EVGA GTX 670 2-way SLI, i5-3570k 620W PSU ok??
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exhibitO
July 13, 2012 1:13:15 PM
Hi guys,
I'm going the SLI route, I used power calculator to get how much power I need for my PSU but it didn't have GTX 670 listed so, I used 680s in SLI.
Here is my specs:
2-3HDD
2SSD
i5-3570k (run stock but I might OC in the future)
EVGA GTX 670 2-way SLI FTW Edition
Corsair 600t (2-200mm fans 1-120mm fan with LED)
2 x 4GB DDR3 RAM
Might add a few LEDS and some slight optimzations in the future.
IS this PSU okay, or should I RMA it and buy a 700-750W one?
I'm going the SLI route, I used power calculator to get how much power I need for my PSU but it didn't have GTX 670 listed so, I used 680s in SLI.
Here is my specs:
2-3HDD
2SSD
i5-3570k (run stock but I might OC in the future)
EVGA GTX 670 2-way SLI FTW Edition
Corsair 600t (2-200mm fans 1-120mm fan with LED)
2 x 4GB DDR3 RAM
Might add a few LEDS and some slight optimzations in the future.
IS this PSU okay, or should I RMA it and buy a 700-750W one?
More about : evga gtx 670 sli 3570k 620w psu
exhibitO
July 13, 2012 1:25:08 PM
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What is the make and model of the PSU? Ar eyou planning on OC for the CPU/GPUs?
A system with two GTX 670 running in 2-way SLI mode requires a 700W PSU with at least 48A on the 12V rails and four 75W 6-pin PCIe power connectors. Amps on the 12V rails is more important than the wattage rating of the PSU; most of the power draw in modern PCs comes from GPU/CPU power draw on the 12V rails. Real-world power draw in a system using a highly OCed, power-hungry i7 965 was 433W (293W from the GPUs): http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa... A good quality 620W PSU is likely to be electrically sufficient but probably won't have the required power connectors. You can use molex-PCIe adapters or 8-pin y-splitters to get more PCIe connectors.
A system with two GTX 670 running in 2-way SLI mode requires a 700W PSU with at least 48A on the 12V rails and four 75W 6-pin PCIe power connectors. Amps on the 12V rails is more important than the wattage rating of the PSU; most of the power draw in modern PCs comes from GPU/CPU power draw on the 12V rails. Real-world power draw in a system using a highly OCed, power-hungry i7 965 was 433W (293W from the GPUs): http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa... A good quality 620W PSU is likely to be electrically sufficient but probably won't have the required power connectors. You can use molex-PCIe adapters or 8-pin y-splitters to get more PCIe connectors.
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If you do decide to go with a 750W PSu, then this MKII 750 is a steal for $90 and you get a $20 gift card: http://www.newegg.com/Product/Product.aspx?Item=N82E168... Other 750W options in order:
1. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
2. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
3. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
1. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
2. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
3. http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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Review for the PC P&C MKII 750W: http://www.hardwaresecrets.com/article/PC-Power-and-Coo...
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I currently run 2 560 448s in SLI with my 3930...all OC'd and pull about 500w from the wall under stress...which means ~450w from the psu. The 670s are about the same or a little better than a 560 448. A 3570 will draw less power than a 3930. A good 620w power supply with the proper connections will probably run fine: they are designed to run efficiently for a long time at high load, so 70-75% is okay if you have a good one like a Seasonic S12II or the equivalent Antec HCG unit. I used to run a Seasonic X-660 for this box and had no problem...I only upgraded because I do distributed computing and was running a 3rd GPU for awhile.
I can't tell from your post whether you already bought the PSU or are thinking of buying one. If you already bought it and its a good quality unit, I'd keep it rather than switch to a lower quality 750 for example. If you haven't purchased it, even with my willingness to run psus at high load for months, I'd consider a little more power like Rugger suggests.
I can't tell from your post whether you already bought the PSU or are thinking of buying one. If you already bought it and its a good quality unit, I'd keep it rather than switch to a lower quality 750 for example. If you haven't purchased it, even with my willingness to run psus at high load for months, I'd consider a little more power like Rugger suggests.
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exhibitO
July 13, 2012 3:10:41 PM
exhibitO
July 13, 2012 3:19:06 PM
Temile said:
I currently run 2 560 448s in SLI with my 3930...all OC'd and pull about 500w from the wall under stress...which means ~450w from the psu. The 670s are about the same or a little better than a 560 448. A 3570 will draw less power than a 3930. A good 620w power supply with the proper connections will probably run fine: they are designed to run efficiently for a long time at high load, so 70-75% is okay if you have a good one like a Seasonic S12II or the equivalent Antec HCG unit. I used to run a Seasonic X-660 for this box and had no problem...I only upgraded because I do distributed computing and was running a 3rd GPU for awhile. I can't tell from your post whether you already bought the PSU or are thinking of buying one. If you already bought it and its a good quality unit, I'd keep it rather than switch to a lower quality 750 for example. If you haven't purchased it, even with my willingness to run psus at high load for months, I'd consider a little more power like Rugger suggests.
