Overclock.net banner

1 - 13 of 13 Posts

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #1
OK, I am definitely going with a PC Power & Cooling PSU next time. Question is, will a Silencer 610W be enough for a Crossfire and quad-core rig some day down the road? Or would I need to get the 750W version? I really don't want to have to get another PSU for a long time if I spend this much on one.<br />
<br />
Thanks,<br />
pow3rtr1p
 

·
Premium Member
Joined
·
6,588 Posts
<div style="margin:20px; margin-top:5px; ">
<div class="smallfont" style="margin-bottom:2px">Quote:</div>
<table cellpadding="6" cellspacing="0" border="0" width="99%">
<tr>
<td class="alt2" style="border:1px inset">

<div>
Originally Posted by <strong>pow3rtr1p</strong>
<a href="showthread.php?s=5f012238fa36186cbb85825ea8d4fba8&p=1389756#post1389756" rel="nofollow"><img class="inlineimg" src="http://static.overclock.net//img/forum/go_quote.gif" border="0" alt="View Post" /></a>
</div>
<div style="font-style:italic">OK, I am definitely going with a PC Power & Cooling PSU next time. Question is, will a Silencer 610W be enough for a Crossfire and quad-core rig some day down the road? Or would I need to get the 750W version? I really don't want to have to get another PSU for a long time if I spend this much on one.<br />
<br />
Thanks,<br />
pow3rtr1p</div>

</td>
</tr>
</table>
</div>Its really about the amps on the 12v rail. <br />
<br />
The PC P&c 610w will be enough to handle the rig.
 

·
Registered
Joined
·
1,150 Posts
I just got my 750 today and I love it, 60 amps on the 12 volt rail.
 

·
Premium Member
Joined
·
24,372 Posts
Down the road... If you talk about Crossfire DX10 cards, I don't think even the 750W version is up to that task (if rumors about 250W per card are true)<br />
<br />
Those two cards alone with draw like 21A each, and the Kentsfield about 10A (at stock - a lot more when overclocked). Thus, that totals already 52A. Add come harddrives, the motherboard itself, Optical stuff, a soundcard maybe, and fans, and you'll easily hit the 60A max of the 750W unit<br />
<br />
What could be a solution is getting the 610W version, which should be plenty for a single DX10 card and a Kentsfield rig, and then add this <a href="http://www.newegg.com/Product/Product.asp?Item=N82E16817104019" target="_blank">FSP Group (Fortron Source) BoosterX 3, 300W</a> ($84.99) for the second video card.<br />
<br />
If you don't plan DX10, then the 610W version is enough.
 

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #5
Well I'm sure I'll eventually get DX10 (just to play the DX10-only games, really) but probably not Crossfire it.<br />
<br />
So the wattage isn't as important as 12V Rails? It has 49A 12V rail, which I assumed would be enough for most things, but apparently not?<br />
<br />
How about Crossfire my current card, 1 optical drive, 2 HDDs, and an E6400?
 

·
Premium Member
Joined
·
24,372 Posts
As I said, if you don't plan DX10, the 610W version (49A) is enough.<br />
<br />
My FSP delivers 50A and runs my rig effortlessly....
 
  • Rep+
Reactions: pow3rtr1p

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #7
I just realized the 700W GameXStream puts out more Amps for cheaper... I'm going that route for sure <img src="/images/smilies/biggrin.gif" border="0" alt="" title="Big Grin" class="inlineimg" />
 

·
Premium Member
Joined
·
24,372 Posts
One amp difference <img alt="" class="inlineimg" src="/images/smilies/tongue.gif" style="border:0px solid;" title="Stick Out Tongue"><br><br>
GameXStream 700W delivers 50A over 4 rails; PC Power & Cooling 49A on one rail. Given the single rail design, I'd pick the PC Power & Cooling (no issues in 'dividing' the load across the rails - but that's not a problem for your rig, but will get into play with DX10 cards)
 

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #9
Umm, 18 x 4 is 72... is it not that simple?<br><br>
And how dare that mod change my thread title... but I guess he had good reason (I don't want to offend you)
 

·
Registered
Joined
·
1,737 Posts
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>pow3rtr1p</strong> <a href="showthread.php?s=5f012238fa36186cbb85825ea8d4fba8&p=1390101#post1390101"><img alt="View Post" class="inlineimg" src="http://static.overclock.net//img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Umm, 18 x 4 is 72... is it not that simple?<br><br>
And how dare that mod change my thread title... but I guess he had good reason (I don't want to offend you)</div>
</td>
</tr></table></div>
The GXS doesn't have an independent 12v rail, it's shares it with the +3.3v and +5v
 

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #11
Oh, OK, thanks.
 

·
Premium Member
Joined
·
24,372 Posts
No, you cannot multiply the rails like that. If you check the label (picture available on Newegg), you'll see that there is 680W availalbe for the 3.3V, 5V, and 12V rails combined. Thus, no more than 680/12 = 56.67A is available on the 12V rails, under the (rediculous) condition that there is no load on the 3.3V and 5V rails.<br><br>
Moreover, the GameXStream is identical to the FSP Epsilon 700W (yes, the one in my rig), and the FSP website states that the max load on the 12V rails is 50A.<br><br>
With multiple rail PSUs, you rarely see that the total max load on the 12V rails is the same of the individual rails added up. The limit of the individual rails is exactly that: the max load on that one single rail.<br><br>
PS: 72 x 12 = 864W.... bit high for a 700W PSU... <img alt="" class="inlineimg" src="/images/smilies/tongue.gif" style="border:0px solid;" title="Stick Out Tongue">
 

·
Filthy Casual
Joined
·
8,653 Posts
Discussion Starter #13
Well all the same, that's my PSU next time around <img alt="" class="inlineimg" src="/images/smilies/biggrin.gif" style="border:0px solid;" title="Big Grin">
 
1 - 13 of 13 Posts
Top