Re: Faulty Enermax Liberty ELT620AWT
Excellent. Let us know how it works out.
Excellent. Let us know how it works out.
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Re: Faulty Enermax Liberty ELT620AWT
I have installed the new IC and on the bench, the PSU turns on but when installed in the 'old' PC with the GA-K8NF9 it will not power on unless I manually short pin 16 to ground...
The weird thing is that the PSU works just fine in my new rig with the GA-EP35DS3R powers on/off as expeced. Even weirder is that the other PSU works just fine in both the 'old' and 'new' PC's...E8400 8G Kingston PC6400 RAM
GA-EP35-DS3R mobo
HD4850 512M GA, 2x 1T WD SATA drives
CoolerMaster case/Seasonic 850w PSUComment
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Re: Faulty Enermax Liberty ELT620AWT
It could be that something on the old mobo shorted out the power good generator IC itself rendering the PSU useless?
This is indeed a wierd problem.Last edited by Krankshaft; 07-24-2008, 09:41 PM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: Faulty Enermax Liberty ELT620AWT
If the old board caused the PSU to fritz then why did it always work with another PSU? I will have to put a meter on the PGO and PS_ON lines on both PSU in eash case I think....Originally posted by KrankshaftE8400 8G Kingston PC6400 RAM
GA-EP35-DS3R mobo
HD4850 512M GA, 2x 1T WD SATA drives
CoolerMaster case/Seasonic 850w PSUComment
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Re: Faulty Enermax Liberty ELT620AWT
Ok I have measured the voltages on both systems in OFF state
EP35 with Enermax (repaired PSU) PS_ON = 3.6VDC, 5VSB = 4.65VDC,
Press power ON button, PS_ON 0.06VDC, 5VSB = 4.65VDC, PGO = 2.65VDC
K8NF-9 (original MoBo) with Coolermaster PSU PS_ON = 5VDC, 5VSB = 5.05VDC,
Press power ON button, PS_ON 0.06VDC, 5VSB = 5.05VDC, PGO = 5.05VDC
With the Enermax on the K8NF-9, PS_ON was 5.0VDC and stayed at 5.0VDC when I pressed the power ON button...
I tested the switch and it was OK, checked the switch pins, one goes to ground the other measures about 12K WRT ground. Pin 16 of the ATX connector measures 6K WRT ground. There must be a latch on the MoBo to change the momentary ON switch signal into a HARD OVDC to enable the PSU...
I'm confused and curious but at the end of the day both systems work so I'm happy.
Any ideas or theories are welcome...E8400 8G Kingston PC6400 RAM
GA-EP35-DS3R mobo
HD4850 512M GA, 2x 1T WD SATA drives
CoolerMaster case/Seasonic 850w PSUComment
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Re: Faulty Enermax Liberty ELT620AWT
I've forgotten where I saw it but one of the review sites pulled apart an Enermax Liberty to find the failure. Turns out they were sloppy with the glue used to hold things in until it's soldered. It sometimes has 'stringers' that run between the leads on various MOSFET and Diode packs. - When the particular glue they used gets hard from heat it becomes conductive and shorts the leads together.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: Faulty Enermax Liberty ELT620AWT
i reported this hereOriginally posted by PCBONEZ
https://www.badcaps.net/forum/showthread.php?t=5466
just had a neighbor who bought off ebay show me a new in box liberty.
we opened it up and picked the glue off the board and mosfet legs before we even powered it up.
the glue was starting to break down as it left an oily substance on the board.
i tacked the ferrites to the mosfet leads with blue rtv.Comment
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Re: Faulty Enermax Liberty ELT620AWT
Yup, that was where I saw it.
I couldn't remember for sure.
.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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Comment
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Re: Faulty Enermax Liberty ELT620AWT
So if it is the glue causing the problem then is the power supply a good design overall? Maybe even reliable?
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Re: Faulty Enermax Liberty ELT620AWT
kc8adu best answer that one.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.
-
Comment
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Re: Faulty Enermax Liberty ELT620AWT
wrong thread but THANKS KC8
You step into the Road, and if you don't keep your feet, there is no knowing where you may be swept off to." Bilbo Baggins ...Comment
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Remember this pile of junk electronics I got last year? Well, that's where this Enermax Liberty ECO 400 Watt PSU came from. Like I mentioned, it had cut cables and many bulged caps on the DC output side. I stripped a few cables and did a quick temporary recap with whatever junk (but still reading OK) caps I could find, then performed a basic power test – the PSU passed.
Thus, I knew I'd eventually go around to repairing it. One year later and we're here. 
First shown is the label below, so anyone reading can see what PSU we're dealing with here.
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Hello esteemed members. I appreciate that my question will strike some as being somewhat childishly simple, but it genuine perplexes me! I have repaired several laptops before by removing a faulty capacitor that was short-circuiting the motherboard, whereupon the laptop would then work. For me, it begs the question that, if the current can bypass where the capcitor was when it has been removed, why didn't it just bypass it when it was present and faulty,? I can't get my head round the premise that if the other side of the capacitor is connected to ground, then why doesn't the current simply bypass... -
Hello.
I have an Acer Aspire A317-53 laptop with faulty onboard ram modules, after online searches, I have only found two options to get it working :
- first one is to modify le bios to disable the onboard ram.
- second one is to disable the onboard ram by desoldering some components on the mainboard.
so after some hours google-ing, i have to give-up the modified bios option, main reason is I couldn't find anywhere a such modified Bios, alternate reason is that if windows update makes a bios update, the problem is always here...
so i found that my motherboard... -
Purchased a Ryobi 36V 6Ah battery pack maybe just over a year ago.
Battery pack had been used on about 3 or 4 occasions for powering a cordless lawnmower. I was wanting to use this battery pack again recently, but on checking the battery charge state via the battery pack test button, there was no LED indication at all of charge state which suggested the pack was fully discharged.
I found this to be odd as I usually fully recharge battery packs shortly after use. So either the pack developed some sort of fault which completely discharged the pack cells (after recharging),... -
85” Hisense TV
Greetings,
Request for Technical Assessment – Faulty Hisense 85Q6NAU TV
Dear TV technicians of forum, I hope this message finds you well.
I am writing to seek assistance regarding my 85-inch Hisense Smart TV, model 85Q6NAU, which is currently experiencing a fault. The unit is approximately two years old, and I am not sure if it has a warranty.
I have attached a photo showing the issue for your reference. I would appreciate it if your experienced technician could kindly review the image and provide some insight...
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