PC Peripherals Help ,New PC showing No signs of power(wont turn on)

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sudhanshu123

sudhanshu123

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I didnt know where to put this thread so put it here mods,please move it to the right section if this is wrong.thanks.

ohk guys as the topic suggests i bought myself new pc parts and assembled it day before yesterday and now i have got this problem(and its sucking the life out of me).i will just be explaining the problem and asking for help but i want to tell you that all the components bought were ordered off flipkart(i dunno if this was foolish,and also if anything does turn out faulty please please tell me how to avail warranty,i have all the bills with me)So with that out of the way i will tell all the components ordered :

Biostar TA990FXE- MOBO

AMD FX 8120 - PROCESSOR

Asus GTX 560 Ti DirectCU II- GPU

CORSAIR vengeance 4GB-RAM

Gskill Ripjaws 2GB -RAM

CM 430 Elite -CABINET

Seasonic S12II 520W -PSU

I already had a 500GB HDD and an optical drive so used them in assembling the pc together.

PROBLEM:So when i assembled the PC day before yesterday,it started out fine.Formatted the HDD and installed fresh windows 7.Then yesterday i wanted to oc the proccy,so went in the bios,set the multiplier 20x(the BCLK was 200) and set the cpu voltage to 1.3v.Did not fiddle with any other setting other than disabling any and all options which downcored or reduced cpu frequency for saving power.Then saved the settings and restarted the pc.

Upon restarting the PC did not POST,so turned the PC off by switching the PSU off.Then when i turned the switch on to start the PC up again nothing happened.Just no light turning on,the front light on the case did not turn on and no lights turning on,on the mobo.So i tried switching the psu on and off a couple times,checking the cable connecting the PSU to the AC wall socket but still nothing,the PC just stays "dead".so i bring my other PSU(very old but known to be working) to test it.Now this psu had all the connectors i needed to test my PC but it had only a 4PIN ATX power connector but my mobo takes a 8PIN ATX power connector so i didnt connect it.Connected the 24/20 Pin power connector on the mobo and tested for any light turning on but still nothing.So is the 8pin ATX power connector necessary for turning front panel lights on?also tried clearing the CMOS(but how could this have any effect, right?),took out the battery for some time but still nothing.

ohk anyway,so here i stand-With a new PSU and a new mobo but nothing powering on.I dont think the psu is faulty because it worked alright for one day,so i suppose it cant go boom suddenly can it?and i have the same thoughts for the mobo.i am very tensed right now because i feel like i wasted all my money(and by law of E=MC^2,i could blow the universe up if i could).Please tell me guys if i have missed anything?what should i do?i dont have a multimeter to test the PSU.and also could trying to oc have any relation to this?i just want to see the pc up and alive again and also please tell me how one can avail warranty on products ordered by flipkart,i suppose an email to them would suffice?
 
Cant really help with the technical stuff, but Flipkart has a 30 day warranty, so you dont really need to deal with the company once you identify the failed part
 
So is the 8pin ATX power connector necessary for turning front panel lights on?
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yes its necessary for proper functioning of cpu + mobo too. else why would the manufacturer go to the trouble of putting those sockets on board.
 
so is the mobo faulty?and does anyone here have any experience claiming warranty from flipkart?i will try sending them an email then and try to get the mobo replaced.also,how should i test the mobo for faults?guess i will have to get a multimeter for the psu though.
 
i doubt if flipkart will handle RMA, still you can shoot them a mail

Also tell them its DOA, and don't mention anything about OC
 
test the power supply by shorting the Green wire and the black wire adjacent it on the 24 pin connector . connect one fan to molex directly and if it doesnt spin then psu is dead .
 
1) Why did you overclock your FX-8120 from 3.1GHz to 4GHz in 1 shot? Why didnt you try the 16x multi first and then step by step increase it to 20x?

2) After it did not POST, why didn't you reset the CMOS instead of trying to power it on again? You say "(but how could this have any effect, right?)". Wrong. Your overclock failed, resetting the CMOS is the only way to get it back to default settings.

3) Which is this old working PSU? Is it a good brand? Is it rated for enough power for a GTX 560 and 8-core processor? If it isn't, you risk overloading and frying the rest of your components.

4) Your processor gets all its power from the ATX 12V connector. A 4-pin ATX 12V connector can be used in an 8-pin ATX 12V slot.

Here's what you do:-

Disconnect this old PSU.

Reset the CMOS properly.

Reconnect your Seasonic PSU properly, and try powering it on.

If it doesn't work, disconnect the Seasonic, add a dead load like an optical drive and a fan, and short pin 16 (green) and 17 (black) in your 24 pin connector as said in the post above.

In future, before you are about to do something horribly wrong like this, please cross check with someone first!

Telling us what you have done after you have done everything wrong is pointless. And reaching for warranty after you know you have messed up shows a total lack of responsibility. Buy new components, read up a bit, and DO NOT overclock till you know what you're doing.
 
Reset the bios. Try to borrow a apsu from someone else. My feeling is that you might have disconnected some wire and not reconnected. Check
 
This is SCARY stuff .......
death.gif


And lessons for all (esp 1st Time OC'ers).

Always take one step at a time..... observe how things go and then move ahead.

Incidently is "Biostar" a reliable brand for OC'ing ?

How much OC can the stock cooler handle for FX8120 ?
 
Even your board doesnt have an onboard. if you have any other low budget gpu then try using it and borrow a psu from a friend and try using that. I think a normal local psu will suffice just for checking whther the psu is faulty or mobo. If it powers up then its your psu if not then mobo.
 
Altair said:
I think a normal local psu will suffice just for checking whther the psu is faulty or mobo. If it powers up then its your psu if not then mobo.
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Startup inrush currents. That brief second when you hit the power switch, the power draw will be way higher than what you can get even if your system is loaded 100%.

I have seen local psus unable to power even simple i3 systems.
 
Jarod said:
Startup inrush currents. That brief second when you hit the power switch, the power draw will be way higher than what you can get even if your system is loaded 100%.

I have seen local psus unable to power even simple i3 systems.
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I used My Phenom X6 its 125w one with a HD4350 for alteast a month with two HDD's and one 80mm fan. It ran flawlessly. Mine was Techcomm 450w. I think it can handle it just for a few secs/mins only. Just for Checking. Atleast he'll get to know whats the problem.
 
If he finds a very low power GPU, maybe. With his GTX560, no way.

Considering he did not even plug in the ATX 12V connector, I doubt he will plugin the PCIe power connectors.
 
Jarod said:
If he finds a very low power PSU, maybe. With his GTX560, no way.

Considering he did not even plug in the ATX 12V connector, I doubt he will plugin the PCIe power connectors.
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You mean low power GPU right? Obv. He cannot use a 560 on a local one.

Still OP Try to borrow a PSU from a friend. Even if you don't get a display out atleast you will get to know whether your mobo is fine or not causethe system will power up at least.
 
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