680 tri sli 1050W PSU enough?
- Thread starter k1ngm4c1u51
- Start date
Scoob
New member
Ah, you use headphones, no problem at all then 
I'd expect the upper most card to get the warmest, then the middle one, with the lower being the coolest of the lot by a fair margin. It depends on spacing, where the cards vent the heat and air flow. With my 570's back when they were on air, I found that my side fan set to extract made a huge difference vs. having it as intake. Now one of those 570's is in my media PC (different case, different flow) having the side fan on intake is much better for temps.
Scoob.
I'd expect the upper most card to get the warmest, then the middle one, with the lower being the coolest of the lot by a fair margin. It depends on spacing, where the cards vent the heat and air flow. With my 570's back when they were on air, I found that my side fan set to extract made a huge difference vs. having it as intake. Now one of those 570's is in my media PC (different case, different flow) having the side fan on intake is much better for temps.
Scoob.
k1ngm4c1u51
New member
Ah, you use headphones, no problem at all then
I'd expect the upper most card to get the warmest, then the middle one, with the lower being the coolest of the lot by a fair margin. It depends on spacing, where the cards vent the heat and air flow. With my 570's back when they were on air, I found that my side fan set to extract made a huge difference vs. having it as intake. Now one of those 570's is in my media PC (different case, different flow) having the side fan on intake is much better for temps.
Scoob.
Here you have short clip of my current PC on YT http://www.youtube.com/watch?v=Ijl4FfLHB2U
When You pause @ 0:47 two front fans are intake and nothing is in front of them but my side fan is as intake too and unfortunately I cant swap him as exhaust
@ 1:05 Corsair made holes for screws only from one side.
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k1ngm4c1u51
New member
Hi again
I got my 3 GTXs 680 setup and Crysis 3 is pushing my PSU to the limits I think, after 20-30 min of gameplay with AAx8 my PSU gets worm and fan speeds a lot, I'm little worry about this PSU, it might be close to 1000W of usage when playing Crysis 3, all 3 GPUs almost constant 98/99% usage, what do you think guys?
I'm thinking of Corsair AX1200 for peaceful mind to buy on Monday.
I got my 3 GTXs 680 setup and Crysis 3 is pushing my PSU to the limits I think, after 20-30 min of gameplay with AAx8 my PSU gets worm
and fan speeds a lot, I'm little worry about this PSU, it might be close to 1000W of usage when playing Crysis 3, all 3 GPUs almost constant 98/99% usage, what do you think guys? I'm thinking of Corsair AX1200 for peaceful mind to buy on Monday.
crazybearmeow
New member
Hi again
I got my 3 GTXs 680 setup and Crysis 3 is pushing my PSU to the limits I think, after 20-30 min of gameplay with AAx8 my PSU gets worm
I'm thinking of Corsair AX1200 for peaceful mind to buy on Monday.
Wouldn't it be far easier to buy one of these first? and then see a ax1200i is a lot of money to be throwing around without being sure...
http://www.amazon.com/P3-International-P4400-Electricity-Monitor/dp/B00009MDBU
Scoob
New member
The fans on my AX 860i are set to spin up when load is 400w or more, so a fairly moddest level really. However, when they spin they spin loudly (rest of system on water) but only every for a few seconds...it's a bit odd really.
If you're really that worried then go for the AX1200 (or 1200i) as that will be working well within its comfort zone. Plus the 1200i will let you measure exactly what the load is - though 860i gets the PCIe power load totally wrong all the time, it reports load on lines I don't have plugged in! I trust that the overall draw is correct though.
Scoob.
If you're really that worried then go for the AX1200 (or 1200i) as that will be working well within its comfort zone. Plus the 1200i will let you measure exactly what the load is - though 860i gets the PCIe power load totally wrong all the time, it reports load on lines I don't have plugged in! I trust that the overall draw is correct though.
Scoob.
Scoob
New member
Heh, maybe he's fishing for a reason to buy a new PSU? I so get that! lol.
To be fair, I'd have been just fine on my older HX750 PSU, but I thought it had a fault that turned out to be my Inno3d 570...hence my new 680's ... just got the CC bill for that lot through today...ouch! lol.
Scoob.
