Power probs

Nizz

Nizz

New member
Local time
4:50 AM
Messages
106
Hey guys

Please help me...

I built a system for my mom about two or three years ago..... then yesterday it just upped and stopped working...

What happens is: You push the start button and the CPU fan spins once and stops... So we went an bought a new power supply but it is giving us the same problem....

I have spare motherboards and RAM... But does anyone know what the problem is?
 

My Computer

Computer Manufacturer/Model Number
Self Built
OS
Windows 7 Professional 64bit + Ubuntu in Virtual Box
CPU
Intel Quad Core 9550
Motherboard
ASUS P5Q SE2
Memory
2048MB Transend
Graphics Card(s)
Powercolor Radeon HD4870
Sound Card
Onboard
Monitor(s) Displays
Fujitsu Siemens Scaleoview L17-7 TFT
Screen Resolution
1280x1024
Hard Drives
500GB Seagate Barracuda
1TB Segate Barracuda
PSU
Huntkey 600W
Case
Achielles
Cooling
3x Fans
Keyboard
Microsoft Reculsa
Mouse
Microsoft Sidewinder 3X
Internet Speed
4MB
Other Info
TEC 5.1 Surround Sound
Free Mouse Pad :P
Try resetting the CMOS battery on your motherboard.. the exact same thing happened to me, and resetting it fixed it..
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
LENOVO K450 @3.0GHZ
OS
64-bit Windows 8.1 Pro
CPU
Core(TM) i5 CPU 4330 Haswell @ 3.20GHz
Motherboard
LENOVO
Memory
12.00 GB
Graphics Card(s)
Intel(R) HD Graphics
Sound Card
Intel HD integtrated
Monitor(s) Displays
HP 25' ISP Monitor
Screen Resolution
1900/1020
Hard Drives
(1) ST1000DM003-1CH162 (2) Generic STORAGE DEVICE USB Device (3) Generic STORAGE DEVICE USB Device
Internet Speed
100mb down/10mb up
Tews said:
Try resetting the CMOS battery on your motherboard.. the exact same thing happened to me, and resetting it fixed it..
Click to expand...

How do i do that?
Is it not going to wipe the CMOS if i take the battery out?
 

My Computer

Computer Manufacturer/Model Number
Self Built
OS
Windows 7 Professional 64bit + Ubuntu in Virtual Box
CPU
Intel Quad Core 9550
Motherboard
ASUS P5Q SE2
Memory
2048MB Transend
Graphics Card(s)
Powercolor Radeon HD4870
Sound Card
Onboard
Monitor(s) Displays
Fujitsu Siemens Scaleoview L17-7 TFT
Screen Resolution
1280x1024
Hard Drives
500GB Seagate Barracuda
1TB Segate Barracuda
PSU
Huntkey 600W
Case
Achielles
Cooling
3x Fans
Keyboard
Microsoft Reculsa
Mouse
Microsoft Sidewinder 3X
Internet Speed
4MB
Other Info
TEC 5.1 Surround Sound
Free Mouse Pad :P
There might be a jumper just near the battery, or take the battery out for 5sec.
 

My Computer

Computer Manufacturer/Model Number
Advent
OS
Dual-boot: Windows 7 HP 32-bit SP1 & Windows XP Pro 32-bit SP2.
CPU
AMD Phenom X4 9550 2.8Ghz
Motherboard
FOXCONN A6VMX (Socket 940)
Memory
4.0GB RAM
Graphics Card(s)
256MB On-board ATI Radeon X1200 Series
Sound Card
UnKnown
Monitor(s) Displays
19" TFT Mointor
Screen Resolution
1400 by 900
Hard Drives
500GB Western Digital WDC
Keyboard
HP Keyboard
Internet Speed
Dial-up via Mobile phone (Three)
Other Info
80GB External Hard-drive.

Also I have an old Windows XP Laptop for backup/occasional use etc.
Ok.. i have removed it... lets see what will happen when i put it back in just now

...

I didnt work.... but what i notcied with this PSU and the other one... it that has a buzz for the brief second that it is operational...
 

My Computer

Computer Manufacturer/Model Number
Self Built
OS
Windows 7 Professional 64bit + Ubuntu in Virtual Box
CPU
Intel Quad Core 9550
Motherboard
ASUS P5Q SE2
Memory
2048MB Transend
Graphics Card(s)
Powercolor Radeon HD4870
Sound Card
Onboard
Monitor(s) Displays
Fujitsu Siemens Scaleoview L17-7 TFT
Screen Resolution
1280x1024
Hard Drives
500GB Seagate Barracuda
1TB Segate Barracuda
PSU
Huntkey 600W
Case
Achielles
Cooling
3x Fans
Keyboard
Microsoft Reculsa
Mouse
Microsoft Sidewinder 3X
Internet Speed
4MB
Other Info
TEC 5.1 Surround Sound
Free Mouse Pad :P
Sounds like you might possibly have a component in the system thats "shorted" which is pulling down one or more of the Power Supply outputs - If you have a voltmeter or an oscillioscope, try checking the +5 and +12V outputs........make sure their OK
 

