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Corsair TX650 + 2x 7950s + FX6350...

post #1 of 19
Thread Starter 
Now that 7950s can finally be had for less than $200, I grabbed a second one to crossfire.

I did some rough calculations to determine if my TX650 should handle the GAMINGEVOLVED sig rig with an added 7950.

I used a Kill-A-Watt and took some measurements, as follows:



Now, the 81% column is because the TX650 is roughly 81% efficient. I figured the components inside would be drawing 81% of the draw at the socket.

Then I subtracted the idle load, to get a guesstimation of individual CPU and GPU use.

Note that the mining + intelburntest benches run simultaneously weren't able to 100% load CPU+GPU, so additive wattage is less than when I ran them individually. I decided not to use these numbers.

That said, 2x 7950s @ full load is ~404w, CPU at full load is ~111w. Take that 404w + 111w + 75w idle (for remainder of component load) and I get ~590w if both GPUs and CPU were fully loaded.

Therefore, I should get away with these crossfired overclocked 7950s in this rig.

Did I grossly overlook anything?
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post #2 of 19

Will you be mining 24/7 at all? Will you play games while mining?

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post #3 of 19
Thread Starter 
I don't mine much any more, but if I do it'll be the GPUs only, so the CPU will remain idle.

It'll mostly be games and games only while gaming.

Now I might decide to start folding again next Winter, which will load both GPUs and possibly the CPU if I decide to CPU fold as well. By then I might be able to afford a new PSU.
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post #4 of 19
Quote:
Originally Posted by FastMHz View Post

I don't mine much any more, but if I do it'll be the GPUs only, so the CPU will remain idle.

 

Wait, you can mine on the CPU while you're also mining on the GPUs? I thought that mining was a GPU-only thing. Wow.

 

Quote:
Originally Posted by FastMHz View Post


It'll mostly be games and games only while gaming.

Now I might decide to start folding again next Winter, which will load both GPUs and possibly the CPU if I decide to CPU fold as well. By then I might be able to afford a new PSU.

 

Will the folding be 24/7?

 

For now though, the TX650 has all the power that your system needs and then some. ;) For 24/7 folding on the GPUs and the CPU simultaneously, it has enough power, but from everything I've heard, I would say that a good quality-made 750W PSU would be better for the sake of the PSU and for the sake of maximizing your efficiency. For part-time Folding, the TX650 is still good - but of course, a new modular PSU would be fun. lol


Edited by TwoCables - 4/16/14 at 4:37pm
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post #5 of 19
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Wait, you can mine on the CPU while you're also mining on the GPUs? I thought that mining was a GPU-only thing. Wow.

Will the folding be 24/7?

Yup, there are SCRYPT CPU mining programs...but what a waste of electricity it is!! Very low hash rate...GPU definitely does better.

I will not fold 24/7, just at night due to the noise. I only do it during cold months as well because it just helps heat the house smile.gif
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post #6 of 19
Quote:
Originally Posted by FastMHz View Post


Yup, there are SCRYPT CPU mining programs...but what a waste of electricity it is!! Very low hash rate...GPU definitely does better.

I will not fold 24/7, just at night due to the noise. I only do it during cold months as well because it just helps heat the house smile.gif

 

Well, then other than upgrading for fun, I see no good reason to replace the TX650.

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post #7 of 19
Thread Starter 
Then I won't. IIRC this unit has Seasonic guts, so it's a keeper.
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post #8 of 19
Quote:
Originally Posted by FastMHz View Post

Then I won't. IIRC this unit has Seasonic guts, so it's a keeper.

 

Only if its the original TX650 or the V2:

 

http://www.overclock.net/t/654983/on-corsair-psus

 

Quote:
Originally Posted by Phaedrus2129 View Post

TX series (original)
Enthusiast mid-range units, fixed cables, rated at 50C, Japanese caps, 80+ or 80+ bronze, 5 year warranty.

