Go Back   Computer Forums > General Computing > Hardware
Click Here to Login
Join Computer forums Today


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-23-2010, 10:47 AM   #1
Beta Member
 
Join Date: Oct 2010
Posts: 3
Question Changing the power supply

Hey guys, im new here.. Hope you guys could help me a little here..
I'm want to change my power supply from a 300watt to a 480 (or 450) watt power supply.

I've bought a new GPU, which needs a 430+ watt power supply. (Its an ATI HD 4670 with 1GB DDR3).
Since the original power supply is only 300watt, will it be ok to change it to a more powerfull one? And if it is, will my computer work any better? (even if only sightly..)
What i'm asking is.. Is is safe to put a more powerfull power supply? And, will it be noticeable in my computer's performance?

If it matters, its a HP computer, its not custom built...
__________________

undefeated56 is offline   Reply With Quote
Old 10-24-2010, 01:56 AM   #2
In Runtime
 
darroll's Avatar
 
Join Date: Apr 2008
Posts: 242
Default Re: Changing the power supply

Check and see if it needs a HP power supply.
__________________

darroll is offline   Reply With Quote
Old 10-24-2010, 09:01 AM   #3
Fully Optimized
 
Join Date: Dec 2007
Location: England
Posts: 3,390
Default Re: Changing the power supply

You can put a 1200W PSU in your machine if you really, really wanted to. It's not detrimental to your system in any way but you'll see it's effect on your electricity bill. Putting in a larger PSU enables you to run more current hungry motherboard peripherals and a decent 450W-500W PSU should do you fine.

However, increasing the size of the PSU alone will not increase the performance of the computer but will ensure enough current is supplied to the necessary parts and a reliable PSU will make for a more reliable computer.
__________________
Lenovo ThinkPad T410 - i7 620M - 8GB RAM - Crucial M4 120GB SSD - 250GB 2nd drive - Intel HD 3000 GPU - 1440x900 - Windows 7/8
REMENIZ Computers
Remeniz is offline   Reply With Quote
Old 10-28-2010, 12:38 AM   #4
In Runtime
 
Join Date: Feb 2009
Posts: 194
Default Re: Changing the power supply

What is your budget for a new psu? Also, can you give the model number of the HP so we can see if it has an ATX psu in it?
familyman is offline   Reply With Quote
Old 10-28-2010, 06:59 AM   #5
BSOD
 
Join Date: Dec 2009
Posts: 100
Default Re: Changing the power supply

It would only increase the electricity bill due to what the hardware consumes in Watts/amps only and no more.
officemanager is offline   Reply With Quote
Old 10-28-2010, 01:23 PM   #6
Fully Optimized
 
Indigo's Avatar
 
Join Date: Jul 2010
Location: USA
Posts: 1,866
Default Re: Changing the power supply

Quote:
Originally Posted by officemanager View Post
It would only increase the electricity bill due to what the hardware consumes in Watts/amps only and no more.
Yup. buying a larger power supply doesn't mean you'll have a higher power bill. Actually it could almost go the other way - a good high quality PSU can consume less than a "cheap" PSU from a no-name vendor.
Indigo is offline   Reply With Quote
Old 10-28-2010, 06:41 PM   #7
Daemon Poster
 
GibsonSGKing's Avatar
 
Join Date: Jan 2009
Posts: 1,384
Default Re: Changing the power supply

Quote:
Originally Posted by og View Post
Yup. buying a larger power supply doesn't mean you'll have a higher power bill. Actually it could almost go the other way - a good high quality PSU can consume less than a "cheap" PSU from a no-name vendor.
Exactly what I was about to say. Usually (at least from my experience) a larger PSU will be more efficient, and run cooler, since it's not being pushed as hard to run your components.
__________________
C2Q Q9400 @ 3.2GHZ | Zalman 9900 LED HeatSink | Asus P5E3 Pro Motherboard | CM Storm Scout case | 1TB Caviar Black HDD | GTX760 4GB | 23" Acer [1920x1080] & 21.6" Asus [1920x1080] monitors
GibsonSGKing is offline   Reply With Quote
Old 11-05-2010, 02:51 PM   #8
Beta Member
 
Join Date: Oct 2010
Posts: 3
Default Re: Changing the power supply

I finally bought a new PSU, it's a 500 watt psu. After changing the old one, as soon as i started the computer, all the fans went crazy, they were running at maybe 2 times faster than usual, and the screen stays black all the time. After removing the new PSU and re-installing the old one, the problem persisted, and this time the GPU's fan wouldn't even spin...
I'm really worried since the warranty is over.. Is it bad?.. Is there any way to fix it?
Hope to have a reply soon.. Thank you..
undefeated56 is offline   Reply With Quote
Old 11-05-2010, 02:58 PM   #9
Fully Optimized
 
jmacavali's Avatar
 
Join Date: Jun 2009
Posts: 4,867
Default Re: Changing the power supply

Usually when I run into this situation I assume it's the motherboard.

Take out the new video card and see if it will boot without it. Also make sure your RAM is still seated properly. Make sure you are remember to plug in all the Motherboard plugs (sometimes there are 2 - the main one and a small 4 pin one).
__________________
****************************************
Don't take life too seriously -- no one gets out alive. Plus, who wants to arrive to the hereafter in pristine condition wearing a suit and tie?
I want to slide in sideways, worn out, used up, hair a mess, clothes tattered, & screaming, "Whooo! What a ride!"
****************************************
jmacavali is offline   Reply With Quote
Old 11-05-2010, 03:13 PM   #10
Beta Member
 
Join Date: Oct 2010
Posts: 3
Default Re: Changing the power supply

I've removed the gpu, and the fans still spin really fast...And it doesn't seem like it's booting.. Last time something like this happened it was the BIOS.. Which needed to be changed.. But that time i sent the pc to HP, 'cause i still had the warranty.. Is it probable to be the BIOS again? =/
__________________

undefeated56 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 04:16 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0