PC Peripherals System not starting up

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zero_cool

Forerunner
hey guys

so now my rig is complete

i got a

p67a ud3r

core i5 2500

antec true power new 650 watt

gtx 460

2 tb hard disk

cooler master 690 II advanced

gskill ripjawsx 1600

samsung optical drive

now i have connected all the power wires to the respective connectors and yet the system does not start up

whenever i try to start it

just the cabinet fans spin for a second and then turn off

i am unable to figure out what is wrong

i have double checked all the connectors

please help
 
The cabinet fans spin for a minute? And no beeps during that minute? Checked for any display output?

Check that you've plugged in the 8-pin ATX 12V and PCI-E power connectors.

Unplug the front panel connectors from the motherboard header.

Short the power-on pins with a screwdriver and see if the problem still persists.

If it does, it might possibly be an issue with your motherboard or your PSU.
 
Re: System not starting up

The cabinet fans spin for a minute? And no beeps during that minute? Checked for any display output?

Check that you've plugged in the 8-pin ATX 12V and PCI-E power connectors.

Unplug the front panel connectors from the motherboard header.

Short the power-on pins with a screwdriver and see if the problem still persists.

If it does, it might possibly be an issue with your motherboard or your PSU.
Click to expand...

sorry i mean a second

i have double checked the cables

the 8 pin and pci express cables are connected

and i did the screwdriver thing

the issue persists
 
Not necessary. They have thermal sensors, so on a cold start if its below the temperature threshold, they don't start.
 
^yes mate the psu fan must spin as soon as you power it on. If it is not working, the psu is faulty for sure

--- Updated Post - Automerged ---

@eddy, are you sure of that? Do the antec true power have this feature. Do all othe psu have this feature, becuse wheneven i try with my psu even on cold weatheq, the fan spins
 
For such cold start, the temps must be really low, mostly occur in winter. Now its hot summer and i dont think its due to cold start as the OP is from Mumbai. Disconnect everything from PSU, and connect thr green and any black on the 24 pin mobo power pin of the PSU and turn it on, to check if he PSu is working.
 
Re: System not starting up

Not necessary. They have thermal sensors, so on a cold start if its below the temperature threshold, they don't start.
Click to expand...

i know but i doubt if this feature is embedded in this power supply

^yes mate the psu fan must spin as soon as you power it on. If it is not working, the psu is faulty for sure
Click to expand...

but how come the fans are just spinning for a second before coming to a halt
 
See if the CPU and heatsink are mounted properly . Otherwise remove the cpu and install it again properly . Examine the motherboards pins for any damage .
 
zero_cool said:
but how come the fans are just spinning for a second before coming to a halt
Click to expand...

That may be because of the faulty PSU. also check your proccy for overheating.
 
CA50 said:
@eddy, are you sure of that? Do the antec true power have this feature. Do all othe psu have this feature, becuse wheneven i try with my psu even on cold weatheq, the fan spins
Click to expand...

It depends on the PSU. I remember hearing from the earlier Antec distributor that units (IIRC Truepower?) were being sent in for RMA, assuming the fan not spinning meant it was bad. I assumed the same happens on the newer Truepower, but after a bit of googling I learnt it spins even at minimal load.

@zero cool : Disconnect the PSU from your PC and short-circuit the Power-on pin #16 (green) and ground as dominator said. Attach a CD drive or something onto one of the connectors just to simulate some sort of load. If it doesn't spin, you have to RMA your PSU.
 
To rule out short circuit with chassis test system out of the cabinet. I had similar instance where most of the time culprit was PSU with weak +12V line(drop to 9.5~10.8) and in some chassis short circuit with the MB solder face. Check whether accidentally there have been any damage done to CPU socket pins? It could also be a faulty motherboard.
 
i second that check for short circuit with case.

i jhad same issue.

i was about to pull my hairs on it.

it turned out that when you mount motherboard,

you have to put mounting screws on the case.

those copper screws which have hole to mount the motherboard with screws.

so it creates a platform on case on which you will install the motherboard.

try this.
 
first of all try checking the PSU with that black and green trick

if PSU's working then if you have got onboard graphics,try starting your pc without GPU

if that doesnt work i think your Motherboard has some problem

you have mentioned that you have just completed building your rig - in that case the seller can immediately replace it with a new motherboard if you give it to him within 2 days

- This is what exactly happened with me 2yrs back

Hope this helps
 
Well, Firstly check if the PSU is OKAY, have the same PSU and my fan spins from the moment i POWER UP, ambient temps being around 38 Degrees, If you feel confused witht he above trick you can try and replace the PSU with the PSU of the computer you are currently running ON. Not viceversa.

If you are going to swap PSUs, don't test yours in another computer, test another one in your computer.

Now if the PSU is Fine then i would like to know If this is your first time building a PC? First time builds without supervision or taking appropriate precautions can lead to such problems, there are literally millions of things that could have gone wrong, so first of all check with the PSU if it's working fine.

Test your system with another PSU (borrowed or whatever) and if that doesn't change anything, then pull your stuff out of the case and test it on a piece of cardboard. This will rule out any possible shorts that your getting from the case. Remove all case connections and short the power switch pins with a paper clip or screw driver, there is no real power on those pins it's just ground sensing. It's not dangerous, just touch the two pins together momentarily. If the mobo still resets with both PSUs, then remove the VGA to rule it out. It should beep but stay on. If not try removing the RAM, same thing. Post the results.

Dead CMOS battery is also known to cause issues like the one's you are facing but that's for later, first you should check if the PSU is working or not and then with the procedure i posted. Another possibility out of the millions is not using the standoff screws which can causesuch kind of problems and short the Mobo out.

Sorry to hear you are having problems !!!
 
hey guys
sorry i could not reply to you all yesterday as i was busy with my system

i was up late on friday trying to figure out what the hell was wrong and it turns out one of my gskill skill sticks seem to be dead on arrival

i took out that stick and the system has been smooth ever since :D

thank you all for your opinions guys
 
Lol, it is weired. The psu should be on even if the ram stick is dead, also three continuos beep sounds should be hard if the system cant detect any ram. You dint see any of these things happen, thts quite odd. Anyway, congoz on your system. Enjoy it at its full potential.

:)
 
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