GuYS... I hAd a AcBel 380W PSU ....the problem is cannot turn while plugged onto Mobo....when outsite (just using jumping wire from green to black) can turn on....mobo is okay ..tested other PSU....=_= is it caps problem or else ?? i checked with multitester power voltage right to the point.... =_=
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Re: AcBel PSU weird problem... =_=
It is probably a capacity insufficiency on one of the rails, not a cap problem. You don't mention the PSU ratings or system config/parts so it is hard to speculate about this. What happens if you plug in a different load instead of the motherboard, like a few old hard drives?
What is the history of this PSU, was it working properly in this or another system or?? -
Re: AcBel PSU weird problem... =_=
If it was working earlier with the same mobo, then your problems could be related to:
1) Bad/marginal capacitor(s) on the auxiliary +5Vsb rail.
2) Bad/marginal caps on the other secondary rails.
2) A defect in the PS-ON circuit (which is triggered by the green lead from the ATX connector).Comment
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Re: AcBel PSU weird problem... =_=
Or maybe your mobo hates your PSU? Sounds odd I know but my brother's mobo hates the Enhance ENP-5140GH that I got for it. Won't power up properly or anything. Works with other PSUs, and the PSU works with every other system I stuck it in. Weird stuff sometimes.Comment
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Hello!
I have this very weird problem, I got this rx580 nitro saphire and the fans don't even spin but the saphire logo is lit.
All voltage rails are present except for VCORE at the coils, then I started checking NCP81022 and it has voltage but vdd pwrgd is missing, enable EN is missing it shows 2.5ohm, everything seems fine, i tried checking the back of the card, to see where the enable pin goes, i dont have a schematic so i started touching randomly until i measured a resistor on the back and the fans started spinning, now I was amazed like what is wrong here? So I thought it's a... -
Hi all, first time seeing a LED problem this weird so I wanted to discuss with y'all before handing back this TV to my costumer.
This TV came to my shop with no picture but sound present. So I thought ok this must be a LED problem and I shine a light with my phone's torch amd and yup I see the image. So I disassemble it and before changing the LEDs I check the motherboard voltages (this unit works with an external 16V DC brick) and I see 54 volts at the input pin of LED strip, considering this TV has 2 strips of 7 LEDs which at 3~ volts it must be equal to like 42 volts. I remove... -
I have an LG Plasma TV 60PM6700 for the past ~12 years.
In the last ~3-4 months I have been having some issues.- Problem: It started with random picture disappearing (sound still worked).
Frequency: Happened about once a week.
Solution: Had to turn off TV wait a few seconds before turning it on again. - Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
Frequency: Happened about once a week.
Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve. - Problem: TV shuts down
- Problem: It started with random picture disappearing (sound still worked).
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Hi guys,
If I unplugged the battery and the charger, then plug the battery then the charger, it charges without problem.
Then if I unplug the charger and plug it back, it won't charge anymore.
In the first case, main voltage is regulated at ~12.5V and charges the battery.
After unplugging the charger, main voltage drops to battery voltage at ~11.5V.
After replugging the charger, main voltage stays at ~11.5V and won't go up to ~12.5V again.
I found C520A (2.2ยต after current sensor from USB-C source) completely burnt and removed it properly. I cleaned... -
I installed a new keyboard and it can smc reset and the power button works. but nothing apart. no boot picker e.g. I am wondering how this can be explained if the alt key (smc reset) is working. I am aware that on the board side shift, ctrl, alt and pwr are separately wired but the board, trackpad/cable are good. The keyboard was tested working prior installing and as another keyboard now tested on the same board improvised works as well the only idea I have is that I damaged the keyboard flex cable while installing it into the case. But why hell smc reset and power are working then ? Anyone has...
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