Where does power led go - eMachines T3516 PC Desktop

Likely the diodes are also blown, and are what caused the capacitors to blow.

MOVED YOU OUT OF COMPUTERS TO TV.

1. VR2/VSI DIAGNOSTIC FLASH CODES

# OF LEDS
CODE
CAUSE
POSSIBLE SOLUTION
One red LED
1
Low battery voltage
Charge batteries
Two red LEDs
2
Left motor open
Make sure left motor is plugged into controller.
Three red LEDs
3
Left motor wiring fault
Contact your authorized Pride Provider.
Three red LEDs One yellow LED
4
Right motor open
Make sure right motor is plugged into controller.
Three red LEDs Two yellow LEDs
5
Right motor wiring fault
Contact your authorized Pride Provider.
Three red LEDs Three yellow LEDs
6
Inhibit active
Contact your authorized Pride Provider.
Three red LEDs Four yellow LEDs
7
Joystick error
Contact your authorized Pride Provider.
Three red LEDs Four yellow LEDs One green LED
8
Controller error
Contact your authorized Pride Provider.
Three red LEDs Four yellow LEDs Two green LEDs
9
Brake fault
Make sure both motors are plugged into controller.
Three red LEDs Four yellow LEDs Three green LEDs
10
High battery voltage
Contact your authorized Pride Provider.
What if the speed LEDs on the VR2/VSI begin to flash?

• Determine if the battery charger is connected to the power base. When the battery charger is connected to the power base, a charger inhibit feature keeps the power chair from driving. This is indicated by the VR2/VSI speed
  LED(s) flashing.
• Determine if the charger harness fuse has blown. A blown charger fuse can cause the charger inhibit to
  activate.
• Determine if all controller connections are plugged into the power base properly. If the 3-pin charger
  inhibit connector is not plugged in properly, then the charger inhibit feature will activate.

Possible failed video card. 3rd LED indicates MLB and GPU are communicating: (CAUTION! There is high voltage from the powersupply so any attempt to open iMac other than removing glass panel to see the indicators...should be done by authorized ACMT)

• LED 1 - Indicates that the trickle voltage from the power supply is detected by the main logic board. This LED will remain ON while the iMac is connected to the AC power. The LED will remain on even when the computer has been shut down or put to sleep. The LED will turn off only if the AC power is disconnected or the power supply is faulty.
• LED 2 - Indicates that the main logic board has detected proper power from the power supply when the computer is turned on. This LED will be ON when the computer is turned on and the power supply is working correctly.
• LED 3 - Indicates that the computer and the video card are communicating. This LED will be ON when the computer is communicating properly with the video card. If LEDs 1 and 2 are ON and you heard the startup sound, but LED 3 is OFF, then the video card might be installed incorrectly or need replacement.
• LED 4 - Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.

replace bad capacitor on power board (like 820/25v or 1000/2v)

that is custom system like mine a DIY build
and custom unstated case., bought as new case only I bet of vast.
and if built wrong it fails.
the LED is where the POWER on LED wired wrong is it.
the Power on led does flash wired correctly for sleep mode.
if wired wrong is now the HDD activity LED, and should flash
x58 is good chip set, pure intel it is
usb3 chip NEC needs good driver so watch out there.
pwr_on LED
goes to pins 2 and 4 only on the header. page 30 in linked manual
if is wired correctly the led is called MSG

MSG/PWR (Message/Power/Sleep LED, Yellow/Purple):
and
Connects to the power status indicator on the chassis front panel. The LED
is on when the system is operating. The LED keeps blinking when the sys-On is in S1 sleep state. The LED is off when the system is in S3/S4 sleep Blinking state or powered off (S5)
so the manual told you blinking is S1 power state ACPI.
other causes
bad LED (power button)
loose wires at mobo end of that or at power switch.
mobo bad, here, rare as hens teeth if user did not jumper DC power to this LED pin and blow the driver transistor up. guesses wild does that.
BIOS controls (you set it) soft power off , instant off or off. mode.

no case told some are dead wrong here, some cases , use a 2 way LED for power, and is 2 LED wired in parallel and reversed
to get 2 colors . and fails on simple mobo. not using bipolar controls to LED. NO CASE told so NO JOY , 10,000 cases made or more that the same but generic cases do work if is that, not OEM cases..

Front Panel Block Cable Connections

f_Panel

1 3 5 7 9
. . . . .
. . . .
2 4 6 8

1] HDD-LED (+)
2] Dual Power-LED* (+)
3] HDD-LED (+)
4] Dual Power-LED* (-)
5] Reset Switch
6] Power Switch
7] Reset Switch
8] Power Switch
9] Dual Power-LED* (**)

* Single Color Power-LED 2 or 3 pins:

[.] . .
1 2 3

1]Power-LED (+)
2] GND
3] GND


** Dual Power-LED:
if useing dual power LED,
Green: pin2
Yellow: pin4
otherwise, Pin2 is positive (+) Pin4 is negative (-

For future Reference you can download your manual directly from the manufacturer's website HERE
Or directly from HERE

5V Stand-By Indicator LED
The power supply will always supply a 5V standby voltage to your
motherboard so that it can power on via for example Wake On Lan
technology. This LED shows that your power supply is supplying
this standby voltage to your motherboard.n :D

You may need to replace your power supply, if the LED is flashing, it's not supplying the power the motherboard needs.

[JP-25]

1 2 3 4 5 6 7 8 9
. . . . . . . . .
. . . . . . . .
10 11 12 13 14 15 16 17 18


1] Power Led (+)
2] --
3] Power Led (-)
4] --
5] --
6] Speaker (+)
7] --
8] --
9] Speaker (-)
10] Reset switch
11] Reset switch
12] N/A
13] Power Switch
14] Power Switch
15] ACPI Led (+)
16] ACPI Led (-)
17] HDD Led (+)
18] HDD Led (-)


For future reference you can download your motherboard manual here:
(PDF) Soyo K7VKP2

Hi Franceso, plz specify
Is it powering ON ?
Which LED is glowing?
These leds are there on the front panel :

1 Power On/Standby button
2 System power LED
Green = Power on
Amber = System shut down, but power still applied
Off = No power

3 Internal health LED (Wave sign in BOX)
Green = Normal
Amber = System degraded. To identify the component in a degraded state, refer to system board LEDs.
Red = System critical. To identify the component in a critical state, refer to system board LEDs.
Off = Normal (when in standby mode)

4 External health LED (power supply)
Green = Normal
Amber = Power redundancy failure
Red = Critical power supply failure
5 NIC 1 activity LED Green = Network link
Flashing = Network link and activity
Off = No link to network.
6 UID LED Blue = Activated
Flashing = System remotely managed
Off = Deactivated
7 UID button

If it is Internal health led then any internal h/w issue is suspected.
If it is external health led then any power supply or power source related issue is suspected.
Also check the status of the server & its IML (Integrated Management Logs) in ilo (Integrated Lights Out ) if it is configured. (2nd RJ45 port in rear)

Also make sure the cabinet is properly closed.

There is a line connection on power led that has a negative and positive maybe it inter change. Or there is an inter-change connection between your power led and reset led in *********** board.