DangerClose Posted January 12, 2018 Share Posted January 12, 2018 I will be building up my system this week: 7900X Rampage VI Extreme SLI 1080Ti NVME 960 evo 32GB Dom Plat 2800 mem I will not be overclocking, just letting the board ramp as it will automatically (for now). Will my HX1000 PSU be enough for this? I can't find an AX1200i or 1500i or 1600i in stock anywhere to buy....nowhere online or at any local microcenter. Once I find an AX1600i in stock I'll replace this thing, but who knows how long that will take? I just don't want to damage anything until then, it could be months. Link to comment Share on other sites More sharing options...
teshreve Posted January 18, 2018 Share Posted January 18, 2018 If it helps, a 1080 ti card draws about 270-280 watts at factory clocks. This figure includes power delivered via the PCIe slot. Full-tilt-boogie overclocks bring the figure close to 330 watts. A 1kw PS should be fine, even with some OC action, waka waka Link to comment Share on other sites More sharing options...
jmike Posted January 18, 2018 Share Posted January 18, 2018 I'm going to say yes but only just. Here's my former build who's motherboard died back in Oct and I'm currently waiting on 1200w availability so I can put together my Coffee lake build. i7 4790k@4.6 16GB Corsair Dominator Platinum DDR3@2133 Asus Maximus VII Formula 2x EVGA 1080ti FTW3s 2x Samsung 840 Evo 500gb 2x WD Black 4tb EVGA G3 1000w Corsair H100i Corsair Air 540 w/ 6 Corsair HD Fans EVGA G3 1000w Various USB Devices(KB/Mouse/Headset/Etc) On a few newer, hardware intensive games like AC:Origins, Witcher 3, etc I'd see my UPS report 870-900w load. I could synthetic bench it to a hair over 900w. For me I prefer to have a bit more than 100w headroom which is why I'm waiting for Corsair or EVGA to restock retailers with 1200w models. Link to comment Share on other sites More sharing options...
teshreve Posted January 18, 2018 Share Posted January 18, 2018 900w on the AC side @ 90% efficiency (best case) = 810w on the DC side. So your EVGA G3 was running at 81% I'd do that all day long vs. spending bucks to get 13.5% less utilization w/ a 1200w PS. Link to comment Share on other sites More sharing options...
DangerClose Posted January 18, 2018 Author Share Posted January 18, 2018 Thanks for the response guys. I'm using it now and so far everything has been fine, but I do have an AX1600i on order. It should arrive in a few days. Link to comment Share on other sites More sharing options...
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