3-Beep Dell 5110

[khelane]

Hello
A Dell 5110 with a 3-beep problem
When I turn on the device, the device starts with 3 beeps and after one second, it gives 3 short beeps in a row, then pauses again for one second and then 3 beeps until I turn off the device.
Without RAM, the problem still persists
Programmed BIOS.
The motherboard is clean.

[mcplslg123]

Re: 3-Beep Dell 5110

Wondering with so much information you gave, how i can help. No measurements, no steps -nothing.

[khelane]

Re: 3-Beep Dell 5110

Wondering with so much information you gave, how i can help. No measurements, no steps -nothing.

Rome has been replaced
The CPU has been replaced
The bios program has been run twice
There are no signs of burns or damage to the board
These two voltages are enough or the voltages of which parts to take
3.3 v and 5 stb are present
1.5 and 0.7 ram ok

[mcplslg123]

Re: 3-Beep Dell 5110

Consumption on dc supply
01.With Ram
02.Without ram

1.8V present?? vcore present?? dramrst# present??

[khelane]

Re: 3-Beep Dell 5110

I checked the device again with another CPU and the beep changed from 3 beeps to 5 beeps.
I had an image on the monitor but I did not have an image on the laptop monitor. I refluxed the graphics, the image was correct, but now I do not have BACKLIGHT.
On pin 123 LVDS
I have 19 volts but I do not have 5 volts on pin 5, the resistance value of R4902 is 33 ohms and it is correct.

[khelane]

Re: 3-Beep Dell 5110

LVDS PIN
1,2,3 =DCBATOUT_LCD 19 V
5 = LCD BRIGHTNESS 0 V
15 = BLON_OUT_C 0 V
26 = LCD_TST_C 0 V
27 = 3.3 V
38,39,40 = 3.3 V


RN4901
both side are 0 volt,I checked the i/o pins but they did not have voltage

One note: PCH gets so hot that it can not be tolerated by hand

[khelane]

Re: 3-Beep Dell 5110

up

[Stevedb]

Re: 3-Beep Dell 5110

If the pch is hot then it is dead and game over.

[khelane]

Re: 3-Beep Dell 5110

ok tnx