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Windows 7: strange noise and burning smell from PSU

27 Feb 2013   #1
Chalky Emultion

 
strange noise and burning smell from PSU

Hi,
I have a backup pc with the following hardware:

CPU: Intel Core 2 Duo E6300 @3,0 GHz
RAM: 4,5 GB DDR2 Dual Channel @856 MHz
Motherboard: Asus P5Q Pro
GPU: Ati Radeon HD 4870 X2 @800MHz/1000MHz
HDD: 200GB @7200rpm
2 case fans, power leds, 2xDVDs ROM

Powered by a NILOX 600W PSU.

Since I changed my GPU (from a GeForce GTS 450 to an HD 4870 X2), I noticed that my PSU makes a strange noise (similar to an electrical "beep") when i use games or other applications which make the GPU work at high performance.

Today I launched GPU-Z's render test in fullscreen mode, and after 5 minutes, hearing the "beep" from the PSU, I also noticed that it was really hot and I noticed a light burning smell. Immediatly I turned off my pc.

What should I do now? Should I replace the PSU with a new and better one? I don't want to burn my pc
(the PSU has got only 22A at 12V)


My System SpecsSystem Spec
.
27 Feb 2013   #2
Erick Aguilar

Windows 7 professional X64
 
 

That PSU is horrible.. no offense. I would have -never- trusted that GPU to such a weak PSU. I was barely able to find information about it online.

Change it asap.
My System SpecsSystem Spec
27 Feb 2013   #3
Chalky Emultion

 

Quote   Quote: Originally Posted by Erick Aguilar View Post
That PSU is horrible.. no offense. I would have -never- trusted that GPU to such a weak PSU. I was barely able to find information about it online.

Change it asap.
Yeah, I noticed it now.. It should explain also the high CPU and GPU temps in idle...
Please can you suggest me a good PSU for this pc?
My System SpecsSystem Spec
.

27 Feb 2013   #4
Erick Aguilar

Windows 7 professional X64
 
 

Quote   Quote: Originally Posted by Dorado View Post
Quote   Quote: Originally Posted by Erick Aguilar View Post
That PSU is horrible.. no offense. I would have -never- trusted that GPU to such a weak PSU. I was barely able to find information about it online.

Change it asap.
Yeah, I noticed it now.. It should explain also the high CPU and GPU temps in idle...
Please can you suggest me a good PSU for this pc?
Personally I like seasonic.. their 560W model is great. Modular and gold certified.
But I believe even a Cooler Mater 80+ bronze PSU would work for you if you do not want to spend as much.
The silent series is really good for a budget from what I've read.
My System SpecsSystem Spec
27 Feb 2013   #5
Chalky Emultion

 

Quote   Quote: Originally Posted by Erick Aguilar View Post
Quote   Quote: Originally Posted by Dorado View Post
Quote   Quote: Originally Posted by Erick Aguilar View Post
That PSU is horrible.. no offense. I would have -never- trusted that GPU to such a weak PSU. I was barely able to find information about it online.

Change it asap.
Yeah, I noticed it now.. It should explain also the high CPU and GPU temps in idle...
Please can you suggest me a good PSU for this pc?
Personally I like seasonic.. their 560W model is great. Modular and gold certified.
But I believe even a Cooler Mater 80+ bronze PSU would work for you if you do not want to spend as much.
The silent series is really good for a budget from what I've read.
ok, so how many Watts and how many Amp i need on 12V?
My System SpecsSystem Spec
27 Feb 2013   #6
Erick Aguilar

Windows 7 professional X64
 
 

Quote   Quote: Originally Posted by Dorado View Post
Quote   Quote: Originally Posted by Erick Aguilar View Post
Quote   Quote: Originally Posted by Dorado View Post

Yeah, I noticed it now.. It should explain also the high CPU and GPU temps in idle...
Please can you suggest me a good PSU for this pc?
Personally I like seasonic.. their 560W model is great. Modular and gold certified.
But I believe even a Cooler Mater 80+ bronze PSU would work for you if you do not want to spend as much.
The silent series is really good for a budget from what I've read.
ok, so how many Watts and how many Amp i need on 12V?
You would need to calculate yourself.
There are plenty of wattage calculators online. But it should not be more than 500W with a REPUTABLE PSU.
My System SpecsSystem Spec
27 Feb 2013   #7
Chalky Emultion

 

Ok, thank you very much!
My System SpecsSystem Spec
27 Feb 2013   #8
bobkn

Windows 7 Pro X64 SP1
 
 

The 4870 X2 uses a 6 pin PCI-E power connector plus an 8 pin one. That makes it a high-powered card (as much as 300W, all by itself).

Sapphire recommends at least a 650W PSU:

SAPPHIRE ATOMIC HD 4870 X2 2G GDDR5 PCI-E#

They don't list a +12V current requirement, but I'd guess you'd want at least 40A. (A Corsair HX650 is rated at 54A at +12V.)

Is that Nilox PSU really rated at 22A at +12V? There are 300W power supplies that are rated above that. It would still be less than great if it has two +12V rails, with 22A each.
My System SpecsSystem Spec
27 Feb 2013   #9
kbrady1979

Windows 7 Professional 64bit SP1
 
 

First of all, let me ask..........do you actually need that graphics card in a backup computer? If it is absolutely necessary, I would go with this Corsair AX750 or the SeaSonic X750 equivalent, whichever you can get cheaper.
My System SpecsSystem Spec
27 Feb 2013   #10
Chalky Emultion

 

The PSU has got 2 12V rails...

And yes, i need a fast GPU because i also use this pc for LAN party, with graphics demanding games...
My System SpecsSystem Spec
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 strange noise and burning smell from PSU




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