Nilam
Member
Last Activity: 04-18-2025, 07:46 PM
Joined: 03-08-2021
Location: pathari
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pls any help or suggestion is appreciated. -
LAPTOP LA-999P +V_DDR_REFA ..troubleshooting
Dear all friends
i am stuck in following situation.
When RAM is not inserted the above +V_DDR_REFA signal , which should be 0.67v (half of the RAM Voltage which is 1.35v ) ====ok
but when RAM inserted the voltage comes down to 0.29 v
What could be the reason..
Ichanged working RAM both DDR3L and DDR3 ( on both slots )
Kindly help..
thanks
Nilam Basnet
Nepal
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Re: Acer motherboard DA0ZR7MB8D0 showing MAINON signal short
Thanks for the reply.Leave a comment:
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Re: Acer motherboard DA0ZR7MB8D0 showing MAINON signal short
Schematic .....Leave a comment:
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Re: Acer motherboard DA0ZR7MB8D0 showing MAINON signal short
SIO pin 12 is MAINON which has impedence of 0.000 ohm.
Does it mean sio is short ?Leave a comment:
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How to convert discrete to UMA in Dell N4030 (DELL LATITUDE E6410)
Dear sir
laptop is very hot and shuts down immediately when playing any thing graphics is super hot.
thanksLeave a comment:
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Acer motherboard DA0ZR7MB8D0 showing MAINON signal short
Dear Sirs
symptoms is when power button pressed power LED turns on then off immediately. when i am repairing acer laptop motherboard all power are ok until i reached MAINON signal which shows short to GND which enables almost all PWM ICes .i checked it on SIO but here it also shorted to GND.
Board details M/B part no :- DA0ZR7MB8D0
SIO NUVOTON NPCE 781LA0DX
laptop acer
Kindly help me .
Thanks
Nilam -
Re: EPV51 LA-G078P MB CPU too hot..
Dear sir
sorry for the late reply.
here are the report.
SDA +3.3v (pin 254)
scl (+VDD_spd) +0.78v (pin 253)
SPD(VDD) +3.3v
DRAMRST# 0v (null)
or may be should i recheck with another memory (RAM) ?
seems DRAMRST# not generating ...
kindly help ..whether i use different schematic that uses
thanks...Leave a comment:
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Re: EPV51 LA-G078P MB CPU too hot..
Sir
I do not have schematic and i am not able to check above mentioned points without it. kindly help if anything is available.
Thanks...Leave a comment:
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EPV51 LA-G078P schematic or compatible schematic
Dear sirs
Kindly help for the above.
Thanks
NilamLeave a comment:
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Re: EPV51 LA-G078P MB CPU too hot..
oops, sorry for not mentioning that RAM supply is ok. 1.2 v and 0.60 v are generated properly.
Thanks again.
Kindly explain me ..is it normal to have voltage on one side of coil and nothing on other side of coil ?...Leave a comment:
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Re: EPV51 LA-G078P MB CPU too hot..
Super I/O information dounloaded from here
[url]https://www.badcaps.net/forum/showthread.php?t=67108[/url]Re: EPV51 LA-G078P MB CPU too hot..<...?t=67108[/url]Leave a comment:
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Re: CPU too hot..
Checked following on S i/O .
EC_SMB CK1 =3.06 V
EC_SMB DA +3.0v
SOC_SML 1 clk=3.0v
SOC_SML 1 DATA+3.0v
Note :-Other earlier Super IO information like PBTN_out, SLP_S3# S4 #S5# are all ok.
Pls suggest if i missed something.Leave a comment:
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Re: CPU too hot..
I forget to mention that i donot have schematic for above MB ..
Kindly share if anyone has the same.
ThanksLeave a comment:
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Re: CPU too hot..
I checked coils resistance found around 14.6 Ohms.
I checked voltages on coils . I has 0.86 v on one side but nothing on other side ..
The above scenario is on 3 coils near APU. one coil has 0.94 v on one side but OL on other side.
I am really confused.
The 2 capas i mentioned earlier have 0.00 Ohms to GND.( that are on APU).
I removed the RAM but same issue ..replaced ram also.
Thanks in advance.Leave a comment:
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Re: CPU too hot..
friend ..i read all the posts after visiting the thread but unable to find the solution..
Anyway thanks .Leave a comment:
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EPV51 LA-G078P MB CPU too hot..
dear all ..
i have EPV51 LA-G078P MB ...the cpu is getting too hot when powered on but no display the capacitors above on processor are shorted to GND.
kindly help whether i can remove the capacitors or not ..
Thanks. -
Re: New Members - please post your introductions here
Hello all
My Name is Nilam and i am from Nepal .
Kindly help me to ..how to create a thread or help to post a post so i can repair laptop.Leave a comment:
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