To be fair, I'd have been just fine on my older HX750 PSU, but I thought it had a fault that turned out to be my Inno3d 570...hence my new 680's ... just got the CC bill for that lot through today...ouch! lol.
Scoob.
k1ngm4c1u51
New member
XFX 1050W PRO have Single Rail but I'm thinking about amperes, maybe is not enough... On the box from 680 says 12v of 38A so 3x38A= 114A and this PSU have Max +12V1 Output Current: 87A. I'm scared now to OC more CPU and I'm not touching GPUs because of nice temps I have lol 
70C 65C 59C on 85% fans!
Link to XFX PSU:
http://xfxforce.com/en-gb/Products/Power-Supply/XFX/Pro-Series/ProSeries-1050W-PSU/P1-1050-BFUK.aspx
Now IF I will change this PSU should I go for Corsair AX1200i or XFX 1250W PRO? Both of them have single rail of around 100A
70C 65C 59C on 85% fans!Link to XFX PSU:
http://xfxforce.com/en-gb/Products/Power-Supply/XFX/Pro-Series/ProSeries-1050W-PSU/P1-1050-BFUK.aspx
Now IF I will change this PSU should I go for Corsair AX1200i or XFX 1250W PRO? Both of them have single rail of around 100A
k1ngm4c1u51
New member
ok guys, I was able to buy energenje power meter 13 amp rated with power range 0.1-3680W +- 0.5% so after 56min gameplay of Crysis 3 max recorded Watt usage was in 43min 688.9W from the wall, power factor was 95, and amps were 2.xx something and my PSU get hot because of last graphics card blowing hot air down somehow, anyway is those readings are true? Right now with all fans on auto readings are 153-160W. I will do more tests later on.
Just finished 3dmark11 - 731.7W max
Just finished 3dmark11 - 731.7W max
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Scoob
New member
Sounds about right. My entire PC - so, monitor, speakers, laptop dock (charging) and external water loop - rarely got over 600w at the wall with my prior GTX 570's over clocked... Your much more power-efficient kit should use less part-for-part. Yes, sounds spot on to me.
Only natural a PSU would start to get warm. Many (mine included) seem to let things get warmish before spinning the fan, I think it's because they are based on load rather than heat. So, mine gets into the low-30's (still only 10-15c over ambient) while remaining under 400w.
I'd still happily run a 3rd 680 on my AX860i ...
One thing I will say. IF your cards are putting a lot of heat into your case and IF your PSU is sucking up this hot air due to their being no other egress, then it will get warmer. Only natural. Up to you if you chose to let your PSU suck in air from below. I did do this in my case, but that dates from when I had two rather hot GTX 570's heating the case with my side fan extracting. The PSU (an HX750 at the time) stayed cool (to the touch / feeling the air from the back) and quiet throughout as it had a cold air feed. Might not make a difference to the PSU, but might. I mean if "ambient" for the PSU is like 45c due to the heat from your GPU's, then even if it only went 15c over said ambient like mine you'd potentially be looking at 60c! Pretty warm for a PSU.
This does 100% depend on your air flow, where the heat is etc. etc. The point above the PSU was a hot spot in my case prior to me setting the side fan to extract. I recall you said you cannot do this on your case.
Scoob.
Only natural a PSU would start to get warm. Many (mine included) seem to let things get warmish before spinning the fan, I think it's because they are based on load rather than heat. So, mine gets into the low-30's (still only 10-15c over ambient) while remaining under 400w.
I'd still happily run a 3rd 680 on my AX860i ...
One thing I will say. IF your cards are putting a lot of heat into your case and IF your PSU is sucking up this hot air due to their being no other egress, then it will get warmer. Only natural. Up to you if you chose to let your PSU suck in air from below. I did do this in my case, but that dates from when I had two rather hot GTX 570's heating the case with my side fan extracting. The PSU (an HX750 at the time) stayed cool (to the touch / feeling the air from the back) and quiet throughout as it had a cold air feed. Might not make a difference to the PSU, but might. I mean if "ambient" for the PSU is like 45c due to the heat from your GPU's, then even if it only went 15c over said ambient like mine you'd potentially be looking at 60c! Pretty warm for a PSU.
This does 100% depend on your air flow, where the heat is etc. etc. The point above the PSU was a hot spot in my case prior to me setting the side fan to extract. I recall you said you cannot do this on your case.
Scoob.
