Will ATI RADEON HD 5450 low profile work with a 220w power supply?

KingJuliusTheGreat · Dec 25, 2014

I've read in the official ATI page that this card requires a 400w or greater PSU. But i've also read threads in which people say that it works with as low as 180w. Now, this card does not consume more Than 20 watts, so why exactly does it say in the page that it requires 400watts ? I'm gonna post my PC specs If it helps at all

Model: HP Pavilion Slimline s5100la

Processor: Intel Pentium dual core e5200 2.5ghz

2GB RAM

Current ( integrated) graphics card: Intel GMA 3100

PSU: 220 watts

Yes, I know that this card is far from being one of the best. Yes, i know that my CPU is a slimtower, and I can't find any PSU with anything more Than 300w. Please people, that is NOT what I'm asking. All I want to know is: Will it work?

PLEASE ENLIGHTEN ME!!!

terry4536 · Dec 25, 2014

That power supply is insufficient for nearly any graphics card. The HD 5450 requires a 400 watt power supply. The GTX 750 series of graphics cards are among the most efficient cards. That would be my suggestion. Otherwise a new power supply is in order.

http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=316&
lid=1#

Kraszmyl · Dec 25, 2014

Yes it will work fine.

The reason that companies put the overkill specs is so that lets say you put a gtx980 in a computer with a 400w power supply. If it is a good quality power supply with decent rails it will work fine , if it is a bad quality one it wont work period despite them both being 400w. This gives them deniability of support and also by grossly inflating the minimum they ensure that the official minimum will most likely work fine because the higher wattage low quality power supplies will at least be able to match the lower wattage high quality ones where it is needed to run the gpu.

@ terry

Dude what sort of crack are you on to say a card that eats between 10-25w wont work and then you go around and suggest one that eats up to 60w as one that would work? Also if its soooo insufficient how do all of these matx and itx systems get gtx760s , titans, and r9 series cards in systems with sub 400w power supplies?

terry4536 · Dec 25, 2014

If you read these forums at all, you will know that one of the very first questions that we ask on graphics card problems is what is the power supply and wattage. If you disregard the system requirements, then you are looking for trouble.

KingJuliusTheGreat · Dec 25, 2014

Kraszmyl :

Yes it will work fine.

The reason that companies put the overkill specs is so that lets say you put a gtx980 in a computer with a 400w power supply. If it is a good quality power supply with decent rails it will work fine , if it is a bad quality one it wont work period despite them both being 400w. This gives them deniability of support and also by grossly inflating the minimum they ensure that the official minimum will most likely work fine because the higher wattage low quality power supplies will at least be able to match the lower wattage high quality ones where it is needed to run the gpu.

@ terry

Dude what sort of crack are you on to say a card that eats between 10-25w wont work and then you go around and suggest one that eats up to 60w as one that would work? Also if its soooo insufficient how do all of these matx and itx systems get gtx760s , titans, and r9 series cards in systems with sub 400w power supplies?

Are you sure? I don't have to buy another PSU?

Kraszmyl · Dec 28, 2014

KingJuliusTheGreat :

Very there is little to no reason it shouldn't work. If you had lets say an old p-d 3.4ghz or something with multiple hard drives then maybe you could be stressing that power supply. But that is unlikely and no modern cpu past the netburst era except some of the FX chips would eat enough power to stress it combined with the rest of the power draw of the rest of the system.

If you have a 220w psu im willing to bet you have either an Athlon x2 or a c2d/I series based Pentium and all of these cpus are in the low draw brackets.

Quick example

Alienware x51 with an i5 quad + 16g memory + traditional rotational hard drive + a gtx650 ships with a 240w psu and that is sufficient for it. I some how doubt your setup is pulling more than that system.

terry4536 · Dec 28, 2014

That isn't a fair comparison. The Alienware X51 is a gaming desktop, and the OP's PC is a workstation. The Alienware X51 comes with a very efficient GTX750Ti GPU (without a specified power supply). The HP Pavilion Slimline s5100la Desktop uses integrated graphics. And if you configure the Dell with more powerful graphics, it would probably require an upgraded PSU before you completed the order.

The AMD HD5450 has a system requirement of 400 watts simply because they are not very efficient cards. Under-powering the graphics card is simply going to stress the card.

Dude what sort of crack are you on to say a card that eats between 10-25w wont work and then you go around and suggest one that eats up to 60w as one that would work? Also if its soooo insufficient how do all of these matx and itx systems get gtx760s , titans, and r9 series cards in systems with sub 400w power supplies?

They don't. A Titan on a sub 400 Watt power supply wouldn't even have the extra power cables required for the card!

Even the GTX 760 requires a 500 watt PSU and a extra 6-pin & 8-pin power cables.

500 watt or greater power supply with a minimum of 30 amps on the +12 volt rail.

PCI Express, PCI Express 2.0 or PCI Express 3.0 compliant motherboard with one graphics slot.

One 8-pin PCI Express power connector or two available 6-pin PCI Express power connectors and one 6-pin PCI Express power connector or two available hard disk power connectors.

http://www.dell.com/us/p/alienware-x51-r2/pd?oc=dpcwxy02s&model_id=alienware-x51-r2

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130949&cm_re=gtx_760-_-14-130-949-_-Product

terry4536 · Dec 28, 2014

I found this upgrade for your HP to 480 WATTS FOR $37. But a better quality PSU is available in the $50 - 75 neighborhood. And it would allow a wider range of GPU's.

http://www.bonanza.com/listings/New-PC-Power-Supply-Upgrade-for-HP-Pavilion-s5100la-Slimline-SFF-Computer/168676935?gpid=18283950120&gpkwd=&goog_pla=1&gclid=Cj0KEQiAzvmkBRCm3ZbV-4-hwrYBEiQAgLOw62Zk2ITcEpNqgisdEC7Sr9pI0FiFrEwT3KudIRTgqz4aAnsC8P8HAQ

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Will ATI RADEON HD 5450 low profile work with a 220w power supply?

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