Thanks,I ordered the Seasonice M12II 620 Bronze PSU, it arrived but I haven't built the machine yet,so it's still in the box.
SHould I RMA it and get a 750W?
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"SLI connectors are included with all NVIDIA SLI-Ready motherboards and with all SLI-Ready PCs": http://sli.nvidia.com/page/slizone_faq.html The FAQ also incudes a description of the connector and what to do if your mobo didn't come with it.
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If you can get the retailer to absorb the shipping or waive the restocking fees, then it may be worth it to ge the MKII above. You avoid the cost of the adapters/splitters for the M12II 620W. If you're not immediately going to SLI, then I'd stick with the current PSU and just get the adapters later on when you decide to SLI.
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exhibitO
July 13, 2012 3:36:00 PM
Rugger said:
What is the make and model of the PSU? Ar eyou planning on OC for the CPU/GPUs?A system with two GTX 670 running in 2-way SLI mode requires a 700W PSU with at least 48A on the 12V rails and four 75W 6-pin PCIe power connectors. Amps on the 12V rails is more important than the wattage rating of the PSU; most of the power draw in modern PCs comes from GPU/CPU power draw on the 12V rails. Real-world power draw in a system using a highly OCed, power-hungry i7 965 was 433W (293W from the GPUs): http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa... A good quality 620W PSU is likely to be electrically sufficient but probably won't have the required power connectors. You can use molex-PCIe adapters or 8-pin y-splitters to get more connectors.
Thanks, it looks like this will work with everything you listed
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Is it okay with the 20+4 pins, though. I'm slightly concerned like i said my mobo is 24 pins, everything else looks ok?
Fully modular,etc
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rooket
July 13, 2012 5:57:21 PM
anort3 said:
With a 1440 x 900 monitor you need a GTX 560/HD 6850 level card to max every game. Running 2 of them a single GTX 670 is more than enough. Don't waste money on a high end gaming computer with low end monitors. Spend the money from one of the planned GTX 670s on a pair of nice 1920 x 1080 monitors.Maybe he's talking about a 27" 2560 x 1440 ?
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exhibitO said:
Thanks, it looks like this will work with everything you listedhttp://www.newegg.com/Product/Product.aspx?Item=N82E168...
Is it okay with the 20+4 pins, though. I'm slightly concerned like i said my mobo is 24 pins, everything else looks ok?
Fully modular,etc
Great PSU it's compatible so no worries
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exhibitO
July 14, 2012 8:10:48 PM
Realistically your system won't be drawing more than 500W.
2 670's draw around 300W
http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa...
BUT, they won't always be under such a stressing task like Furmark.
2 670's draw around 300W
http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa...
BUT, they won't always be under such a stressing task like Furmark.
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exhibitO
July 14, 2012 8:28:12 PM
Temile said:
Catleap? A friend just got two of them...they're amazing.How did you know :-p, yes it's on it's way
I'm think I'll order another 670, I think one might struggle slightly on max settings at this resolution. what do you guys think..
As far as power draw, I know realistically I'm probably in the high 500 range, but I want to future proof this thing once and for all. thanks
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Best solution
The GTX 670 is only about 7%-8% slower than a GTX 680. According to Tom's best graphics cards for the money article the GTX 670 delivers great 2560 x 1600 performance.
http://www.tomshardware.com/reviews/gaming-graphics-car...
Try one and see how it does. If it's not delivering what you want get a second card.
http://www.tomshardware.com/reviews/gaming-graphics-car...
Try one and see how it does. If it's not delivering what you want get a second card.
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exhibitO
July 14, 2012 9:14:28 PM
exhibitO
July 14, 2012 9:15:15 PM
anort3 said:
The GTX 670 is only about 7%-8% slower than a GTX 680. According to Tom's best graphics cards for the money article the GTX 670 delivers great 2560 x 1600 performance. http://www.tomshardware.com/reviews/gaming-graphics-car...
Try one and see how it does. If it's not delivering what you want get a second card.
Thanks, I'll pull the trigger on the 750W HX Corsair PSU.
My buddy seems to think since I'm RMA I should get a 850 for complete future proof, but i think thats utter overkill.. even for future proofing, no?
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Actually I just saw this if you have not bought one yet. The Seasonic X750 is on sale at newegg for $119 with promo code EMCNCJG47.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
One of the best power supplies made. It's on sale until 7/15.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
One of the best power supplies made. It's on sale until 7/15.
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exhibitO said:
Thanks, I'll pull the trigger on the 750W HX Corsair PSU.My buddy seems to think since I'm RMA I should get a 850 for complete future proof, but i think thats utter overkill.. even for future proofing, no?
A 850W is not overkill and i would do the same a 750W will be more than fine but 850 would be better for future proofing IMO
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