Re: dell inspiron 15 5578 memory or systemboard error
Finally got them in. You was right about the position of the 12k and 24k resistor.
I did not place the cap as I couldn't get one of the pads clean and ok. Don't have the tools for it, but it states optional on the chip info.
Any idea of the risks involved not having one in?
Best part is that the laptop runs again 😁
Hope it will have a long life ahead.
Thanks for helping out 👍
bingbadaboem
Member
Last Activity: 10-11-2019, 02:27 AM
Joined: 11-27-2018
Location: rotterdam
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Re: dell inspiron 15 5578 memory or systemboard error
Ok I don't have the resistors in so Will have to order Some. Will be Some time.
What tolerance should they be?
Also for the cap. Will order that in also cause that Will take Some time too.Leave a comment:
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Re: dell inspiron 15 5578 memory or systemboard error
Looking at the schema of the ic an I correct to assume we are looking at r1 r2 and c1 in the burned area?
And that
pr5420 = r2
pc5411 = c1
Pr5419 = r1
?
Also checked the copper collored connection next to the pr5419 writing it reads 3.37 VLeave a comment:
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Re: dell inspiron 15 5578 memory or systemboard error
I cleaned the burned area and now get the following readings:
Gnd to fb - 0 V
Gnd to both Vout - 3.37 V
Gnd to en - 3.37 V
Gnd to pok - 7.19 mV
Gnd to Vcntl - 5.24 V
Gnd to Vin - 3.37 V
Also pr5420 seems ok - at least I read 13.68 kΩ both ways.Leave a comment:
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Re: dell inspiron 15 5578 memory or systemboard error
Hi thanks for the datasheet.
This are my findings:
Gnd to fb - 0 V
Gnd to both Vout - 0 V
Gnd to en - 192.2 mV
Gnd to pok - 0 V
Gnd to Vcntl - 5.2 V
Gnd to Vin - 1.51 mV
Also posted better pic of area...Leave a comment:
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Re: dell inspiron 15 5578 memory or systemboard error
Yes there is a chip on the other side, it reads: apl5930 pt2cxLeave a comment:
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Re: dell inspiron 15 5578 memory or systemboard error
Don't know the reason they blew. The board looks fine on all other points.
If I only had a donor board...
Without schematics its hard to tell for me but the part seems related to the memory slots. Rather not bridge the resistors.Leave a comment:
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dell inspiron 15 5578 memory or systemboard error
hello all,
got a dell inspiron 15 5578 which had a bios issue which is hopefully sorted.
I did however find three fried components on the mb.
the system indicators indicate systemboard or memory fault.
the fried components on mainport are on the picture and marked:
pr5420
pc5411
pr5419
Now the question is what are these and where could I get those parts so I can soder new ones in.
the mainboard p/n: 0pg0mh
thanks,
...
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Re: dell inspiron 15 5578
hi,
I flashed the bios and it seems there is life in the laptop again.
Only it is a flashing error code indicating mb or memory.
A closer inspection of the mb on the back lead me too some fried components.
Supose I'll have to make a new topic somewhere as this is not bios request related now. Thanks for the help.Leave a comment:
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Re: dell inspiron 15 5578
I found the dp/n on the bottom of the mainboard: 0pg0mh
I Cannon find the markings you mentioned....Leave a comment:
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Re: dell inspiron 15 5578
Hi thanks for the reply,
I got this laptop with an empty bios chip.
Other Guy did not save original dump.
Hence I'm looking for a clean fresh dump of this bios.Leave a comment:
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dell inspiron 15 5578
hello all,
does anyone happen to have a clean bin bios file (with clean me) for the dell inspiron 15 5578 laptop? For use with a programmer.
thanks
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Re: hp probook 470 g3 i5
Got the laptop up and running smooth again
ran hp bcu util and collected and filled all required info.
Thanks for the help!Leave a comment:
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Re: hp probook 470 g3 i5
hi bachir,
Thanks for the bios. This one seems to do the trick.
It does give a warning 'system is booting in manufacturing program mode... : 32'
but I've seen this is either no problem or fixable.
Will put laptop back together and see how far I get.
Will post the results.Leave a comment:
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Re: hp probook 470 g3 i5
I got the same behaviour back on the old bios.
When I verified it came back faulty so I erased chip and programmed again with old broken bios. the laptop when turned on two long beep , two short beep.
Tried and verified above bios again, no succes.Leave a comment:
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Re: hp probook 470 g3 i5
Hi mahmoodjavan,
Thanks for the reply.
With this bios the laptop is completely dead.
Not a single light and cannot turn it on.
I reloaded the original defective bios, strange thing it reacts different now, before it would beep and numlock would blink now only the light next to the powerplug will start flashing continuously.
Any ideas or other bios to try?Leave a comment:
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hp probook 470 g3 i5
Hi guys,
I've got a laptop which doesn't boot anymore.
mainbord - dax63cmb6c0 rev c (tried one offered in other post, no luck).
It comes on but only flashing lights, few beeps and high fan spin.
No screen. All key presses not working.
Got myself a programmer and can read the chip.
Now looking for a clean dump for my laptop for use with the programmer or some genius who can fix my dump. I enclosed the dump with the problem.
Thanks
...
Last edited by bingbadaboem; 02-16-2019, 05:59 PM.Leave a comment:
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Re: New Members - please post your introductions here
Hi everyone. In search for infinite wisdom I ended up here.
Let's see where it will take us
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