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PSU + Case: i5 760 OCed + Sapphire 5870 CF

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September 4, 2010 6:09:13 PM

So I have most of my build parts shipped and now it's down to PSU and Case.
Currently my rig will run on one 5870 which will be crossfired with a second 5870 in a year or so.

The system:

Motherboard: ASUS P7P55D-E Pro LGA 1156

CPU: Core i5 760 Lynnefield - intending to overclocked to about 3.8 gigs with ~1.3 VCore

Cooler: Scythe Mugen 2 Rev. B

Memory: G.SKILL Ripjaws Series 4GB (2 x 2GB) CL7

HD: OCZ Vertex2 60GB (System drive)
Western Digital Caviar Black 640GB (Data drive)

Graphics: 2 X SAPPHIRE 100281-3SR Radeon HD 5870 (Cypress XT) 1GB (190 watts at full load each)


I drew power figures for the graphics from here.
I was calculating the rigs power demand in eXtreme Power Supply Calculator and got recommended wattage of: 697watts.
I was looking here then, and found that I can get these near my home:

Seasonic M12D-750 for 178$
Seasonic X-750 for 203$
Antec TruePower 750W for 181$ (don't know if new series or old TP does it matter?)
Corsair TX 750 for 180$
Corsair HX 750 for 200$
Thermaltake Toughpower W0117RE 750W for 199$ (not XT. does it matter?)
Thermaltake Toughpower XT 775 for 226$
Enermax Modu87+ 700W for 226$

If they can supply with no stress, I'm leaning towards the cheapest of the bunch, i.e. Corsair TX 750 or Antec TruePower 750 or Seasonic M12D. Will they do the job or should I go for X-750? (which is, otherwise, best option I think if you look at quality/price)
Please advise.

Next, I need to decide about a case. This PC is going to be a gaming pc and an HTPC. It is going to be connect to a full-HD TV 46" set. I like to watch movies in complete darkness and so I don't like to have all those leds on/in the case. I would also prefer for the it not to have windows. And in general, it doesn't need to look like a spaceship.
I was thinking of buying an HTPC case, but they are very expensive, and I'm not sure about the airflow in those. This machine is going to generate some heat, you know.

To say the truth, I didn't check how noisy the 5870 is going to be when idle (playing FHD = idle??). And I don't have a clue how noisy is my Scythe Mugen, since it was added to an already noisy system. But assuming It's not a truck already, I will be amazingly happy if I could find a less noisy case, for day to day computer use.

So basically;
- Are there HTPC cases with good cooling that are not in the 250$ range?
- If not, which nice looking but not flashy tower cases I should be looking at?
- Considering the 3 potential graphic cards and my pretty large Scythe cooler and mobo, am I going to do well with a mid-tower and not a full one?
- Is my computer going to be awfully noisy?


Thanks a lot
a c 139 ) Power supply
September 4, 2010 6:16:32 PM

Hello onn_e;

Crossfire HD 5870 and a GT 240 on a ASUS P7P55D-E Pro motherboard?
Where on the motherboard will you be able to use a GT 240 after you've setup the HD 5870s in Crossfire?
September 4, 2010 6:45:08 PM

WR2 said:
Hello onn_e;
Crossfire HD 5870 and a GT 240 on a ASUS P7P55D-E Pro motherboard?
Where on the motherboard will you be able to use a GT 240 after you've setup the HD 5870s in Crossfire?


OOPS.

I guess I misinterpreted:
Quote:
Multi-GPU Suppors:
Supports NVIDIA® Quad-GPU SLI™ Technology
Supports ATI® Quad-GPU CrossFireX™ Technology

So... I'm off with Physx. That's sad.

I edited the original post.
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a c 139 ) Power supply
September 4, 2010 7:19:37 PM
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Physx is ON if you want it. The ASUS P7P55D-E Pro has just two x16 slots so you'd be working with a HD 5870 and GT 240 for example. A Crossfire of SLI setup wouldn't leave room for a dedicated Physx card.

A top notch 650W PSU would cover your OC'ing and HD 5870 Crossfire power needs. Examples:
Antec TruePower New 650W (4 PCI-e power cables)
SeaSonic S12II 620W (2 PCI-e power cables - will require 2 molex to PCI-e adapters for CF)
Corsair 650TX 650W (2 PCI-e power cables - will require 2 molex to PCI-e adapters for CF)

Of course your 750W (Antec TP New 750, Corsair 750TX, and Seasonic M12) model choices would be OK too.
Just be sure the Antec is the TruePower NEW 750W.

HTPC cases do tend to be more expensive than mid-tower gaming cases. To get a quiet system its sometimes better to get a larger case with bigger, slower turning fans.
And the look of the case is always an individual personal preference.
September 4, 2010 8:06:04 PM

WR2 said:
Physx is ON if you want it. The ASUS P7P55D-E Pro has just two x16 slots so you'd be working with a HD 5870 and GT 240 for example. A Crossfire of SLI setup wouldn't leave room for a dedicated Physx card.

A top notch 650W PSU would cover your OC'ing and HD 5870 Crossfire power needs. Examples:
Antec TruePower New 650W (4 PCI-e power cables)
SeaSonic S12II 620W (2 PCI-e power cables - will require 2 molex to PCI-e adapters for CF)
Corsair 650TX 650W (2 PCI-e power cables - will require 2 molex to PCI-e adapters for CF)

Of course your 750W (Antec TP New 750, Corsair 750TX, and Seasonic M12) model choices would be OK too.
Just be sure the Antec is the TruePower NEW 750W.

HTPC cases do tend to be more expensive than mid-tower gaming cases. To get a quiet system its sometimes better to get a larger case with bigger, slower turning fans.
And the look of the case is always an individual personal preference.



I went for some reading and came up with these (hypothetical) ideas:

- use a PCI riser (what's that??) to fit a physx compatible card in a free PCIe x 1

- do this

- use that
September 4, 2010 8:23:00 PM

WR2 said:
I'm not liking that option at all.

Instead of the ASUS P7P55D-E Pro - go with the ASUS P7P55D Pro.
It doesn't have USB 3.0/SATA 6GB/s but it does have 3 x16 PCI-e slots @ X8, X8, X4.
You can add USB3/SATA6 support back in with a PCI-e x1 slot add-on cards if you find you have a need.


That's a shame.
The parts are already shipped from newegg.
September 4, 2010 8:40:18 PM

won't the ageia physx card work?
a c 139 ) Power supply
September 4, 2010 11:18:51 PM

About four years ago that Ageia Physx card was selling for $250.
http://hothardware.com/Reviews/BFG-Ageia-PhysX-Physics-...
And not it's selling for under $20.
I'm not sure - but I don't have a lot of confidence it's worth even that much.

Let us know what you find out.
a b ) Power supply
September 5, 2010 7:47:22 AM

Seasonic X-750 for 203$
Enermax Modu87+ 700W for 226$
Corsair HX 750 for 200$
Seasonic M12D-750 for 178$
Thermaltake Toughpower XT 775 for 226$
Corsair TX 750 for 180$
Antec TruePower 750W for 181$ (don't know if new series or old TP does it matter?)
Thermaltake Toughpower W0117RE 750W for 199$ (not XT. does it matter?)

sorted best to worst
September 6, 2010 1:55:18 AM

Best answer selected by onn_e.
a b ) Power supply
September 6, 2010 2:08:04 AM

This topic has been closed by Mousemonkey
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