loud sound from cabinet

Recently whenever I start my computer, a loud murmuring sound is generated and after sometimes it disappears. What is the matter? plz help

Fan. Either the CPU fan or SMPS fan or system fan.

Used to happen on my old PC.

Never bothered to check which fan caused it though. Bcoz it was branded PC AKA it sucked obviously.

Is it matter of concern ??

I don't think so.

But you can try opening cabby and cleaning out the components... that works.

rst said:
Recently whenever I start my computer, a loud murmuring sound is generated and after sometimes it disappears. What is the matter? plz help

Do you have an APC UPS?

i have numeric digital 600 ex ups (600w)

rst said:
i have numeric digital 600 ex ups (600w)

Check the fans in the cabinet, open it up, start machine and start listening with attention.

Even I sometimes hear that sort of murmuring sound. But that's not from inside of cabinet but is from my UPS.
It sounds say for around a minute or two and then stops. If this is your case, then you neednot worry. Its fine.
To confirm the sound is from UPS or not, power your PC directly from mains and see if the sound still exists.

rst said:
Is it matter of concern ??

Depends on where the sound comes from.

Some cable may be coming in contact with a fan.

Need to know the exact source of the sound.
Open up the chassis and find out the source of the sound.

1. I powered the PC directly from mains but there was no change
2. On opening the cabinet , I found that the sound was sound coming from psu.
Is it OK ??

no... check the fan..

rst said:
1. I powered the PC directly from mains but there was no change
2. On opening the cabinet , I found that the sound was sound coming from psu.
Is it OK ??

A. PSU fan is dying.
B. Capacitor whine, in any case rma the PSU(i.e claim warranty).

What psu do you have? You can use a flashlight to see he something is coming in contact with the psu fan. If its out of warrenty, you may yourself open it up and fix any such wires or rma it if it's under warrenty. But if there's nothing coming in contact with the fan then it might be a dying fan or whining capacitor. You can try to rotate the fan manually while its powered off to see if its the fan that's making the noise, else insert something like a pencile into the fan to stop it from rotating and then power on the pc, if any capacitor is broken, the noise would still come.

tkin said:
Do you have an APC UPS?

Damn it makes a lot of noise doesn't it. Good thing I use Headphones.

Sometimes if there is a loose screw of the fan then also it makes noise. In your case its the problem with your PSU, RMA if warranty is still or change it.

gameranand said:
Damn it makes a lot of noise doesn't it. Good thing I use Headphones.

Sometimes if there is a loose screw of the fan then also it makes noise. In your case its the problem with your PSU, RMA if warranty is still or change it.

A terrible whine while its charging, I can't stand it, good thing that the build quality and spike protection is great :facepalm:

my APC doesn't make any sound apart from that small high rpm fan's noise when in backup mode

rst said:
Is it OK ??

Dont turn on the system with that psu. Send it for RMA. If you were using a substandard psu, get a decent one, although you should have taken a decent one from the start.

tkin said:
A terrible whine while its charging, I can't stand it, good thing that the build quality and spike protection is great

I read somewhere that APC comes with Auto Shutdown Software and I know that APC doesn't give software in India but can I use that software by downloading it ??

gameranand said:
I read somewhere that APC comes with Auto Shutdown Software and I know that APC doesn't give software in India but can I use that software by downloading it ??

Only if you have that port, check the back of the SMPS, if it has an oversized ethernet like port and a proprietary cable then you can just plug it in, no software needed, Windows all automatically detect and configure it.

tkin said:
Only if you have that port, check the back of the SMPS, if it has an oversized ethernet like port and a proprietary cable then you can just plug it in, no software needed, Windows all automatically detect and configure it.

Nope it doesn't have that,

1. I separated psu completely from the cpu

2. Then I did nothing but again connnected it to the cpu.

3. Now there is no noise from the psu

I think problem was due to some loose connection, may be in screw of psu or connection of its wire with motherboard .

