Computer running at 65.7 dB.

JCX50 · 16 Jun 2013 at 13:40

Hello all,

I went out today to buy a dB Meter and did a few tests. My PC has been this loud since I have brought it but never took any notice because I have some headphones but it is really getting to me now.

The machine is making 2 different frequencies at different pitches. I have turned the fans down in AI Suite II but a few months ago, the program can't load a few sub programs inside AI Suite II so I can't change them again and I am not sure what will happen if I uninstall AI Suite as it runs with the BIOS.

Here is a picture of how loud places are in my PC:

The PSU looks the loudest and will be removing it out of the machine and testing it again. Really hope I don't have to buy a new EVGA Supernova 650w or I might just RMA it if that is the problem.

Inside the PC (Watch out, this image is large and have no idea how to resize it? HELP? (Sorted)):

PC Specs:
i7 3770k @ 4.1GHz
Asus P8-Z77 V-Pro with Thunderbolt
Gigabite Windforce Nvidia GTX 670 OC (SLI Soon)
32GB Corsair Dominator RAM
EVGA Supernova 650 watt
Intel RTS2011LC
LG Blu-Ray Rewriter
1TB Seagate 7200 rpm HDD
240GB Corsair GT
Lancool K62 DragonLord
Sound Proofing
3x 140mm Fans (x2 is stock with case, x1 is an Akasa red led silent fan in front)
2x 120mm CPU fans ( x1 is stock with case, x1 came with Intel LC)

Thanks

JCX50

snips86x · 16 Jun 2013 at 13:44

You can re-size in paint.

I would start by replacing all your fans for quieter ones (if you can, Bitfenix Spectra Pro's are great) and run the case fans from a fan controller. Quiet should be around 25-30db, when under load, I would expect early 40's.

JCX50 · 16 Jun 2013 at 13:46

snips86x said:
You can re-size in paint.

I would start by replacing all your fans for quieter ones and run the case fans from a fan controller. Quiet should be around 25-30db, when under load, I would expect early 40's.

Re sized in Imgur

I think that buying new fans is my last resort as the ones I want to pretty expensive.

olivier renault · 16 Jun 2013 at 14:04

What speed the fans are running? Fans on 12 volts are loud.

JCX50 · 16 Jun 2013 at 14:30

olivier renault said:
What speed the fans are running? Fans on 12 volts are loud.

Between 500-600 RPM
and CPU fan on 800-900 RPM

Randomface74 · 16 Jun 2013 at 14:34

someone else mentioned 'sound proofing' before - turned out it was foam on the front of the case blocking airflow - they ripped it out and everything was fine. ... just in case this is the same thing.

Randomface74 · 16 Jun 2013 at 14:37

also, what are your temps like? cpu/gpu/hdd

On Holiday · 16 Jun 2013 at 14:56

You can reinstall ASUS AI Suite with no bad effect on the BIOS or motherboard.

JCX50 · 16 Jun 2013 at 15:10

billysielu said:
also, what are your temps like? cpu/gpu/hdd

CPU - Idle - 35-9*
CPU - Load - 55-65*
GPU - Idle - 33-35*
GPU - Load - 60-65*
HDD - Can't find.
HDD - Can't find.

JCX50 · 16 Jun 2013 at 15:11

billysielu said:
someone else mentioned 'sound proofing' before - turned out it was foam on the front of the case blocking airflow - they ripped it out and everything was fine. ... just in case this is the same thing.

I can't see that any foam is blocking the way. TBH, it was a waste of money IMO.

JCX50 · 16 Jun 2013 at 15:12

When I stick my head inside my case, the three main components that are making some sort of noise is PSU, GPU and CPU fan (and maybe the pump)

Randomface74 · 16 Jun 2013 at 15:16

what are the measurements at front fan and rear fan if you block the fan with a pencil? (at your own risk lol)

JCX50 · 16 Jun 2013 at 15:21

billysielu said:
what are the measurements at front fan and rear fan if you block the fan with a pencil? (at your own risk lol)

I don't understand what you mean. The back fan is x2 120mm and in the front is a 140mm.

JCX50 · 16 Jun 2013 at 15:21

400th Post

Do you mean the temperatures?

Randomface74 · 16 Jun 2013 at 15:54

the noise... e.g. if you stop the fan, does the noise stop

howayman · 16 Jun 2013 at 16:03

I came across one last week which sounded like a pneumatic drill was going off. It was caused by two things daft as they are.
Firstly the hard drive wasn't 100% secure so was moving and rattling.
Secondly, one of the cables was not securely tied away from one of the fans and was catching. Sometimes, though not always, it is good to rule out the obvious first.

JCX50 · 16 Jun 2013 at 16:58

billysielu said:
the noise... e.g. if you stop the fan, does the noise stop

I don't want to burn out the motor, might do it when i do a restart.

JCX50 · 16 Jun 2013 at 16:59

howayman said:
I came across one last week which sounded like a pneumatic drill was going off. It was caused by two things daft as they are.
Firstly the hard drive wasn't 100% secure so was moving and rattling.
Secondly, one of the cables was not securely tied away from one of the fans and was catching. Sometimes, though not always, it is good to rule out the obvious first.

Had a look around, nothing is catching

Tbh, it sounds more like its just a case of a noisy fan etc. I think I just need some more fans

MonsterMoshi · 16 Jun 2013 at 17:03

You wont burn out the motor
Just put your finger over each of the fans individually slowing them down slowly until they stop
Just don't jab a pencil in there as this will likely break the fins more than anything.

Find out which fans are the loudest

Possibly worth investing in a fan controller if they are running at 12V all the time then they will likely be loud
I have a Lamptron FC2 which i like a lot. My PC runs almost silent

JCX50 · 16 Jun 2013 at 17:13

When I point the dB meter at the bottom of the rad, it gets up to 73.5 dB! I think that the pump is faulty.