DIGIT-ARC read-only archive · snapshot: July 23, 2026

nothing happens after assembling pc

53 posts · originally from https://geek.digit.in/community/threads/nothing-happens-after-assembling-pc.140161/

N
noob Original post #1
May 3, 2011 at 7:32 PM
hi
I have connected the components myself after reading the manual.

when I turn on power, nothing happens.
NO BEEP
PSU and CPU fan not spinning.no glow of LED on keyboard too.
ONL

a small LED on mobo glows. indicates that supply is OK upto motherboard.

what can be the issue?


note I have cooler master 430 n check image, I have not connected this.
Anush
Anush #2
May 3, 2011 at 8:59 PM
Check the connections on your Motherboard. Also, check the headers of the Power.
N
noob #3
May 3, 2011 at 9:06 PM
yeah...m kinda confused with headers. but will that be an issue for no PSU and CPU fan spinning ?
Anush
Anush #4
May 3, 2011 at 9:11 PM
Yes, only when the power of the Motherboard is switched on the PSU's fan will rotate.
thetechfreak
May 3, 2011 at 9:11 PM
Must be Ram problem. Use individual sticks to find which is problem.

Refit them properly.
N
noob #6
May 3, 2011 at 9:14 PM
Yes, only when the power of the Motherboard is switched on the PSU's fan will rotate.

motherboard LED glows, which means power to motherboard is OK. (correct me if m wrong)

Must be Ram problem. Use individual sticks to find which is problem.

Refit them properly.

Even there is NO BEEP SOund.
Anush
Anush #7
May 3, 2011 at 9:20 PM
Led on the Motherboard will glow. But only after you switch on Motherboards Power (via Power Button) the Motherboard starts working. So, first check the headers of the Power on the Motherboard.
thetechfreak
May 3, 2011 at 9:22 PM
Beep sound is not that important. Refit them, use individual sticks first in alternate sockets
Jaskanwar Singh
May 3, 2011 at 9:34 PM
hi
I have connected the components myself after reading the manual.

when I turn on power, nothing happens.
NO BEEP
PSU and CPU fan not spinning.no glow of LED on keyboard too.
ONL

a small LED on mobo glows. indicates that supply is OK upto motherboard.

what can be the issue?


note I have cooler master 430 n check image, I have not connected this.

in this image -

where is Sata power connector from psu to HDD???

*img163.imageshack.us/img163/3674/18872000.jpg


the thing you have connected is just sata cable to mobo and HDD?
but you missed powering HDD:grin:
N
noob #10
May 3, 2011 at 9:36 PM
it was connected , but removed b4 clicking this pic.

but FAN shld spin..right ? no matter if HDD has power or not ?
Jaskanwar Singh
May 3, 2011 at 9:41 PM
so you mean you connected it originally.

and BTW those white connectors you left unconnected are for fan. put in molex there from psu.

can you post a fully assembled pic(clear)?
thetechfreak
May 3, 2011 at 9:49 PM
Search near the cpu socket, there will be a place where you can plug in those white connectors
Jaskanwar Singh
May 3, 2011 at 9:51 PM
Search near the cpu socket, there will be a place where you can plug in those white connectors

NO. they are not to be put on mobo.
you need to plug in molex from psu in them!!!
N
noob #14
May 3, 2011 at 10:00 PM
removed 1 RAM , connected everything back including headers. have put a molex from PSU in that white pin from above image.

still the same, LED on mobo glows but no PSU and CPU fan rotating.

here is what i did

confirm the Headers plz

CM 430 has following headers, POWER , RESET , HDD , P+ and P-
here is how i added it


7-5 = RESET
3-1 = HDD LED
8-6 = POWER

now in 4 goes -P LED and in 2 goes +P LED

*www.thinkdigit.com/forum/attachments/hardware-q/4532d1304440240-nothing-happens-after-assembling-pc-l.jpg
Faun
Faun #15
May 3, 2011 at 10:08 PM
1. Motherboard fan can spin without any HDD
2. PSU fan will only spin when your motherboard kicks in the process of booting (motherboard fan starts spinning if you have connected the wire.)

Most probably you have some problem with motherboard connectors, start, restart, hdd light etc. Check if you have plugged em right.
N
noob #16
May 3, 2011 at 10:10 PM
Faun,check the image i posted in above pic and how i have connected the headers
Faun
Faun #17
May 3, 2011 at 10:11 PM
try to short the on/off terminals with a metal bolt. If it works then fine else the problem lies somewhere else.

