no power?

lisaone

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i just finished putting in a few upgrades, motherboard, power supply and CPU. Ive connected everything correctly and it wont turn on, i double checked everything was plugged in right and connected to power but nothing. The only thing i can think of is the front panel power switch connectors, the case power cable that goes to the motherboard is two hole little thing, but the motherboard has 3 prongs, i connected the positive to the positive and the negative in the space next to it (going the right way) is this the right thing to do? Can anyone think of any other reason this might happen? PS i checked the power outlet is on and all those silly little things!
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Samsung NP550P5C-S08AU
OS
Win7
CPU
Intel® Core™ i7 Processor 3630QM
Memory
8gb
Graphics Card(s)
NVIDIA® GeForce® GT 650M Graphics with 2GB gDDR3 Graphic Mem
Sound Card
on board
Screen Resolution
1680x1050
Hard Drives
1TB
Keyboard
logitech g19
Mouse
Roccat Kone
Hi Lisaone,

The only way for anyone here to properly advise is from the actual specs of the hardware involved.

If you can post your M/B and if possible case/PSU Etc specs there is a lot of experience on the forum and I'm sure someone will have a definitive answer
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    ChillBlast - Custom to my design
    OS
    Windows 11 Pro x64 [Latest Release and Release Preview]
    CPU
    Ryzen 9 5950X, 3.8 - 5.2 MHz
    Motherboard
    Asus Prime X570-Pro
    Memory
    64GB [2 x 32GB] DDR4 3200MHz
    Graphics Card(s)
    4GB NVIDIA GEFORCE GTX 1650 Ti
    Sound Card
    On-board SPDIF to 5.1 System + HDMI [5.1 system]
    Monitor(s) Displays
    32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
    Screen Resolution
    2 x 3840 x 2160 @60Hz
    Hard Drives
    1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
    PSU
    NZXT C750 80 PLUS Gold 750W Modular PSU
    Case
    Workstation Case [Matt Black]
    Cooling
    NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
    Keyboard
    Logitech Wireless MX Keys & K400 + others
    Mouse
    Logitech Wireless MX Master 3S
    Internet Speed
    920 MB Down 50 MB Up
    Antivirus
    BitDefender Total Security Pro
    Browser
    Chrome (always run latest Non-Beta)
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    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    Samsung 10.2" tablet
    Blackview TAB 8 4G Android Tablet c/w Keyboard
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Dell XPS 17 10750H
    OS
    Windows 11 Pro x64 Latest RP
    CPU
    Intel I7 10750H 5.0GHz
    Motherboard
    Dell XPS
    Memory
    32GB [2x16GB] DDR4 2933 MHz
    Graphics Card(s)
    nVidia GTX1650Ti 4 GB GDDR6
    Sound Card
    Stock [Realtek] 4 Speaker
    Monitor(s) Displays
    17" IPS UHD+ Infinity Edge Touchscreen
    Screen Resolution
    3840 x 2400
    Hard Drives
    2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
    PSU
    Stock
    Case
    Stock XPS Aluminium & Carbon Fibre
    Cooling
    Stock - Active Fan Control
    Keyboard
    Backlit + Various Logitech
    Mouse
    Stock Track Pad + Logitech MX Trackball
    Internet Speed
    72 MB Down 18MB Up
    Browser
    Chrome
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    10.2" tablet
    Sony Z3 Android Smartphone
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control Pad
    10TB NAS
oh i see, i didnt think anyone would know them off the top of their heads, i underestimate? My Case is NZXT Tempest, it has 2 pin power switch connecter, the motherboard is Gigabyte H55-UD-3H it has the three pins for power switch, the power supply is 750watt kamariki scythe
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Samsung NP550P5C-S08AU
OS
Win7
CPU
Intel® Core™ i7 Processor 3630QM
Memory
8gb
Graphics Card(s)
NVIDIA® GeForce® GT 650M Graphics with 2GB gDDR3 Graphic Mem
Sound Card
on board
Screen Resolution
1680x1050
Hard Drives
1TB
Keyboard
logitech g19
Mouse
Roccat Kone
yeaqh, im clever, i was trying to attach power switch to power led connector.

