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New build - Not sure if my AX1200i will provide enough juice?

post #1 of 28
Thread Starter 
I'm going to be moving the rig in my signature from my Cosmos 2 to a CaseLabs TH10 + Pedestal and will accordingly be significantly upping the number of fans and radiators in my system. My AX1200I is currnetly driving:

3930K at 1.4V
4 overclocked and overvolted 7970s
2 Samsung SSDs
2 Swiftech MCP655s
9 Cooler Master Excalibur Fans
Panasonc Optical drive

I'm going to have a little over 40 fans in my new build because of push pull quad radiator setups. They're going to be running off of a Lamtpron FC Touch and a Lamptron CW611 controller. I'm a little worried that, of all things, fans are what's going to put me over the limit on my PSU. I will have 18 140mm fans that pull 6W each and 26 120mm fans that pull about 3.8W each (all BGears B-Blasters).

Luckily the TH10 has a second power supply mount, so I just need to know if you all think I need a second smaller power supply to maybe run my fans and pumps off of. Maybe like a cheap Corsair CX430 or something. Thanks for the input!
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post #2 of 28
Quote:
4 overclocked and overvolted 7970s

This is the power issue you might face depending on how much over volt and overclock, not the fans being the primary problem.

Looking at 1500w minimum for your set up. 7970s can suck in the juice.
    
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post #3 of 28
Quote:
Originally Posted by MrTOOSHORT View Post

This is the power issue you might face depending on how much over volt and overclock, not the fans being the primary problem.

Looking at 1500w minimum for your set up. 7970s can suck in the juice.

I have to agree here. 7970 is a power hungry beast. i would rather have too much power than not enough. I'm currently running 680x2 sli with 5 mechanical drives and an i7 2600k oc to 4.3. Got a 1050W and its getting me by. your setup will need much more power.


What case are you planning on using?
post #4 of 28
Sorry just noticed you had mentioned the case. I would definitely use the second psu space for a 600W or something maybe even 700 for 2 of the four 7970 cards.
post #5 of 28
Thread Starter 
I appreciate the advice everyone. the 7970s scare me too. I think I will probably end up getting a second relatively cheap Corsair power supply.
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post #6 of 28
no chance if overvolting, you're best bet would be to invest in a $25 kill-a-watt before deciding on which power supply to buy
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post #7 of 28
Quote:
Originally Posted by craptastic7 View Post

I appreciate the advice everyone. the 7970s scare me too. I think I will probably end up getting a second relatively cheap Corsair power supply.

Dont bother with a CX430/500/600 if that is what you are thinking
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post #8 of 28
Quote:
Originally Posted by XanderTheGoober View Post


I have to agree here. 7970 is a power hungry beast. i would rather have too much power than not enough. I'm currently running 680x2 sli with 5 mechanical drives and an i7 2600k oc to 4.3. Got a 1050W and its getting me by. your setup will need much more power.


What case are you planning on using?

 

The GTX 680s don't consume much power at all though, so your PSU is likely pretty overkill.

 

Quote:
Originally Posted by shilka View Post


Dont bother with a CX430/500/600 if that is what you are thinking

 

He's likely only going to use it for the water cooling system and other very minor things like that in order to help.

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It's a computer!
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post #9 of 28
Quote:
Originally Posted by TwoCables View Post

The GTX 680s don't consume much power at all though, so your PSU is likely pretty overkill.


He's likely only going to use it for the water cooling system and other very minor things like that in order to help.
my 680s are the msi lightnings which are oc to 1267 on the core and my i7 is oc to 4.3. I also have 5 hard drives. reason i upgraded is i only had a 700w that was at 90% load. at this point in time it probably is a little overkill but i was running 2 680s and a 780 in it for a while for folding purposes.
post #10 of 28
Quote:
Originally Posted by XanderTheGoober View Post


my 680s are the msi lightnings which are oc to 1267 on the core and my i7 is oc to 4.3. I also have 5 hard drives. reason i upgraded is i only had a 700w that was at 90% load. at this point in time it probably is a little overkill but i was running 2 680s and a 780 in it for a while for folding purposes.

 

How did you measure that it was at 90% load? I mean, what was the method or tool that you used?

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It's a computer!
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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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