Once the PC is switched off/ shut down it can not bw restarted. PC switch is OK. It starts only when the power plug is takenout for few minutes and put back again. Also, it works only if PC is started within 5-10sec of this, otherwise a faint LED remains on and PC doesent start. The SMPS is Quantum model -250
When i see this error i simply put my windows cd in to the computer and boot from the cd. Then you will have an option to repair windows. This repair will fix the problem and you will not lose any of your data.
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Simple, Just connect a switch to Green wire and one of black wire. When the green wire got connected with negative (Black wires are negative) the SMPS Fan starts which is also a visual feedback to you that SMPS starts.
----------------------O / Grean / -----------------------O Black
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.
open your cpu cover . Then check your power led on motherbord blink or not also reattcha ll connection to motherbord. check your smps fan is movinh when you switch on. May be you have to change smps it is square box from with you attch power code.
Under the start menu there should be an option to shut down; restart; sleep. Use the restart option & it will start rebooting. If this does not work then close all your programs and hit ctrl+alt+del twice. This should start a reboot. Hope this helps.
to chack ur power supply open all connector from system board and drive. then conect power cable with powr supply and powr on ur wall outlet switch. than take mother board connector find green color wire and take a small pice of coper wire and connect it with this green wire and a black wire. then chack smps fan is moveing or not if it's moveing then ur smps OK.
u check almost all ....
also check with u r power buton of front panel of pc if this button is get short then it is possible .....please disconnect switch from board & just short with any metal ....if u r pc is not geting shut down please replace rower switch ...
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You need a new power switch. I am currently working on a S4020WM with the same problem. I cut one wire to the power switch, then used a paper clip to make a jumper to start the machine. It has run fine since then. The only trouble I am having is finding a replacement switch.