Sapphire HD 7750 low profile GDDR5 + Outdated PC

Legiondaeth · Jan 5, 2014

I'll keep it short and sweet

I have two of these http://www.newegg.com/Product/Product.aspx?Item=N82E16814202002

and one of these http://www.pcrush.com/product/Desktop-Computers/635863/Lenovo-H320-40411CU-Desktop-Computer-1-x-Core-i3-i3-540-3.06GHz-Small-Form-Factor

EDIT: I originally had a 7350 low profile as an upgrade and the 7750 is the new one

The power supply says it outputs 180W on the output while the cards wants 400W

My goal is to make my system work well for the cards and i don't really have any idea on how to proceed, any help would be appreciated. I'm not averse to a new pc build, and any advice on a build for that would be appreciated.

EDIT: The Sapphire is demanding 55w for Max Power, and 400w for PSU.

ewok93 · Jan 5, 2014

You need a new PSU. What is your budget for a new build?

huilun02 · Jan 5, 2014

So you had two 7750 and 'upgraded' to a 7350 which is essentially a rebranded 5450, and none of the cards support Crossfire.

Don't know what you were thinking there.

ewok93 · Jan 5, 2014

Yeah that was an... interesting choice.

Legiondaeth · Jan 5, 2014

the 7350 was a card i got a while ago, sorry if that wasn't clear. I ordered one 7750 and i ended up getting two in the mail so i would like to run them crossfire. As far as being crossfire ready the box says
"Operation of AMD Crossfire technology in dual mode requires a second Sapphire (same card) and an AMD Crossfire Ready motherboard."

On the back of the box it says the same thing except for AMD CrossfireX. Is that not true or am I misinterpreting it?

Legiondaeth · Jan 5, 2014

As far as budget I would prefer something around $500 but am open to more.

coozie7 · Jan 5, 2014

Downside is the system motherboard only has one PCI-E slot, sorry, mate, Crossfire is a no-go.
It'll probably run the HD7750, though, the i3 540 draws about 80W at max load and the 7750 55-60, so you're just about in on the power side.
One issue you might find is the card runs hot, keep an eye on its temperature with GPUZ for a few days.

Legiondaeth · Jan 5, 2014

Yeah :/ Any advice on a new budget friendly build?

Legiondaeth · Jan 5, 2014

Would it be possible to reuse any parts from this build to if the only issue is the motherboard?

coozie7 · Jan 5, 2014

HDD, optical drive, RAM and with a little searching the CPU, but it's an older design and uses a now obsolete socket-LGA1156 so finding a replacement MB may take a while.

ewok93 · Jan 5, 2014

How much RAM did you have? This is a $500 build using your current case, harddrive, and disc drive. http://pcpartpicker.com/p/2w7p2

Legiondaeth · Jan 5, 2014

i have 6 gigs of ram installed but i use a flash drive on ready boost when it is insufficient so i wouldn't need any more. Is a Sapphire video card needed for crossfire support on my two graphics cards?

ewok93 · Jan 5, 2014

No, you can use different cards.

Legiondaeth · Jan 5, 2014

What do i need in terms of hardware for this? Do i need those exact pieces or how would i know what parts i would need to fit everything? I like to look at more than one option before i buy something just so i have a better idea of what i'm getting.

huilun02 · Jan 5, 2014

Your HD 7750 can't do Crossfire. So stick with your current PC until you want to make a new one for more graphics power.

Legiondaeth · Jan 6, 2014

Why cant it do crossfire? Everything i've read about the card says it can. What am I misreading? The back of the box its in even says its ready for that. Not trying to be disagreeable just confused. http://puu.sh/6bjzX.jpg

huilun02 · Jan 6, 2014

This is your HD 7750 right?

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202002

It has no Crossfire connectors, and in the specifications tab it says no Crossfire support.

Unless that's not your card.

Legiondaeth · Jan 6, 2014

Hold on, I ordered that from amazon (http://puu.sh/6bk0r.png) and recieved these (http://puu.sh/6bk8d.jpg), BUT if you look up the SKU number you get http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=1658&lid=1

It seems amazon sent me a better product by mistake?

ewok93 · Jan 6, 2014

They're the same thing.

Legiondaeth · Jan 6, 2014

I see that, but regardless it seems i have the compatible part, and that is what i ordered though it seems i received a different product which would explain why i posted the incorrect link.

So then misunderstanding aside, lets get back to the original question about a newer build. I'd like to make it compatible, and I waas looking at your build on the PCparts ewok, though i'm not quite sure what i'm looking at in terms of specs on the motherboard and video card. How would i know what motherboard works for the card? I couldn't find any specific way of telling what kind of motherboard is acceptable.

I'm just trying to understand what i'm buying before i do, I don't know much about PC construction.

huilun02 · Jan 6, 2014

So do you want a new PC build that's able to use both 7750, or something else?

Legiondaeth · Jan 6, 2014

Yes, I want a PC build that will be use both and hopefully not bottleneck at the processor.

huilun02 · Jan 6, 2014

Then you can go with ewok93's pcpartpicker build, except with;

A newer 990FX chipset board that supports Crossfire
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128514

No graphics card (because you will be using your 7750s)

And maybe a more well known brand of Crossfire ready PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013

Legiondaeth · Jan 6, 2014

So like this? http://pcpartpicker.com/p/KfAS
Would i need the new RAM since i have 6gb in my pc already?
Also would be looking for a 1-2tb drive, and i was thinking about a hybrid. Any recommendations for that?

huilun02 · Jan 6, 2014

You can use the 6gb of DDR3-1066 but you will get more performance out of 1600Mhz sticks.

Here's a hybrid drive

http://www.newegg.com/Product/Product.aspx?Item=N82E16822178380

Also you will need a new copy of Windows with a new motherboard. You cannot transfer your OEM copy to a new board.

Sapphire HD 7750 low profile GDDR5 + Outdated PC

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