Problem is solved atleast for now.

you are getting a new GPU so why not change the PSiu as well - that 400W PSU may not be enough.

Yeah i am thinking about it.
Without graphic card temp 1 is 49 to 51 (by speed fan software)
1. Is this normal temperature without graphic card ?

^^ What temperature it is? Is it idle temperature or load temperature?

tkin said:
A terrible whine while its charging, I can't stand it, good thing that the build quality and spike protection is great

no sound from my APC...

anirbandd said:
no sound from my APC...

The cooling fan only comes with 1kva or higher UPS.

it is idle temperature (49 to 51)
Also I have no graphic card

^^ of what, CPU ??

AMD Athlon II X4 635 Processor 2.9 GHz
Asus M5A78L-MLE mother board ddr3

during idle mode temperature of cpu is (50 to 52.1)

check whether all the fans in your system are operating properly or not-its quite possible that some stray wire or cable may be obstructing one of their movements,thereby causing the noise.

rst said:
AMD Athlon II X4 635 Processor 2.9 GHz
Asus M5A78L-MLE mother board ddr3

during idle mode temperature of cpu is (50 to 52.1)

idle should be under 40c .. anyway, make sure you installed the cpu cooler properly with some good TiM and post your cpu vcore.

CPU vcore is 1.39 V

TiM is 6 months old ( I will apply it if same situation goes on)

lower the vcore to 1.3v.

vcore

1) 1.856 V (according to CPUZ)
2) 1.86 V (according to everest ultimate edition 5)
3) 1.86 V (according to speed fan 4.33)
4) 1.39 V (according to CPUID hardware monitor PRO)

conclusion :- CPUID hardware monitor PRO is giving fake reading

I don't know how to change vcore through BIOS
plz help

I tried to change vcore through BIOS

1. bios > advanced > jumperfree configuration > CPU over voltage
2. CPU over voltage was " auto"
min = 0.3000V
max= by cpu

3. I tried to change to "auto" by pressing "+"
it showed increase in the number
At "1.27500 V " colur changes to yellow from black

Is this the way to change vcore ??
plz help

I have set Vcore to 1.4000 V

but still i am getting

1) 1.856 V (according to CPUZ)
2) 1.86 V (according to everest ultimate edition 5)
3) 1.86 V (according to speed fan 4.33)
4) 1.39 V (according to CPUID hardware monitor PRO)

plz help ??

1.856V cpu vcore !!! you should not go anything over 1.4v with stock cooler where 1.3v is enough. Anyway, your bios lso has a system monitoring feature where it shows cpu vcore, temp, Ram voilt etc. - do check their for proper readings and if possible post the link of your mobo manual.

1. I saw the HW monitor configuration in bios
vcore voltage = 1.392 V

2. I also changed vcore voltage to 1.300 V

Now cpu temperature is 42 C
there is 8 C reduction in temperature

conclusion :- Always judge your vcore, system temperature etc in "HW monitor configuration in bios"
Also "CPUID hardware monitor PRO" is the best cpu monitoring software

"Topgear " , thanks a lot for your help

link for my motherboard manual, *dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A78L-M_LE/E8059_M5A78L-M_Series.pdf

------------------------------------------------------
Is 1.3 V vcore is sufficient for playing games like battle field 3 with 7750 graphic card

cool

and now the idle cpu temp is 42c, right ? what about load temp - play some games like BFBC2 to find out.

BTW, did you get the gfx card ?

Today I cleaned cpu and psu fan
This further reduced cpu temperature to 35 C
Now atlast idle temperature is below 40 C

-------------------------------------------------------------
currently I donot have any graphic card
there is amd 3100 graphic card in my motherboard(inbuilt)
----------------------------------------------------------------
I played BFBC2 in 1024X768 resolution and low setting
the load temperature was 53C
It showed 10 fps
----------------------------------------------------------------
So i want to buy amd 7750 ddr5 (atmost for 6.5k)
Hope it will play crysis 3 (low-mid configuration)

yo, now the load temp looks good and yes, HD7750 will run CR3 for sure.

go for 7770 @8k.. it a huge improvement over the 7750.. with the 7770 on 1024x768 you will be able to play cry3/gta5 with almost all eye candy enabled. i used a 7770 on 1024x768 for 3 months

yep, getting HD7770 makes a lot more sense and stick with brands like Asus, MSI,Sapphire.