Your connections look right, a pic of mobo with conn will be helpful.
N
noob #18
May 3, 2011 at 10:18 PM
I think PSU is faulty. how do i check it ?

****..assembling a PC is headache.
Faun
Faun #19
May 3, 2011 at 10:22 PM
Any led on mobo glowing ?
N
noob #20
May 3, 2011 at 10:22 PM
yes. it is glowing man
Anush
Anush #21
May 3, 2011 at 10:24 PM
Don't give up.
Give it a try once more. Check all the headers, power connections,etc. Once again.
N
noob #22
May 3, 2011 at 10:26 PM
have checked everything and seems fine.

I think PSU is faulty. :(
( i hope its not)
N
noob #24
May 3, 2011 at 10:40 PM
its not near RAM slot. its next to mobo headers o_Oo
and it glows.

what else i need to check ?

above CPU is a 2x2 power slot.

here i put a 4pin connector *with 2 black and 2 yellow wires. )

do u think i m putting it in wrong way or does it fits only when plugged in in a proper way ?
Faun
Faun #25
May 3, 2011 at 11:00 PM
Can you post the whole motherboard pic with the setup you have done.

The latch should match with the wedge on the 2x2 power slot.
N
noob #26
May 3, 2011 at 11:03 PM
:( , Actually, i have now packed everything. very tired. Will try fresh tomorrow morning now.
saswat23
saswat23 #27
May 3, 2011 at 11:04 PM
I think its the problem with power connector. Check it properly, if u have connected all the power connector of the power switch on the mobo.

This is the real problem with one who doesn't know assembling. Thats why i would suggest you to call an assembler and watch him while he assembles. Mean while you can clear all your doubts from him too. This way you too can learn how to assemble a system and can assemble a system of your own.
Plz dont mind. Its just my suggestion. I am suggesting u such coz if u connect cables in wrong slots then you may end up damaging your motherboard.
But if u r confident enough then u should still try.
asingh
asingh #28
May 3, 2011 at 11:05 PM
I cannot see the imageshack images at home. For some reason my ISP blocks it. Try a CMOS reset with the system powered down.

Also read this, about connectors you could have plugged the PCI.Ex16 6PIN into the EPS 12V. It happens.

It seems your CPU is not getting powered up.
N
noob #29
May 3, 2011 at 11:09 PM
I cannot see the imageshack images at home. For some reason my ISP blocks it. Try a CMOS reset with the system powered down.

Also read this, about connectors you could have plugged the PCI.Ex16 6PIN into the EPS 12V. It happens.

It seems your CPU is not getting powered up.

i have plugged this in to 2x2 power slot for CPU


check image too.
*www.thinkdigit.com/forum/attachments/hardware-q/4534d1304444345-nothing-happens-after-assembling-pc-22.jpg
N
noob #30
May 3, 2011 at 11:10 PM
:( cant think of whats the wrong thing i did.
asingh
asingh #31
May 3, 2011 at 11:17 PM
^^
Can you read on the cable for the 2x2 that it does NOT say PCIE on it...? I will have to see your images tomorrow from office.
N
noob #32
May 3, 2011 at 11:20 PM
YES. i can confirm that PSU has cables with PCIE written on it and i am NOT using any of those.

m not using iamgeshack. uploading images on digit ONLY
asingh
asingh #33
May 3, 2011 at 11:36 PM
Okay do this. Place the board on a non conductive surface...like a soft bed sheet or something. Then hook it all up.

Could be a short circuit. You places the board on the spacers right when you placed it in the cabinet.
N
noob #34
May 3, 2011 at 11:40 PM
yes. i have used stand-off and mounted mobo on that n then have plugged in screws in the holes.
asingh
asingh #35
May 3, 2011 at 11:41 PM
Do it outside the cabinet now.
N
noob #36
May 3, 2011 at 11:46 PM
As i have posted in my previous comment, i have packed everything and will try tomorrow morning.

Thanks everyone. I will post my findings in morning.

I hope it works.

