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post #11 of 36
Thread Starter 
Quote:
Originally Posted by bluedevil View Post
Not entirely. That is pushing a PSU to its limits. Also you forgot to factor in the efficiency of the PSU. I say around 74%. So a 600W PSU is actually putting out 444watts. So I say no, get a much better PSU for SLI.

Yeah I was just coming back to ask if the 4x2GB sticks would cause a problem as only 2 were listed in the calculation.

I guess I will just have to wait or maybe find a cheap PSU and then hope the RAM doesn't start going back up.

Any my last power supply was rated 80+. I had everything in this system running on 430Ws except for the extra 2x1GB sticks and one of the IDE drives.

I had all the fans, and usb, etc etc, but I couldn't add another hard drive and I only had 2 sticks of RAM.
My system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E8400 @4Ghz EVGA 780i XFX HD 5850 4GB G.Skill@900Mhz 1:1 Synced 
Hard DriveOptical DriveOSMonitor
640GB WD AAKS, 200GB Maxtor 16X DL w/Lightscribe Win7 x64 19" CRT 
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Logitech Multimedia Ultra X3 1000w CM 690 Roccat Kone v2 
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My system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E8400 @4Ghz EVGA 780i XFX HD 5850 4GB G.Skill@900Mhz 1:1 Synced 
Hard DriveOptical DriveOSMonitor
640GB WD AAKS, 200GB Maxtor 16X DL w/Lightscribe Win7 x64 19" CRT 
KeyboardPowerCaseMouse
Logitech Multimedia Ultra X3 1000w CM 690 Roccat Kone v2 
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FuncPad 
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post #12 of 36
Quote:
Originally Posted by bluedevil View Post
Not entirely. That is pushing a PSU to its limits. Also you forgot to factor in the efficiency of the PSU. I say around 74%. So a 600W PSU is actually putting out 444watts. So I say no, get a much better PSU for SLI.
Wrong wrong wrong. If a psu is rated at 600w, it will supply up to that to the computer. Efficiency comes into play when it converts AC->DC. If it 75% efficient, it will pull 800w from the wall to power 600w.

Now, which Ultra psu you do have? I ask because if it is low quality one I would buy a different psu. Overclocked with sli will start to load that psu up pretty well and I would be uncertain about that with a lower quality psu.

Oh and don't trust those online calculators.
i7 monsta
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i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
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X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
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i7 monsta
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Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
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post #13 of 36
Quote:
Originally Posted by shinji2k View Post
Wrong wrong wrong. If a psu is rated at 600w, it will supply up to that to the computer. Efficiency comes into play when it converts AC->DC. If it 75% efficient, it will pull 800w from the wall to power 600w.

Now, which Ultra psu you do have? I ask because if it is low quality one I would buy a different psu. Overclocked with sli will start to load that psu up pretty well and I would be uncertain about that with a lower quality psu.

Oh and don't trust those online calculators.
I would like some proof to back that up.
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post #14 of 36
Quote:
Originally Posted by bluedevil View Post
I would like some proof to back that up.
http://www.jonnyguru.com/forums/showthread.php?t=3989
i7 monsta
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i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
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i7 monsta
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i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
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post #15 of 36
Thread Starter 
I have the box here at work, its the Ultra Xfinity, says the model number is XF600BK(which I think is the Tigerdirect model number)

Efficiency
79% max at typical load, 115/230/Vac 60Hz/50Hz
73% max at full load, 115/230/Vac 60Hz/50Hz

link to ultra's website

http://www.ultraproducts.com/product...&productID=388
My system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E8400 @4Ghz EVGA 780i XFX HD 5850 4GB G.Skill@900Mhz 1:1 Synced 
Hard DriveOptical DriveOSMonitor
640GB WD AAKS, 200GB Maxtor 16X DL w/Lightscribe Win7 x64 19" CRT 
KeyboardPowerCaseMouse
Logitech Multimedia Ultra X3 1000w CM 690 Roccat Kone v2 
Mouse Pad
FuncPad 
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Reply
My system
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel E8400 @4Ghz EVGA 780i XFX HD 5850 4GB G.Skill@900Mhz 1:1 Synced 
Hard DriveOptical DriveOSMonitor
640GB WD AAKS, 200GB Maxtor 16X DL w/Lightscribe Win7 x64 19" CRT 
KeyboardPowerCaseMouse
Logitech Multimedia Ultra X3 1000w CM 690 Roccat Kone v2 
Mouse Pad
FuncPad 
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Reply
post #16 of 36
Quote:
Originally Posted by shinji2k View Post
Thanks, just read it on AnandTech. I stand corrected.
Ryzen 7 1700
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Samsung 950 Pro 512GB PCIe/NVME SSD Xigmatek Scylla 240 AIO Win10 Pro X64 Qnix QX2710LED @ 110hz 
KeyboardPowerCaseMouse
Cooler Master Masterset MS121  EVGA G2 850 w/EVGA Black Cableset Lian Li Test Bench Cooler Master Masterset MS121  
Audio
Sanyo Soundbar FWSB405F 
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Ryzen 7 1700
(13 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus X370 Crosshair VI Hero EVGA GTX 1080 FE Geil 16GB RGB DDR43000 
Hard DriveCoolingOSMonitor
Samsung 950 Pro 512GB PCIe/NVME SSD Xigmatek Scylla 240 AIO Win10 Pro X64 Qnix QX2710LED @ 110hz 
KeyboardPowerCaseMouse
Cooler Master Masterset MS121  EVGA G2 850 w/EVGA Black Cableset Lian Li Test Bench Cooler Master Masterset MS121  
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Sanyo Soundbar FWSB405F 
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post #17 of 36
It's all good
i7 monsta
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CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
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i7 monsta
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
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post #18 of 36
If it uses 80mm fans, then its a Wintech unit. Its not all that great, I'm not sure I would recommend it for sli. If it's the X-finity EE with one large fan, then its pretty good.
i7 monsta
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
  hide details  
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i7 monsta
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.2GHz] [1.325V] ASUS P6T Deluxe V2 2x XFX 5870 [1000/1250] G.Skill 3x2GB 1600MHz 
Hard DriveOSMonitorKeyboard
X25-M 80GB, 320GB WD Scorpio Black Vista x64 2007FP-3007WFP-2007FP-1080p 32" OCN Ducky Brown 
PowerCaseMouse
Silverstone ST85F-P whiteOut G9 
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post #19 of 36
Quote:
Originally Posted by SG_Stryker View Post
Thanks for the help!
You're welcome.

And don't get 8GB. That's extreme overkill. Nobody needs 8GB of ram. And as durch stated, even 4GB is excessive for most users. The most common purchases being made right now are 2GB, and then coming in at a very close second, 4GB. 4GB purchases are being made much more because it's starting to become necessary for some users.

So as I said before, unless you know from experience that 2GB is insufficient for your computing needs, do not get more than 2GB. If you must get a lot of memory, then get 4GB (2 x 2GB).

It bears repeating: 8GB of memory is extreme overkill and you'll never need it. It may even take up unnecessary resources, but this is just a guess on my part.
post #20 of 36
Quote:
Originally Posted by shinji2k View Post
If it uses 80mm fans, then its a Wintech unit. Its not all that great, I'm not sure I would recommend it for sli. If it's the X-finity EE with one large fan, then its pretty good.
This is his PSU. So, he's absolutely okay.

Edit: Hey, it has a high-gloss finish too. I'm kinda jealous.

2nd Edit: Hey Stryker, why didn't you get this one? It looks kinda cool!
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