I have to recap a sis730 462 motherboard it has 10 2200uf x 6.3 volt from origin. The problem is that i have 5 new 2200 x 6.3volt caps and 5 new 2200 x 10volt.Can i recap using these despite their difference in voltage value.It is safe?Thanks in advance
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Re: Mix Voltage capacitor value
Voltages on a motherboard are 12v 5v and 3.3v.
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6.3v and 10v caps are interchangeable so far as the voltage.
BUT. Volts and uF is only part of the story.
It is WAY WAY important to check the ripple and ESR ratings of replacement caps to those of the original caps.
What are the make/series of the old caps (and new).
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Re: Mix Voltage capacitor value
The 6.3v -10v interchangeability only applies to motherboards.
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An add-in card or a PSU may have (say) 9v in there for some odd reason.
In that case check the voltage the cap is on with a meter. (Both load and no-load.)Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: Mix Voltage capacitor value
Old/original caps are LUXON.The new ones are JACKON (i think they are not the best)but they are the only option i have.Originally posted by PCBONEZComment
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Re: Mix Voltage capacitor value
Well,
If you have no choice but to use those then I guess specs aren't worth checking.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: Mix Voltage capacitor value
The problem is that if 6.3V and 10V caps are connected in parallel in the same circuit there will be unequal ripple current sharing. Typically 10V caps have lower ESR. So if the caps happen to be connected in two groups keep the 10V ones together, likewise the 6.3V. ie match parrallel caps.Gigabyte EP45-DS3L Ultra Reliable (Power saver)
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Title:
Capacitor detached from PCB – RTX 2070 Super Founders Edition
Description:
During maintenance on an RTX 2070 SUPER Founders Edition, I found a capacitor lying on my desk after reassembly.
I did not notice it detaching, so I am unsure of its original location on the PCB.
Procedure performed:
- Removed backplate
- Cleaned heatsink and PCB with isopropyl alcohol + soft ESD brush
- Reapplied thermal compound
- Reassembled card
Observed behavior after reassembly:
- GPU powers on and operates normally under... -
I have an 21 inch CRT TV which is not able to power on.
I disassembled 21 inch CRT TV and measured voltage of main filter capacitor(Samhwa HC 400WV 220uF) in the circuit.
It shows 270V on my DMM.
So I discharged this main filter capactior completely and detached circuit board from cathode-ray tube.
Then I desoldered this main filter capacitor from circuit board.
But I noticed that this desoldered large capacitor(Samhwa HC 400WV 220uF) is slowly charged by itself until it reached 0.6V
I measured its ESR value with MESR-100 and it shows 0.1 ohm,judging... -
(TL;DR skip the first paragraph)
I encountered my first dead motor run capacitor at a customer this week.
For some fields I guess it is a very common occurrence but the usual way for industrial machines here is to use 3-phase motors.
(Unless a servo motor makes more sense that is).
But for some reason this 3-phase machine uses a 1-phase motor for its liquid coolant pump.
The pump would run but sometimes trip the 10A breaker.
I monitored it starting and stopping for over an hour until it finally stopped in a specific spot between its windings:
Then it could... -
Hi people, I hope this is the correct spot to post this, I'm new to the forum.
I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.
I hope these photos make it clear which component I am referring to:
(yes, the soldering is a bit botched from removing the blown one, I know)
I have found the board schematic (attached), but there does not seem to be a boardview available. I have never... -
what is the easiest way to measure the capacitance of SMD ceramic capacitors and its rated voltage?...09-12-2024, 01:04 AM
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