@asingh : Thanks. Thats the last thing i thought of doing and will do it 1st in morning now. had a very rough day. Body needs rest.

thanks to everyone once again.
asingh
asingh #37
May 3, 2011 at 11:51 PM
^^
End of the day if it does not work out of the cabinet and you are 100% sure it is hooked up fine. You will have to take it all back to the motherboard service center. They will check it.
N
noob #38
May 3, 2011 at 11:55 PM
Lets see. Have just called a friend who know a good assembler. Will check it with him 1st or else back to PrimeABGB :(
asingh
asingh #39
May 3, 2011 at 11:57 PM
Am sure it will run out of the cabinet...!
;)
N
noob #40
May 3, 2011 at 11:59 PM
then why not in cabinet ? anything shorting ?
asingh
asingh #41
May 4, 2011 at 12:06 AM
^^
yups can happen. Try it.
Piyush
Piyush #42
May 4, 2011 at 9:36 AM
well this kinda new problem for me
even though mobo LED is glowing, i still think its the culprit here IFF you have connected all the connectors properly,RAM is fine and so is PSU
Gaurav Bhattacharjee
May 4, 2011 at 11:31 AM
Guys his problem is fixed. Here is our conversation just a while ago...

Anil Jadhav: System done :)
Anil Jadhav: All is fine now
Anil Jadhav: Cpu power was connected wrongful
Tensor: lol
Tensor: haha
Tensor: gr8
Anil Jadhav: Lpl
Anil Jadhav: Lol
Tensor: lemme post on your behalf
Anil Jadhav: Sure man
Anil Jadhav: Also post the cause
Tensor: Cpu power was connected wrongful?
Anil Jadhav: N thanks to everyone one
Tensor: this?
Anil Jadhav: Yes 2x2 cpu power cable wrongly connected
Anil Jadhav: It should match the notch
Anil Jadhav: On psu cable
Anil Jadhav: My orientation was wrong
thetechfreak
May 4, 2011 at 11:37 AM
Congrats man. I was beginning to think some component was defective.

Enjoy your new PC ! :D :))
N
noob #45
May 4, 2011 at 1:32 PM
Can you post the whole motherboard pic with the setup you have done.

The latch should match with the wedge on the 2x2 power slot.

yes. this was the issue.
thanks a lot.

after installing win7, i checked BIOS and it shows 42C temp.

is this normal for i5 2400 CPU ?
asingh
asingh #46
May 4, 2011 at 3:26 PM
^^
:) Great you solved it. Remember when ever you connect these type of connectors match the "square" and "round" notches. Will never go wrong.

Use RealTEMP and CoreTEMP to report temperatures.
N
noob #47
May 5, 2011 at 12:21 AM
^^
:) Great you solved it. Remember when ever you connect these type of connectors match the "square" and "round" notches. Will never go wrong.

Use RealTEMP and CoreTEMP to report temperatures.

see if this is normal at idle.


*www.thinkdigit.com/forum/attachments/hardware-q/4548d1304535044-nothing-happens-after-assembling-pc-capture.jpg
asingh
asingh #48
May 5, 2011 at 9:59 AM
You are fine. No worries.
N
noob #49
May 5, 2011 at 11:46 AM
You are fine. No worries.

how do i simulate load ? cauz i dont have any games now. will get games after i buy gfx card.
asingh
asingh #50
May 5, 2011 at 12:08 PM
Prime95. Intel Burn Test.

But please sit there and watch the temperatures. Just do not walk away.
T
Tech&ME #51
May 7, 2011 at 5:39 AM
Nice, that your problem got solved.

But, my suggestion would be you should not attempt to assemble a computer unless you are fully aware of what you are doing.

:-xAnd I don't understand how did you manage to put those 2x2 connectors in the opposite direction.:-x

Most of the connectors are designed to goin in a particular direction only. Also called as DIY type connectors.:lol:

Anyway, enjoy!
asingh
asingh #52
May 7, 2011 at 9:22 AM
^^
It happens. Usually people end up with damaged sockets/pins. OP was lucky. Patience.
Skud
Skud #53
May 7, 2011 at 3:35 PM
Nice, that your problem got solved.

But, my suggestion would be you should not attempt to assemble a computer unless you are fully aware of what you are doing.

But I think if you are not spending time attempting to assemble a computer, you will never come to know about its intricacies. When i bought my N620, I was very nervous to start with as I had never installed/removed a CPU cooler before let alone a huge tower one. All the time I was fearing I might break the mobo or the cooler. In the end everything was fine and I now have more confidence than before to assemble a PC on my own.

@ talktoanil

Good to know your problem is solved. BTW, nice config.