hurf durf.
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
Samsung NP550P5C-S08AU
OS
Win7
CPU
Intel® Core™ i7 Processor 3630QM
Memory
8gb
Graphics Card(s)
NVIDIA® GeForce® GT 650M Graphics with 2GB gDDR3 Graphic Mem
Sound Card
on board
Screen Resolution
1680x1050
Hard Drives
1TB
Keyboard
logitech g19
Mouse
Roccat Kone
Reading through the manual for the motherboard shows a standard front panel header with two pins allocated for the power switch (Section 1/7 item 9 Page 25) the only Three pin connector is the speaker connector although there is a PWR_FAN header shown on page 23.

I would check that you are connecting to the correct header as this is a little confusing
 

My Computers

System One System Two

  • Computer type
    PC/Desktop
    Computer Manufacturer/Model Number
    ChillBlast - Custom to my design
    OS
    Windows 11 Pro x64 [Latest Release and Release Preview]
    CPU
    Ryzen 9 5950X, 3.8 - 5.2 MHz
    Motherboard
    Asus Prime X570-Pro
    Memory
    64GB [2 x 32GB] DDR4 3200MHz
    Graphics Card(s)
    4GB NVIDIA GEFORCE GTX 1650 Ti
    Sound Card
    On-board SPDIF to 5.1 System + HDMI [5.1 system]
    Monitor(s) Displays
    32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
    Screen Resolution
    2 x 3840 x 2160 @60Hz
    Hard Drives
    1TB M2 SSD OS, 500GB Fast Access SSD, 2 x 8TB Data + Various Externals from 1TB to 4TB, 10TB NAS
    PSU
    NZXT C750 80 PLUS Gold 750W Modular PSU
    Case
    Workstation Case [Matt Black]
    Cooling
    NZXT Kraken X63 280mm CPU Cooler +2x Quiet Case fans
    Keyboard
    Logitech Wireless MX Keys & K400 + others
    Mouse
    Logitech Wireless MX Master 3S
    Internet Speed
    920 MB Down 50 MB Up
    Antivirus
    BitDefender Total Security Pro
    Browser
    Chrome (always run latest Non-Beta)
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    Samsung 10.2" tablet
    Blackview TAB 8 4G Android Tablet c/w Keyboard
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control
  • Computer type
    Laptop
    System Manufacturer/Model Number
    Dell XPS 17 10750H
    OS
    Windows 11 Pro x64 Latest RP
    CPU
    Intel I7 10750H 5.0GHz
    Motherboard
    Dell XPS
    Memory
    32GB [2x16GB] DDR4 2933 MHz
    Graphics Card(s)
    nVidia GTX1650Ti 4 GB GDDR6
    Sound Card
    Stock [Realtek] 4 Speaker
    Monitor(s) Displays
    17" IPS UHD+ Infinity Edge Touchscreen
    Screen Resolution
    3840 x 2400
    Hard Drives
    2TB M2 NVMe, 4TB External + various 500GB & 1TB External NVMe (also have access to spinner HDD from
    PSU
    Stock
    Case
    Stock XPS Aluminium & Carbon Fibre
    Cooling
    Stock - Active Fan Control
    Keyboard
    Backlit + Various Logitech
    Mouse
    Stock Track Pad + Logitech MX Trackball
    Internet Speed
    72 MB Down 18MB Up
    Browser
    Chrome
    Other Info
    Also run ...
    Laptop - Quad 8GB - Windows 10 Pro x64
    Nexus 7 Android tablet x2
    10.2" tablet
    Sony Z3 Android Smartphone
    Wacom Intuos Pro Medium Pen Pad
    Wacom Intuos Pro Small Pen Pad
    Wacom Expresskeys Remote
    Loopdeck+ Graphics Controller
    Shuttle Pro v2 Control Pad
    10TB NAS
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