my pc sounds when i start it

[kumarsaurabhraj]

Hello! I recently just hooked up my haswell build. Here are my specs
intel core i7 4770 processor, asrock z87 pro 4 mobo n Corsair XMS3 1600MHz cl 11 24GB(3*8GB) ram and a 400 watt psu. When i start my pc it sounds like Hmmmmmm.. and after some it automatically gets away. This is my second building with the same cabinet n hdd. In the previous build also this was a issue but not as significant and frequent as i am facing now. I have checked all the cables n all, nothing is colliding with the fans.

Please help me out.

Regards.

 

[kumarsaurabhraj]

Hi, what PSU is that? you should really try replacing the PSU with a good quality 550w unit.

I have a 400W Psu of a local company iball. I am on a tight budget so it will be very hard for me to replace the psu with a new one. Are you really sure that replacing the psu will solve my problem (if u r then i will try to replace it soon)? Do some malfunction of HDD etc can also cause this problem?.. I plan to replace my psu with a quality 750 or 650 watts cooler master or corsair psu but my pc might not need that much power. But i am ready to pay the extra bucks for more power because in future i plan to install a high end graphics card (GTX 770 or Titan) (not in SLI). So for the meanwhile will installing a psu with more wattage than my pc needs cause any harm to my pc?..

 

[kumarsaurabhraj]

It's highly likely that the PSU is at fault, you should replace that PSU as soon as possible, you can't run high end expensive hardware like that with a cheap piece of crap PSU like that, you gonna risk damaging all of your components doing that. When building a PC the first and most important thing to do is to buy a PSU first, of good quality. Have a look at the following:

http://www.flipkart.com/seasonic-s12ii-620-watts-psu/p/itmd5xz46hjzzrax?pid=PSUD5XZ4GCGRASAY&ref=1d9337c6-38e1-44fd-ab64-a5fd48c3b436
http://www.flipkart.com/corsair-cmpsu-750txv2uk-750-watts-psu/p/itmd5xz5pkgddqmw?pid=PSUD5XZ4YUHYSNNC&ref=66a2696e-f717-485f-a796-007848d6991e

How can i detect if it already has caused some harm to my hardware?

I have a very old kind of cabby which has a upper psu mounting but now days the new psus are designed for lower cabby mounting so will i be able to install the psus in my cabby?..

How are these?
http://www.flipkart.com/corsair-vs650-650-watt-psu/p/itmdg36xznfnesye?pid=PSUDG347RBUYNCFK&icmpid=reco_pp_cross_psu_8

http://www.flipkart.com/cooler-master-gx-750-watts-psu/p/itmd5xz5qehdzgwf?pid=PSUD5XZ4REGHWYQE&otracker=from-search&srno=t_8&query=psu&ref=6017b52c-9898-4211-9554-fa042b575280