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Power supply and graphics card

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  • Power Supplies
  • Graphics Cards
  • Components
Last response: in Components
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March 16, 2012 3:40:04 PM

:hello:  i have bought an amd radeon hd 7750 , but i haven't installed it yet becuz i am afraid of my psu, i have a 450w power supply so can i run this graphics card on it?if not then tell me which one shud i buy ( tell me any cheapest one but which can run it smoothly) if my own psu will be able to run it then it will be great :D 
my pc's info. is
4GB ram
pentium D ,dual core, 3.00 GHZ
260GB HDD


Is there any possibilities of Motherboard, Processor getting damaged if any problem faced with the PSU to my graphic card?

More about : power supply graphics card

March 16, 2012 3:43:20 PM

tell me the price of india only, thanx
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a b ) Power supply
a b U Graphics card
March 16, 2012 3:51:56 PM

srajan said:
:hello:  i have bought an amd radeon hd 7750 , but i haven't installed it yet becuz i am afraid of my psu, i have a 450w power supply so can i run this graphics card on it?if not then tell me which one shud i buy ( tell me any cheapest one but which can run it smoothly) if my own psu will be able to run it then it will be great :D 
my pc's info. is
4GB ram
pentium D ,dual core, 3.00 GHZ
260GB HDD


Is there any possibilities of Motherboard, Processor getting damaged if any problem faced with the PSU to my graphic card?


Which 450w psu???

A generic 450w psu might only put out an actual 300w, while a quality 80+ certified 450w psu can put out 450w+.
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a c 1205 ) Power supply
a c 566 U Graphics card
March 16, 2012 5:19:54 PM

CaedenV said:
http://www.amd.com/us/products/desktop/graphics/7000/77...
Looks like you need a 500W power supply

Here is a list of all of the 'officially supported' power supplies: http://support.amd.com/us/certified/power-supplies/Page...

Generally any power supply which can do 500W and is 80+ Bronze or better will be able to work with this card.

I hope you realize that AMD's System Requirements tab page for the Radeon HD 7750 is wrong and is actually for the Radeon HD 7770.

The tab page specifies that the power supply should have one 75W 6-pin PCI Express power connector.

The Radeon HD 7750 doesn't have any PCI Express power connector but the Radeon HD 7770 requires one.

Also you will see:
• For an AMD CrossFire™ system, a second AMD Radeon™ HD 7770 GPU, an AMD CrossFire™ Ready motherboard and one AMD CrossFire™ Bridge Interconnect cable is required

What does a "second AMD Radeon™ HD 7770 GPU" have to do with a system that has only one Radeon HD 7750?

A minimum of a 400 Watt or greater power supply with a combined +12 Volt continuous current rating of 20 Amps or greater is what is needed.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Continuous Amperage Available on the +12V Rail(s) is the most important factor.
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March 17, 2012 5:35:40 AM

which one should i buy bro? :D 
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March 17, 2012 5:38:54 AM

i didn't get u bro... :heink:  how would i kno , how much power is my psu is puttin out? thanx :bounce: 
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a b ) Power supply
a b U Graphics card
March 17, 2012 9:05:16 AM

post your psu's current capacity on 12v rail.

7750 consumes less than 75w and thus will not need a new psu.
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March 17, 2012 2:11:53 PM

how would i check its capacity?? i kno that there is written +12v but tell me in detail so that i can tell u its capacity , BTW thanks alot friend :p 
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March 17, 2012 2:13:17 PM

there is written
+3.3v
+5v
+12v
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March 18, 2012 6:37:30 AM

14A will not be good for the GPU you plan to get. You will need 20A.
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a b ) Power supply
a b U Graphics card
March 18, 2012 10:08:44 AM

you definitely needs a new psu.
(as 95w for cpu + upto 60-75w for gpu = 155-170w, and thus your psu cannot run that for long time)
you need a 300-350w psu with around 20a current capacity at 12v.
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a c 1205 ) Power supply
a c 566 U Graphics card
March 18, 2012 5:48:11 PM


The Corsair Builder Series VS450 Power Supply (CP-9020009) entry-level 240V power supply is new and it's available in the Asian market only.

There aren't any reputable reviews of that specific power supply because of its recent introduction and limited availability.

If that power supply is able to deliver the labelled 22 Amps on its +12 Volt rail then it meets the power supply requirements for the Radeon HD 7750 and will work with your system configuration.

For a 450 Watt power supply it has a rather weak +12 Volt rail. A good reputable brand 450 Watt power supply will usually have a +12 Volt rating of 33 Amps.
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a c 243 ) Power supply
a b U Graphics card
March 18, 2012 8:53:12 PM

ko888 said:
The Corsair Builder Series VS450 Power Supply (CP-9020009) entry-level 240V power supply is new and it's available in the Asian market only.

There aren't any reputable reviews of that specific power supply because of its recent introduction and limited availability.

If that power supply is able to deliver the labelled 22 Amps on its +12 Volt rail then it meets the power supply requirements for the Radeon HD 7750 and will work with your system configuration.

For a 450 Watt power supply it has a rather weak +12 Volt rail. A good reputable brand 450 Watt power supply will usually have a +12 Volt rating of 33 Amps.

Specs show 22 amps, then 360 watts below that
Which is the typo ?
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a c 1205 ) Power supply
a c 566 U Graphics card
March 18, 2012 9:03:07 PM

delluser1 said:
Specs show 22 amps, then 360 watts below that
Which is the typo ?

I would say that the 22 Amps is the typo.

My guess is that this PSU is based on the CWT DSAII 450 that has a +12 Volt continuous current rating of 30 Amps.
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March 19, 2012 6:22:38 AM

just tell me ,will this work fine or not?
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a c 1205 ) Power supply
a c 566 U Graphics card
March 19, 2012 3:55:50 PM

srajan said:
just tell me ,will this work fine or not?

Three replies above your last one, I said it will work.
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March 20, 2012 9:38:06 AM

ok thanx alot frnd :pt1cable: 
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