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Discussion Starter #1
So originally i was building just an HTPC/plex server mini-itx and i was going to go with an A10 kaveri build and i was going to power it with this beastly <a class="bbcode_url" href="http://www.hd-plex.com/HDPLEX-250W-Hi-Fi-DC-ATX-Power-Supply-16V-24V-Wide-Range-Voltage-Input.html" target="_blank">HD-Plex-250W</a> PSU.<br><br>
However, my kids are playing PC games on MY computer, which i don't like. So, since i havent bought anything yet, i decided the HTPC will be a game system as well. Now it will have to have a dedicated GFX card which will need more power.<br><br>
I am looking at an i3 or i5 haswell and a GTX 750ti or GTX960 both are smaller in length (under 7" long). I'm sure i could squeeze these GPU in or something under 9" into my custom case i'm using.<br>
The problem is those two GPU both recommend a PSU with 300-400Watts. now according to extreme PSU Calculator it "might" work with a 250w.<br><br>
I am very limited on space.<br>
12" x 9" x 3"<br><br>
mini-itx mobo with a noctua low profile cpu cooler thats 1.5" high<br>
2x HHD and 1 SSD<br>
and now a GFX card<br><br>
here's a pic with some paper cuti outs in it<br><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2358985/"><img alt="" class="lightbox-enabled" data-id="2358985" data-type="61" src="http://www.overclock.net/content/type/61/id/2358985/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br><br>
i either need a better PSU or a less power consuming GFX that will run games well<br><br>
TY
 

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That 250W DC-DC PSU will be perfectly capable of powering a 750Ti system (still great for games though especially at the cost), but I would not run a GTX 960 off of it, the power consumption of the 960 vs 750Ti is quite literally double.
 

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Discussion Starter #3
<div class="quote-container" data-huddler-embed="/t/1542018/mini-itx-psu-problems#post_23559360" data-huddler-embed-placeholder="false"><span>Quote:</span>
<div class="quote-block">Originally Posted by <strong>aniallation</strong> <a href="/t/1542018/mini-itx-psu-problems#post_23559360"><img alt="View Post" class="inlineimg" src="/img/forum/go_quote.gif"></a><br><br>
That 250W DC-DC PSU will be perfectly capable of powering a 750Ti system (still great for games though especially at the cost), but I would not run a GTX 960 off of it, the power consumption of the 960 vs 750Ti is quite literally double.</div>
</div>
<br>
Ok, ya i was looking at the 750ti as well, its size is the same, but I was not aware the power consumption was half!
 

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<p>gigabyte makes a low profile 750ti that doesn't have the extra 6 pin power have one in a low profile itx build and it works pretty well <img alt=":)" src="http://files.overclock.net/images/smilies/smile.gif" style=""> </p>
 

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Discussion Starter #5
how about if i swapped out that plexHD for this <a class="bbcode_url" href="http://athenapower.com/product/power-supply/flex-atx/ap-mfatx40p8" target="_blank">Athena Power 400Watt</a>, could i run that 960 you think? Athena power also makes a slim line 500watt too but the 400watt is a 80plus bronze and the 500 is not.<br>
If it does work how much heat would they produce, because the gtx 960 would have to lay flat on top of the slim line psu. I would make a bracket to lift it but your talking a couple mm of space between them.<br>
i would likely have to drop one of my HDD or i could probably look for a cpu fan that vents to the side and mount the HDD over the mobo...<br><br>
idk, what do you think?
 

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Discussion Starter #6
So I've been browsing the forums for small form factor gaming pc's, and I have come acrossed a couple builds with the HDPlex 250w and a gtx970 the thing is, they were pairing it with a 350w power brick. Now I've read you can do this but it create more heat. Is that safe for the psu. If so I'm guessing that would be enough to power my gtx960...
 

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i believe that power supply can't handle 750ti<br>
750ti needs atleast 20amp on 12v rail<br>
the 250w power supply has peak of 19a and full load of 16a on 12v rail<br>
it will probably crash if under some kind of load<br><br>
edit : learnt this in physics<br>
wattage = voltage * amp<br>
wattage on 12v rail = 12v * 19a<br>
= 228w on peak<br><br>
12v*16a<br>
=192w max<br><br>
that 192w on 12v rail will need to be shared with other 12v requiring stuffs such as cpu and motherboard<br><br>
75w can be delivered on 6 pin pci-e and 75w can be delivered on pci-e slot, so gtx 750ti can use up to 150w i believe<br>
then rest of the component has like 42w to use under load.<br><br>
if you use something like i5-4590t,<br>
you might be able to get away with it.<br><br>
i still dont recommend this setup as psu will probably degrade fast and run hot
 

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just curious....why not look into a new case? there's lots of nice looking cases that really dont break the bank. just throwing the idea out there <img alt="biggrin.gif" class="bbcode_smiley" src="http://files.overclock.net/images/smilies/biggrin.gif">
 

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I have been using a 4790k, 750ti, M.2 SSD and HDPlex PSU for a couple of months. I ran some cpu and gpu benchmarks to check maximum load wattage, altough I do not remember the results it was not even close to worrying.<br>
Obviously I would not recommed overclocking using this power supply and a little bit of air flow does not hurt.
 
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