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Smps not power on

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You need to replace the power supply

Posted on Apr 23, 2013

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Posted on Jan 02, 2017

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1 Answer

No power to hp envy


Hi,
I suggest you step by step follow check it your Desktop issue.
A> All power plug proper connect or not, if possible change another port.
B> Have your ups get power or not, If ups on then nest step follow.
C> Check it SMPS on or off position. If your power ok and come to smps or smps not start then you SMPS damage position, you check it smps ok conduction or not..

Checking method:
SMPS more wire available you see it one more bulk wire available and black wire and green wire cross check, if not start smps then damge. But my friend if you smps ok or your are wrong wire attach then may be your smps damage. So better contact good Computer Hardware Technician.

Thanks.
Computer Support

Feb 19, 2014 | HP ENVY 23-d065 TouchSmart All-in-One...

1 Answer

Smps working indivudually but motherboad no disply and when i conect to board in that time smps and cpu fan also not working why


1.) Use alternative SMPS
2.) Use alternative motherboard
3.) Unplug HDD, check if BIOS screen is displayed
4.) Check if your input voltage power to the SMPS is sufficient

Feb 26, 2013 | Intel DG31PR Motherboard

1 Answer

How to test this old dell smps,


hi,
take jump clip / a metal wire. Take the SMPS 20/24 pin connector. connect one end of the wire to black and other end to green. power the SMPS. If it is working its ok. otherwise SMPS having problem


thanks & regards
Anas K A

Jul 04, 2011 | Dell Power Supply for SMP-2450 (330 W,...

1 Answer

Ive had this bluray player for 2 years and it was working fine, then one day i tried to turn it on and nothing happened. i checked if the fuse was blown but i appears to be fine. so there is no power...


hi,
there is possibility of two complaints.
1, The SMPS power supply fault
2. the mother board fault.
if the SMPS is faulty the you can rectify the problem. If it is with the mother board the you have to contact the manufacturer .
First of all you have to check the SMPS ( switch mode power supply). you have to check the voltages at it secondary stage. 5v, 12v, etc
switched-mode power supply (switching-mode power supply, SMPS, or simply switcher) is an electronic power supply that incorporates a switching regulator in order to be highly efficient in the conversion of electrical power. Like other types of power supplies, an SMPS transfers power from a source like the electrical power grid to a load (e.g., a personal computer) while converting voltage and current characteristics. An SMPS is usually employed to efficiently provide a regulated output voltage, typically at a level different from the input voltage
for checkin the SMPS voltaes you need a multimeter. And check the voltages at it secondary stage
Added the inside view of BD 1600
ajin_g_45.gif

if there is no outputs from the smps then you have to replace the SMPS drive STR ic near the big capacitor. Also ty to replace the OPTO coupler ic. y have to check the all resistors near the ic.

Remember one important thing that the capacitor can hold charge for some time even if you disconnect the power. so after removing the power. remove the SMPS very carefully. discharged the capacitor using a bulb.
i have also added a video for SMPS working for you reference will hep you for repairing your one

ok

Apr 07, 2011 | Samsung BD-P1600 Blu-ray Disc Player

1 Answer

SMPS is oK but when i power on my system not on SMPS and power


hello mirza7862010
  1. check the small button in SMPS backside
  2. whether its ON or Not..
  3. if it means check the power cable join with SMPS..
  4. and also check the motherboard connection of SMPS...
  5. If it okay means check power cable to the cabinet...

Dec 26, 2010 | Intel PENTIUM-4 865GV CHIP MOTHER BOARD...

1 Answer

No power coming on intel desktop motherboard d845


Check the power supply to the motherboard i.e the SMPS, if it is working the fan of the SMPS will rotate. If the SMPS is ATX you can check it without connecting it to the motherboard. Unplug all the SMPS power connectors from the motherboard and then short circuit the green and the black wire of the 20pin connector of the smps, if the SMPS is working the fan of the SMPS will rotate. If the SMPS is in good condition and working, than it might be a problem in the internal circuit of the motherboard.

Check the process here:-
http://www.jestineyong.com/?p=267

Jul 19, 2010 | Intel D845GVSR Motherboard

2 Answers

Power SMPS dead monitor


accer moniter 17,pawer suplly str.no.

Feb 07, 2010 | Computers & Internet

2 Answers

I have a D946GZIS motherboard. It does not boot whenever i switch it on and press the power button. Also the power led is not glowing. What must be the problem..? pls help ..


Starting at the begining. The wall socket, the plug, the cable, the power socket on the SMPS at the back of your PC, the SMPS, the Output connectors from the SMPS to the motherboard. The power LED not glowing means that the power is not reaching the motherboard. Disconnect and reconnect the power connector on the motherboard. start. No start. Does the fan on the SMPS work? If yes then all components before the SMPS are doing fine. If no then most likely connection socket power cable to the SMPS may be the culprit. This has a lot of load on it. The PC and the monitor both take power from this socket. the answer to your problem lies in the answer to my question whether the fan starts in the SMPS or not. If yes then there is no output from the SMPS and the SMPS need to be given the due attention and if no then there is no power input to the SMPS and various cables and socketc need that attention. In case you need to and can remove and open the SMPS look for bulged or burst capacitors. If found, replace them. Those round cylindrical components.

Nov 27, 2009 | Intel D946GZIS Motherboard

1 Answer

Pc not switching on even after changing smps. even fan not switching on in smps


Dear,
You can test you smps simply by shorting any of the back wire and green wire. this will switch on your smps withour connecting with mother board. IF it the fan rotate, SMPS is ok.
If you need more trouble shooting on SMPS you have to measure the volate on each wire after powering on.
More info http://www.smpspowersupply.com/connectors-pinouts.html

Oct 13, 2009 | E-Machines 230W Micro ATX Power Supply,...

2 Answers

Smps transistors failed


It is difficult (or impossible) to tell exactly what caused the transistors to go bad. Sometimes they just fail because they were a little weak, or other parts went bad first and caused the transistors to be damaged. Parts get weaker and values change over time and with use, and failures can happen. The UPS can't stop damage to the power supply if some part inside the supply goes bad, but it is still good to have one. New 450 to 500 watt power supplies can be purchased for $30 to $50 (or more).

Nov 22, 2008 | ASUS K8V-MX Motherboard

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