TX650 - SeaSonic S12
TX750 - CWT PSH
TX850 - CWT PSH
TX950 - CWT DSG

TX series (stop-gap)
Enthusiast mid-range units, fixed cables, rated at 40C, Japanese caps, 80+, 5 year warranty. These power supplies replaced the original TX line in approx. Q3 2010. They perform slightly better, but there are questions about build quality.

TX650-C - CWT PSH-II
TX750-C - CWT PSH-II
TX850-C - CWT PSH-II

(Some reports of alternate variations, unconfirmed)

TX v2 series
Upper-mid-range enthusiast units, fixed cables, rated at 50C, Japanese caps, 80+ Bronze, 5 year warranty

TX650v2 - SeaSonic S12II (SS-***AT)
TX750v2 - SeaSonic S12II (SS-***AT)
TX850v2 - SeaSonic S12II (SS-***AT)

TXM series
Upper-mid-range enthusiast units, modular cables, rated at 50C, Japanese caps, 80+ Bronze, 5 year warranty

TX550M - CWT PSH-III
TX650M - CWT PSH-III
TX750M - CWT PSH-III
TX850M - CWT PSH-III


Further Reading

 

 

Just in case, CWT is Channel Well Technology.

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post #9 of 19
Quote:
Originally Posted by FastMHz View Post

Note that the mining + intelburntest benches run simultaneously weren't able to 100% load CPU+GPU, so additive wattage is less than when I ran them individually.
If you are loading all CPU threads, you have to restrict the GPU miner's process affinity to one core/thread. If you don't, Windows will keep moving the GPU process from thread to thread, which continuously interrupts both CPU and GPU mining processes. Back when I mined XPM and LTC at the same time, I used Process Lasso to automatically set process priority and affinity for my mining processes after reboots.

If I remember correctly, some TX650's were Seasonic and others were CWT. You'd have to Google the part number. Edit: TwoCables be me to it.

And if I can get away with mining on four 7950's with an HX850, two 7950's with a TX650 should be fine. biggrin.gif
 
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post #10 of 19
Thread Starter 
I purchased the TX-650 2/24/2011 from NewEgg.
Quote:
Originally Posted by MrLinky View Post

If you are loading all CPU threads, you have to restrict the GPU miner's process affinity to one core/thread. If you don't, Windows will keep moving the GPU process from thread to thread, which continuously interrupts both CPU and GPU mining processes.

This makes perfect sense. I had the same issue trying to run FurMark+IntelBurnTest as well.
Edited by FastMHz - 4/16/14 at 5:37pm
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MouseAudio
Logitech G500 T1 24BIT Tube USB DAC 
CPUMotherboardGraphicsRAM
AMD Athlon II X2 255 ASRock 970DE3/U3S3 Radeon X300 Kingston KHX1600C9D3/4GX 
Hard DriveHard DriveHard DriveHard Drive
8x Samsung HD204UI 7x Seagate ST2000DM001 Transcend TS16GSSD25-S 2x WD WD40EZRX 
Case
AZZA Helios 
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RYZEN
(14 items)
 
OFFICE PC
(12 items)
 
20TB_HOMENAS
(9 items)
 
CPUMotherboardGraphicsRAM
Ryzen 1700X ASRock Fatal1ty X370 Professional Gaming XFX 390x Corsair Vengeance LPX 64GB DDR4 
Hard DriveOptical DriveCoolingOS
A bunch of swappable SSDs LG BD-ROM Thermaltake CL-P039-AL12BL-A Contac Silent Windows 7 
MonitorKeyboardPowerCase
Generic Korean 32" 4K Generic mechanical rainbow LED lit SeaSonic G Series 550-Watt AZZA Helios 910 CSAZ-910 
MouseAudio
Logitech G500 T1 24BIT Tube USB DAC 
CPUMotherboardGraphicsRAM
AMD Athlon II X2 255 ASRock 970DE3/U3S3 Radeon X300 Kingston KHX1600C9D3/4GX 
Hard DriveHard DriveHard DriveHard Drive
8x Samsung HD204UI 7x Seagate ST2000DM001 Transcend TS16GSSD25-S 2x WD WD40EZRX 
Case
AZZA Helios 
  hide details  
Reply
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