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Need 400 Watt PSU

post #1 of 7
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I am putting an HD graphics card in my dad's pc because his vision is bad and he says HD is easier for him to see. I have installed GPUs in a few systems but I have always either bought a nice PSU or have had the PSU already up to the requirements of the GPU. But for some reason, the PSU requirements totally slipped my mind when I bought him the card probably because I am so used to already having the required stuff since I build my own PCs and I never have to deal with Dell. The card is a 5450 and it was only $30. I am only using it because he bought himself a huge HD monitor because, again, he is losing eyesight with diabetes.

So come to find out, his Dell PC's PSU is 300 W and the card needs 400 W. What should I do? Should I just go ahead and try it with the 300 W? If I buy one then I need one under $50 because that is our budget.

The PC is an Inspiron 620 regular (they have an Inspiron 620 S but that is not mine)
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Zen
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post #2 of 7
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371029
This should do the job.
Define
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Define
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post #3 of 7
Quote:
Originally Posted by Thready View Post

I am putting an HD graphics card in my dad's pc because his vision is bad and he says HD is easier for him to see. I have installed GPUs in a few systems but I have always either bought a nice PSU or have had the PSU already up to the requirements of the GPU. But for some reason, the PSU requirements totally slipped my mind when I bought him the card probably because I am so used to already having the required stuff since I build my own PCs and I never have to deal with Dell. The card is a 5450 and it was only $30. I am only using it because he bought himself a huge HD monitor because, again, he is losing eyesight with diabetes.

So come to find out, his Dell PC's PSU is 300 W and the card needs 400 W. What should I do? Should I just go ahead and try it with the 300 W? If I buy one then I need one under $50 because that is our budget.

The PC is an Inspiron 620 regular (they have an Inspiron 620 S but that is not mine)
There is no need to purchase a new PSU, the 5450 draws only around 25 or so watts of power. Where it says it "needs" 400 watts is just a really inflated recommendation for the entire system to cover for people who are building custom systems but buy those crappy $15 PSU's.
post #4 of 7
Quote:
Originally Posted by bR0ken_pr0Jector View Post

There is no need to purchase a new PSU, the 5450 draws only around 25 or so watts of power. Where it says it "needs" 400 watts is just a really inflated recommendation for the entire system to cover for people who are building custom systems but buy those crappy $15 PSU's.
The wattage is enough but it's a generic 300W, I wouldn't trust it with anything but the stock hardware configuration.
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Define
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post #5 of 7
Quote:
Originally Posted by AndyM95 View Post

The wattage is enough but it's a generic 300W, I wouldn't trust it with anything but the stock hardware configuration.
Dell PC's typically use Delta OEM power supplies which are of good quality. Further, while PSU's from major manufacturers seem like generic pieces of junk, they are still able to put out the required amount of power because the designs must meet their specifications in the first place. Regardless, Dell has been pretty good with power supplies and adding a 5450 should prove trivial to such a system. Even were I work we will add 6450's to slim HP desktop computers that only have a 300 watt PSU made by Lite-On (I think), and we've nary had a problem.
post #6 of 7
If it's an Inspiron, the power supply is probably not that great (worse than in the higher-end systems, which have power supplies much better than most people expect), but it's not going to be so trashy that some HD 5450 is going to make it keel over.
post #7 of 7
You should be fine with the factory PSU.

Unless it's quite a few years old, in which case you may want to into upgrading it.

You can pick up a CX430 for about $20 right now which would be plenty for your dad's rig.
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six|speed
(11 items)
 
five|speed
(14 items)
 
automatic.
(14 items)
 
CPUMotherboardGraphicsRAM
i7 4790k Gryphon Z97 Asus GTX760 OC 16GB Crucial Ballistix 
Hard DriveCoolingOSOS
2x 256GB Crucial MX100 H60 Windows 8.1 Pro OS X Yosemite 
MonitorPowerCase
2x Dell U2414H Seasonic X650 Legacy U3 
CPUMotherboardGraphicsRAM
i5 760 | 4GHz | 1.275v Gigabyte P55A-UD3 MSI NX7600GT  8GB G.Skill ECO 
Hard DriveOptical DriveCoolingOS
1TB Samsung Spinpoint F3 LG 22X DVD±R Corsair H50 OSX 10.7.3 
MonitorPowerCaseMouse
LG 23" Corsair HX620 Antec Nine-Hundred MX 518 
Mouse Pad
Thermaltake 
CPUMotherboardGraphicsRAM
X3 710 CACZC | 3.7GHz DFI LP DK 790GX-M2RS ATI Radeon HD 3300 4GB OCZ XTC @ 800MHz 2.08v 
Hard DriveOptical DriveCoolingOS
Western Digital 6400AAKS LG 22X DVD±R Xigmatek S1283 7 Professional 64-Bit 
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20" Acer AL2017 Logitech Media Corsair CX430 Thermaltake Soprano 
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