Dell Inspiron 5559 No Display

[dspok]

Hello, I have above said model.
Please help me, It turns on without no display. Every voltage supply is ok. Tried different BIOS and original clean me bios but no effect.

Problem is it looks like display about to come, fan spins high. When I power on display goes dark without any data and backlight.

Any help will be appreciated. Thanks.

Original bios attached.

[SMDFlea]

Re: Dell Inspiron 5559 No Display

Did you test on external monitor .

[dspok]

Re: Dell Inspiron 5559 No Display

yes, with no luck.

[SMDFlea]

Re: Dell Inspiron 5559 No Display

What is your service tag number .

[Techtiger]

Re: Dell Inspiron 5559 No Display

did you check DIMM SLOT
+0.675V DDR
+DDR VREF VTT
+1.35V MEM
DDR DRAMRST

+5VS +3VS ON U22 OK ?
All voltages in U5602 are ok ?
All voltages in U15 are ok ?

[dspok]

Re: Dell Inspiron 5559 No Display

What is your service tag number .

Its G7DDL72, I hope you can do latest bios update from dell.

did you check DIMM SLOT
+0.675V DDR
+DDR VREF VTT
+1.35V MEM
DDR DRAMRST

+5VS +3VS ON U22 OK ?
All voltages in U5602 are ok ?
All voltages in U15 are ok ?

All voltages you specified are ok.

[dspok]

Re: Dell Inspiron 5559 No Display

I have same issue with another model HP 640 G1.
https://www.badcaps.net/forum/showthread.php?t=75074

Problem on both system is same fan spins fast and no display.

[Techtiger]

Re: Dell Inspiron 5559 No Display

Do you have the oscilloscope to test Bios data

[on/off]

Re: Dell Inspiron 5559 No Display

Hello, I have above said model.
Please help me, It turns on without no display. Every voltage supply is ok. Tried different BIOS and original clean me bios but no effect.

Problem is it looks like display about to come, fan spins high. When I power on display goes dark without any data and backlight.

Any help will be appreciated. Thanks.

Original bios attached.

Try this from official:

[kalilinux25]

Re: Dell Inspiron 5559 No Display

I have the same problem here

[mcplslg123]

Re: Dell Inspiron 5559 No Display

Fan goes high when vcore is not present on many dell/sony.