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what can I do within 150w?

crazymonkeyzero

crazymonkeyzero

Senior member
Pretty much I'm trying to find out what the best setup I could run using a 150w psu which comes with the mini itx case Antec ISK300-150.

I wanted to use the Sapphire Radeon HD 7750 and a 35w i3 which I am confident will work, but want to know if I could potentially get an i7 3770S(65W) in there as well? This build was mosting going to be for some light gaming, and office work.

This is the tentative part list, there will be no mechanical hard drive.

Samsung 840 SSD 250 gb
Corsair Vengeance 8gb (2x4gb) ddr3 memory
Gigabyte z77N WIFI mini itx board
Slimline Bluray Burner
Sapphire Radeon HD 7750

Thanks for the feedback.
 
That would be cutting it pretty darn close.
65w + 75w =140w max theoretical just from gpu + cpu

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most reviews put 7750 load at around 50-60w typical load
http://www.legitreviews.com/article/1854/14/

samsung 840 250gb ssd: 4-5w
mobo: not sure (closest link i could find is this http://us.hardware.info/reviews/331...--part-3-intel-socket-1155-energy-consumption. It doesn't help that much, since it's total system draw with 3770k)
bluray: varies, 5-10w typically
ram: ~1-3w (link is for 1.35v claiming 47% power savings :S)

should be possible, if you won't be fully loading all the cores.
assuming i7 3770s power consumption 40-55w typical load
http://forums.anandtech.com/showthread.php?t=2250795

which puts you at 133w not counting mobo draw, 115w of it on the 12v

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the psu is rated for 10A on the 12v rail (or 120w max from cpu +gpu)
http://www.antec.com/pdf/manuals/ISK 300-150_Manual_EN.pdf

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maybe you should try picking up an i7 3770t (45w TDP) to give you a bit more leeway
http://www.sabrepc.com/p-2910-intel...i7-3770t-four-core-25ghz-socket-1155-cpu.aspx
 
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Could I theoretically buy a chip such as an i5 3570 and under volt it/underclock it so it would run at around 35-45w. This way I could boot up the computer for the first time with just integrated graphics HD4000, and make the required voltage changes in the bios before installing the 7750.
 
crazymonkeyzero said:
Could I theoretically buy a chip such as an i5 3570 and under volt it/underclock it so it would run at around 35-45w. This way I could boot up the computer for the first time with just integrated graphics HD4000, and make the required voltage changes in the bios before installing the 7750.
Click to expand...

Yes. You also could get a "K" chip and underclock that chip to your desired settings.
 
I had an i3 550 and a radeon 5670 in the isk 300-150. Worked great. Given that the tdp is lower than the 5670 it should work fine.

Be warned, the limiting factor is the gpus heatsink height. Should be able to find the dimensions on hardforums ssf forum since I posted some dimensions.
 
If you're taking it easy you should be fine, but it's definitely cutting it close. I'd personally tone something (probably the CPU) down.
 
I think a dual core should be plenty. No need to go i7.
Especially with that low-spec GPU.
Consider the 35W i5 maybe? Expensive, for what it is, but you get hyper-threading.
Alternatively, did you consider trinity? How much faster is a 7750 compared to an A10 APU?
 
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