fine but sometimes happen like bootloop and blink monitor. 🙁 WELP

 

[alexis055]

Slow down buddy, you're missing a lot of information here. Like:

1. Why are you getting a capacitor for your motherboard? Did the original die or break somehow?
2. What motherboard are you trying to fix?
3. Do you have a soldering iron and the accompanying tools for it?

hey thanks buddy for your question. hmmm it's break and it's from the first gpu slot capacitor , i accidentally broke it when i put my gpu 🙁 and my computer are working fine now but sometimes happen bootloop and blink monitor. I have no really i dea..... i hope someone can help me.. ohh yah about that i ask already the phone technician here nearby to put it when i have my capacitor. And thanks mate

 

[jay32267]

I think that is most likely a 270uF 16VDC cap.
They are very common.
If you install a new one....make sure the polarity is correct.
There are different ways to do this.
If you had a picture of an undamaged unit...you might be able to see the orientation.
You can also look at the traces and figure it out but this takes some knowledge.
You can also use a meter to measure the voltage without the cap connected and figure it out but this also takes some knowledge.

 

[drea.drechsler]

yes bro i'm so bad, And i don't have any friends nearby or relatives knows about pc so i'm trying to ask in any pc forums to try to help me, oh and the capacitor is from here first slot gpu And from this now i'm still using my computer, working fine but sometimes happen like bootloop and blink monitor. 🙁 WELP

OK...you need to know this.

Electrolytics like that are commonly used to filter outputs of voltage regulators. Electrolytics are polarized...you have to get the positive lead onto the positive attachment. There are usually clues to help you, but you have to figure it out and I don't even trust myself. I use an ohm meter to make sure I'm getting it right. If you get the polarity wrong it can be catastrophic...i mean like blowing up in your face. Might not be the case here, but you need to know.

Even if it doesn't blow up it could short out the voltage it's filtering. Short that regulator and it could short the PSU; if the PSU lacks good short circuit protection you damage it and that can then propogate back to other components including CPU and GPU. Yes, doomsday worse case scenarios, but you need to know.

Seriously, I'd try to run the mobo without the cap and if it works OK just run with it. The bootloop and monitor blink could be anything, including memory compatibility issues.

 

[digitalgriffin]

OK...you need to know this.

Electrolytics like that are commonly used to filter outputs of voltage regulators. Electrolytics are polarized...you have to get the positive lead onto the positive attachment. There are usually clues to help you, but you have to figure it out and I don't even trust myself. I use an ohm meter to make sure I'm getting it right. If you get the polarity wrong it can be catastrophic...i mean like blowing up in your face. Might not be the case here, but you need to know.

Even if it doesn't blow up it could short out the voltage it's filtering. Short that regulator and it could short the PSU; if the PSU lacks good short circuit protection you damage it and that can then propogate back to other components including CPU and GPU. Yes, doomsday worse case scenarios, but you need to know.

Seriously, I'd try to run the mobo without the cap and if it works OK just run with it. The bootloop and monitor blink could be anything, including memory compatibility issues.

drea.drecchsler is quite correct. The clue is the solder pad. One is square one is round. That helps with polarity identification.

You'll need some solder flux, non acid core solder (silver bearing) and a fine point soldering iron. Practice a few times if you can on a scrap board. The capacitor is there to remove line noise and get rid of ripple. It helps promote stability.

 

[alexis055]

OK...you need to know this.

Electrolytics like that are commonly used to filter outputs of voltage regulators. Electrolytics are polarized...you have to get the positive lead onto the positive attachment. There are usually clues to help you, but you have to figure it out and I don't even trust myself. I use an ohm meter to make sure I'm getting it right. If you get the polarity wrong it can be catastrophic...i mean like blowing up in your face. Might not be the case here, but you need to know.

Even if it doesn't blow up it could short out the voltage it's filtering. Short that regulator and it could short the PSU; if the PSU lacks good short circuit protection you damage it and that can then propogate back to other components including CPU and GPU. Yes, doomsday worse case scenarios, but you need to know.

Seriously, I'd try to run the mobo without the cap and if it works OK just run with it. The bootloop and monitor blink could be anything, including memory compatibility issues.

thanks mate!! i'm so worried about this cap broken huhu so maybe the bootloop and monitor blink is from the other components? not from my broken cap? i thought it was the broken cap so i try to ask every forum about that. btw thanks you so much i appreciate it!!

 

[jay32267]

thanks mate!! i'm so worried about this cap broken huhu so maybe the bootloop and monitor blink is from the other components? not from my broken cap? i thought it was the broken cap so i try to ask every forum about that. btw thanks you so much i appreciate it!!

If you are confident you can replace the broken cap I would replace the broken cap and see if the problem goes away.

 

[drea.drechsler]

thanks mate!! i'm so worried about this cap broken huhu so maybe the bootloop and monitor blink is from the other components? not from my broken cap? i thought it was the broken cap so i try to ask every forum about that. btw thanks you so much i appreciate it!!

I can't say the problem is from other components with any confidence...but it's possible. I'm not really sure what the cap is for as it's hard to tell (maybe someone else has a good idea for that) so I couldn't say what symptoms it being missing might raise.

If you're desperate and would consider your motherboard a binner otherwise it makes the choice to replace it yourself a little easier. In which case: if you've never soldered it's not that hard. Check some youtube vids out, get a soldering iron, some electronics solder and flux (do NOT get plumber's solder or flux!) and practice on some copper wire. It's really pretty cheap. If you watch enough vids you'll get all the pointers like how to keep your soldering iron tip 'tinned' so it transfers heat well.

When installing the cap, pay attention to polarity. Get the new part and look for the markings and ask online if you aren't positive you know which is the positive lead.

Once it's soldered in you'll want to risk the least amount of hardware when you first turn on. So do not install the CPU, GPU or memory then power up the PSU. it will, of course, not boot up but at least you'll have an opportunity to see if you released any magic smoke with no chance of damaging them.

Only then add the other parts and go for it.