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Will this Seasonic TFX be powerfull enough to power a Quad Core or I7 920 ?

speedy6128 said:
Hi there,

Will a Seasonic SS-300TFX 300w PSU be powerfull enough to power a Quad Core 95W or Core I7 920 ?

http://www.seasonicusa.com/tfx.htm
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Take my advice, if you're building a pc never skimp on the PSU. If you go for a bad psu make and it fails it can potentially damage other components (especially the mobo). Have a look for something with a good warranty and known reliability like corsair and for an i7 920 i'd be looking at no less than a 550w (thats with a good gpu, etc).
 
The answer is entirly going to depend on what else is in the system mainly what graphics card do you intended to use? If you are using onboard then Core 2 Quad will be no problem but the Core i7 would be a bit tight.

Have a look for something with a good warranty and known reliability like corsair and for an i7 920 i'd be looking at no less than a 550w (thats with a good gpu, etc).
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I assume he can only use TFX so he will be limited to 300W in that form factor.
 
Nocky24 said:
Take my advice, if you're building a pc never skimp on the PSU. If you go for a bad psu make and it fails it can potentially damage other components (especially the mobo). Have a look for something with a good warranty and known reliability like corsair and for an i7 920 i'd be looking at no less than a 550w (thats with a good gpu, etc).
Click to expand...

As far as I know Seasonic are one of the best brands to go for.
 
nightmare99 said:
The answer is entirly going to depend on what else is in the system mainly what graphics card do you intended to use? If you are using onboard then Core 2 Quad will be no problem but the Core i7 would be a bit tight.



I assume he can only use TFX so he will be limited to 300W in that form factor.
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Got ya ;) sorry not thinking straight today. In that case i wouldn't even consider an i7 with a TFX especially if you was planning on using it for gaming in which case you'd need a beefy gpu and 300w just isn't going to cut it.
 
I'm looking at both these set ups

Intel Core i7 920 2.66Ghz
Asus Rampage Gene II Micro ATX i7
6GB DDR3 (3x2GB) 1600MHz XMS3 Dominator
Galaxy 9600GT Low Power, Low Profile - TDP 59W
64GB OCZ Vertex Turbo SSD
Samsung F1 1TB Sata Harddrive
Sony Sata DVD/CD Burner

Or

Intel Quad Core Q9550 2.83Ghz 12Mb Cache
Asus Maximus Gene II Micro ATX 775
4GB DDR2 (2x2GB) 1066Mhz PC2-8500 Dominator
Galaxy 9600GT Low Power, Low Profile - TDP 59W
64GB OCZ Vertex Turbo SSD
Samsung F1 1TB Sata Harddrive
Sony Sata DVD/CD Burner

My case will only accept TFX PSU's with Seasonic seeming to be the only only trusted manufacturer to make a 300w TFX PSU.
 
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reflux said:
Seasonic are great, but 300w is really pushing it.
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I would have thought the Seasonic at least would have been up for the job of handling the Quad Core setup. Also dont a lot of manufacturers understate there rated PSU wattage, as Dell do it with there 250w TFX PSU's which are more like 300w PSU's that they use for there Studio Slim 540s Quad Cores.
 
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speedy6128 said:
Intel Quad Core Q9550 2.83Ghz 12Mb Cache
Asus Maximus Gene II Micro ATX 775
4GB DDR2 (2x2GB) 1066Mhz PC2-8500 Dominator
Galaxy 9600GT Low Power, Low Profile - TDP 59W
64GB OCZ Vertex Turbo SSD
Samsung F1 1TB Sata Harddrive
Sony Sata DVD/CD Burner

My case will only accept TFX PSU's with Seasonic seeming to be the only only trusted manufacturer to make a 300w TFX PSU.
Click to expand...

I'd be pretty sure it would run this at stock speeds.
 
Dougsnake said:
http://extreme.outervision.com/psucalculatorlite.jsp

use this i doubt a 300w will cut it though
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Great site thanks, according to that the wattage intake without the Graphics card as i couldn't see it listed but is rated to be 59w. Came to the following

Core i7 920 setup - 207watts (Total 266watts with 9600GT LP)

Quad Core Q9550 setup - 180watts (Total 239watts with 9600GT LP)

So from that reckoning the Seasonic should be quite comfortable in handling both those setups.
 
I have just done it, and the i7 rig would draw 299W at 100% load and the PSU can only deliver 252W on the 12v rails, so it wouldn't handle that. But the Q9550 rig draws 262W at 100%, which considering it overestimates the power requirements would be fine :)

*Note the above were done using a 100% system load, not the default 85%.
 
Emmm, I think I'll go with the Q9550 then. To be honest though I'm not really to fussed if it were to be a Q9550 or i7 920 rig, as both of them offer far more performance than I'll properly need.
 
Happy said:
They aren't very accurate though, they always overestimate the power requirements.
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Ah well probs best to overestimate than underestimate. With PSUs its better to have more than enough anyway for upgradability of components. Thats why i shy away from small form factor pcs as you're a little restrained on psu selection and low wattage :/
 
Happy said:
I have just done it, and the i7 rig would draw 299W at 100% load and the PSU can only deliver 252W on the 12v rails, so it wouldn't handle that. But the Q9550 rig draws 262W at 100%, which considering it overestimates the power requirements would be fine :)

*Note the above were done using a 100% system load, not the default 85%.
Click to expand...

When you say 100% system load what exactly would it take for it to do this ?
 
Dual core + better gfx card would do you a lot more good for gaming, and draw the same/less power.

9800gt and e8*00 would be my choice on 300W. If you don't want to game, use the onboard graphics
 
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