Hello, please help; i have this notebook, when i plug in the charger, power led is light white a little bit and that's it.
With charger insert, only mainboard, no ram, no bios battery, no keyboard, no display, i have:
Input voltage go through first 2 mosfet's and current sense resistor.
At PL29 i have 5volts.
Without charger, i have:
On PU2, on PC2 +3VPCU to GND i have 2,5ohms
On PL16 +1.0VS5 S2 to GND i have 0,1ohm; that's is not correct, right?
I attached boardview and manual; thank you.
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/78515-quanta-x63c-dax63cmb6c0-boardview[/url]...
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HP ProBook 450 G3 DAOX63MB6H1 no turning on
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I know that comment is from february, but for someone else, maybe is helping.
So, resistor that you circled in picture, is a 0 ohm resistor(like a fuse); my mainboard is working....
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Re: Asus x541na ic 2N=4H replacement
I already act, i write 3 post ago with my measurements; but, how i can find out is not the cpu in short?...
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Re: Asus x541na ic 2N=4H replacement
Hi there; any hint about my problem? thank you
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Re: Asus x541na ic 2N=4H replacement
Pictures with mainboard:...
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Re: Asus x541na ic 2N=4H replacement
@mon2: rezistance to ground from left coil is 3 kohm, wich i think is ok. On the right coil is short, 0,3ohm(probes rezistance is 0,1ohm); as you can see in first picture, i take it out the coil, and then i have on low part of mainboard, to that mosfet, 1,5mohm, and in upper part i have that short, 0,3ohm
I inject in upper part 1V and is taking 1,1amp and raise by itself to 1,35amp; nothing is heat up noticeable; only the cpu get slightly warm, even if i let it without radiator and i let it ~5 minutes, is slightly warm a bit
...
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Re: Asus x541na ic 2N=4H replacement
Hello; so, today get in my hands second mainboard with the same behaviour. And i want to understand.
So chip RT8249CGQW make 5v and 3,3volts, correct?
(in my picture right coil i take it out, will get back to this shortly)....
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Re: Asus FX506HM bios clear me needed, thank you
So, is not working, i think notebook has also another problem....but i cannot find anything wrong, and i spent i think around 2-3 hours on him...
Saddly, customer was in a hurry, leaving Romania, so not much i can do anymore.
Thanks anyway, guys. Cyaa.
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Re: Asus FX506HM bios clear me needed, thank you
ok, thank you all, i give i try today, and post the result; have a good day
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Asus FX506HM bios clear me needed, thank you
hello; so, i have this asus fx506hm-az121, it's an i7-11800H with NVIDIA GeForce RTX 3060; so, this notebook received some liquid on him; all coil resistance looking good, all looking ok; i clean the oxides, and now, battery is charging, but when i press power button, led light up, and leds from keyboard light up but no screen.
So, i think bios messed up; i try to download bios from asus site, but after delete those 2kb from beginning, bios image on start of the file they are very different; i think asus change the way bios appears/how they are build.
So, any of you can make a Clean...
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Re: Myria MY8315RD - system password invalid
So, it's working, no more password on poweron; thankyou very much, PESTE.
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Myria MY8315RD - system password invalid
Hello; so, one of my friend has this china regular notebook style, Myria MY8315RD, with very "speedy"cpu Celeron 3350 at 1,1ghz...
So, this notebook has sit for a few months, and now when powering on, is asking for password ... of course, they don't rememeber to put some password, but also have a little kid...
Anyway, mainboard is model X133A REV 3.0, and i found several similar notebook on internet, a Haier, UMAX and a MULTILASER; i write bios from all, but with no luck, when press power on, only power on led is light and no screen.
So, best is that someone delete...
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Re: Asus X550EP REV.2.0 BİOS DUMP HELP MEEEE
Thanks a lot mate, it's working perfect. I have Asus R513EP notebook with mainboard X550EP Rev. 2.0....
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ASRock H81M-G v1.01 - i need Clean ME, please
Hi guys; i have this mainboard, and i have some problems with her:
1. it shutdown randomly
2. if i let her shutdown and out of power supply, the next morning will power on only after i made an bios reset from jumper
I do all the changes, cpu, ram, power supply, i even update bios from 1.20 to 1.30, then to 1.40 and last, to 1.50, wich is the last bios vs from asus. I clean with izopropilic alcool all contacts from cpu, ram, sata, pci express. Mainboard is very clean. No pin from cpu socket is bent.
After is power on, it's working perfect, sound, lan, all are...
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Re: Weird but interesting issue with DELL 3542 (intel mb 13269-1)
I'm also at start of beginning to repair.
If chip from my case is not your problem, you have to begin from start: check voltage on input, on first two mosfet, check voltage on coils, and on power button; after that, check resistance on coils; and so on.
If you do not resolve it, it's best that you start a new thread, explain all problems and wait for help.
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Re: Weird but interesting issue with DELL 3542 (intel mb 13269-1)
hello Etterlie; i make a video, when i repair the laptop; you will find here [url]https://www.youtube.com/watch?v=LNc8hMczFRY[/url]
and there you gonna see explain very detailed even the position of chipRe: Weird but interesting issue with...osition of chi...
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Re: Dell Inspiron 15 5567 unknown charger
thankyou mon2, for kind words; yeah, big company hit 2 things with missing PD4: a very tiny money reducing cost and a very big number of notebook get defective and not repaired, things known as planned obsolesce
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Re: Dell Inspiron 15 5567 unknown charger
thank you mcplslg123; when you know how to fix, all job is simple; but, i learning.
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