1. what about gigabyte 7750 or 7770 ??
2. What will happen to my inbult amd 3100 if I install 7750 or 7770 ?

rst said:
1. what about gigabyte 7750 or 7770 ??
2. What will happen to my inbult amd 3100 if I install 7750 or 7770 ?

Avoid Gigabyte cards. Of late I saw many complaints about Gigabye's RMA policy.

for the 7770, stick to MSI. the 2PM1GD5 or Power Edition are ftw cards

rst said:
1. what about gigabyte 7750 or 7770 ??
2. What will happen to my inbult amd 3100 if I install 7750 or 7770 ?

2. the inbuilt 3100 will be auto disabled.

today i bought power color 7750 graphic card
After installation of 7750 graphic card
idle cpu temperature is 40 C
load cpu temperature is 66 C

Is it normal ??

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk + 1 gb external hd(W.D)
||Necola NPS-1004ST (450 W)

Powercolor 7750?
For how much?

power color 7750 1 GB ddr5 for rs 6600

rst said:
power color 7750 1 GB ddr5 for rs 6600

Ok, that's a descent price!!

d6bmg said:
Ok, that's a descent price!!

and what about temperature ??

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk ||Necola NPS-1004ST (450 W)
||epson TX121 printer||window 7 ultimate (32bits)

cpu load temp is on the higher side though Ok .. ramp up the cpu fan speed by disabling smart cpu fan control in bios but this may be noisy.

may be due to degraded TIM. remount the proccy with good quality TIM..

@ OP - reagding your query about max cpu load temp -- well, there's some confusion but 60c/65c/ mostly considered to be max safe load temp for AMD cpus.

rst said:
today i bought power color 7750 graphic card
After installation of 7750 graphic card
idle cpu temperature is 40 C
load cpu temperature is 66 C
View attachment 9168

Is it normal ??

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk + 1 gb external hd(W.D)
||Necola NPS-1004ST (450 W)

It is normal temp but if it exceeds 79 C then problems may arise like artifacts likewise.

bssunil said:
It is normal temp but if it exceeds 79 C then problems may arise like artifacts likewise.

if max. load temperature is 79 C,then load temperature is not point of worry.

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk ||Necola NPS-1004ST (450 W)
||epson TX121 printer||window 8 pro (64bits)

bssunil said:
It is normal temp but if it exceeds 79 C then problems may arise like artifacts likewise.

what ! 79c for the cpu ??

I have 7750 graphic card
But system information shows" 7700 series"
Is it ok ??

Even device manager is showing the same

Is there any software which show whole information ??(everest ultimate edition showing the same)

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk
||Necola NPS-1004ST (450 W) ||epson TX121 printer||window 8 pro (64 bits) + window 7 ultimate (32bits)

rst said:
I have 7750 graphic card
But system information shows" 7700 series"
Is it ok ??
View attachment 9274

Even device manager is showing the same
View attachment 9275

Is there any software which show whole information ??(everest ultimate edition showing the same)

AMD Athlon II X4 635 ||Asus M5A78L-MLE ||aoc led - e2043fsk (20")||power color 7750 ||4.00 GB ram ddr3 ||500 gb hard disk
||Necola NPS-1004ST (450 W) ||epson TX121 printer||window 8 pro (64 bits) + window 7 ultimate (32bits)

Absolutely fine.

you GPU is of the 7700 series. if you had a 7850, then it'd be 7800 series.

its showing fine..

PS: Just put your rig into your signature..

thanks,I got it