My Computer

Computer Manufacturer/Model Number
Alienware Aurora
OS
Win 7 Ultimate x64
CPU
Core I7 980X O.C. to 4.0 Ghz
Motherboard
Custom Intel mATX (Bios ver A10)
Memory
12GB 1600 mhz triple channel DDR3 - Kingston
Graphics Card(s)
ATI Radeon HD 5970 2GB Video Card
Sound Card
Creative Labs Titanium sound blaster
Monitor(s) Displays
30" Dell LCD
Screen Resolution
2560 x 1600
Hard Drives
240 GB OCZ Vertex 2 SSD
256 GB Samsung V2 SSD
2TB WD Black Caviar 7200 rpm SATA3
600GB WD Velociraptor 10,000 rpm SATA3
3TB WD MyBook Essential USB 3.0 7200 rpm External
PSU
850 Watt
Case
Alienware Aurora
Cooling
Water
Keyboard
Logitech G15 (original version)
Mouse
Logitech MX1000 Laser - Wireless
Internet Speed
Cable 22 Mb/sec download
Other Info
USB 3.0,
Blue Ray DVD Read/Writer
Bose Companion 3 Speakers
WRT54G Wireless Router
Unplug all power connectors except for the main ATX and the ATX12V connectors to the motherboard. Also unplug all fans with the exception of the CPU fan (under no circumstances should you run the system with this disconnected). If your graphics card has power connector(s), leave it/them connected as well. Better still, if the motherboard has on-board graphics, temporarily remove the graphics card and use that instead.

Does the system now start up? Ignore the message about not being able to find the OS (which it won't, until the HDD is reconnected). If it does, reconnect each of the disconnected items one at a time and test again. Repeat until you find the culprit. Verify this by disconnecting it and testing again.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dwarf Dwf/11/2012 r09/2013
OS
Windows 8.1 Pro RTM x64
CPU
Intel Core-i5-3570K 4-core @ 3.4GHz (Ivy Bridge) (OC 4.4GHz)
Motherboard
ASRock Z77 Extreme4-M
Memory
4 x 4GB DDR3-1600 Corsair Vengeance CMZ8GX3M2A1600C9B (16GB)
Graphics Card(s)
MSI GeForce GTX770 Gaming OC 2GB
Sound Card
Realtek High Definition on board solution (ALC 898)
Monitor(s) Displays
ViewSonic VA1912w Widescreen (VGA)
Screen Resolution
1440x900
Hard Drives
OCZ Agility 3 SSD 120GB SATA III x2 (RAID 0)
Samsung HD501LJ 500GB SATA II x2
Hitachi HDS721010CLA332 1TB SATA II
Iomega 1.5TB Ext USB 2.0
WD 2.0TB Ext USB 3.0
PSU
XFX Pro Series 850W Semi-Modular
Case
Gigabyte IF233
Cooling
1 x 120mm Front Inlet 1 x 120mm Rear Exhaust
Keyboard
Microsoft Comfort Curve Keyboard 3000 (USB)
Mouse
Microsoft Comfort Mouse 3000 for Business (USB)
Internet Speed
NetGear DG834Gv3 ADSL Modem/Router (Ethernet) ~4.0 Mb/s (O2)
Antivirus
Avast! 8.0.1497
Browser
IE 11
Other Info
Optical Drive: HL-DT-ST BD-RE BH10LS30 SATA Bluray
Lexmark S305 Printer/Scanner/Copier (USB)
WEI Score: 8.1/8.1/8.5/8.5/8.25
Asus Eee PC 1011PX Netbook (Windows 7 x86 Starter)
Dwarf said:
Unplug all power connectors except for the main ATX and the ATX12V connectors to the motherboard. Also unplug all fans with the exception of the CPU fan (under no circumstances should you run the system with this disconnected). If your graphics card has power connector(s), leave it/them connected as well. Better still, if the motherboard has on-board graphics, temporarily remove the graphics card and use that instead.

Does the system now start up? Ignore the message about not being able to find the OS (which it won't, until the HDD is reconnected). If it does, reconnect each of the disconnected items one at a time and test again. Repeat until you find the culprit. Verify this by disconnecting it and testing again.
Click to expand...

Hey thanks man...
It turns out that something on the motherboard was shorting the PSU.... luckily i had a spare motherboard lying around so i just shoved it in and now it works fine...

The short only came about when the four pin connector was plugged in..
 

My Computer

Computer Manufacturer/Model Number
Self Built
OS
Windows 7 Professional 64bit + Ubuntu in Virtual Box
CPU
Intel Quad Core 9550
Motherboard
ASUS P5Q SE2
Memory
2048MB Transend
Graphics Card(s)
Powercolor Radeon HD4870
Sound Card
Onboard
Monitor(s) Displays
Fujitsu Siemens Scaleoview L17-7 TFT
Screen Resolution
1280x1024
Hard Drives
500GB Seagate Barracuda
1TB Segate Barracuda
PSU
Huntkey 600W
Case
Achielles
Cooling
3x Fans
Keyboard
Microsoft Reculsa
Mouse
Microsoft Sidewinder 3X
Internet Speed
4MB
Other Info
TEC 5.1 Surround Sound
Free Mouse Pad :P
You must log in or register to reply here.
Back
Top