May 7, 20242 yr Hi guys , i have been having a lot of stability issues with AM5 system and a friend of mine suggested it maybe my 1000w corsair unit wasnt powerful enough see signature for spec . so i went out and purchased a be quite 1500w unit , but i couldn't get either of the supplied 12v cables to supply power to my 4090 , everthing else seemed normal. so to troubleshoot i re fitted my old 1000w unit and all was back to normal . one thing that i will add , is both power units were not plugged directly into the wall but via an extension . i was wondering if that could be the issue . As anyone else experienced this with a 1500w BE QUITE straight power units ? ROG Crossair Hero X670e , 9900X, TUF 4090 , X4 NVME's. OS 2TB 980 Pro , MSFS 2TB WD Black , Kington Fury 64GB ram ( 6000) Corsair RM1000 PSU, Artic Freezer iii 360 AIO . Phanteks P600s Case ,TCL QM8B 50" 120 Hz TV,second 24 inch screen for charts you tube etc, and 11" touch screen for the EFB. Warthog Stick and TCA Captains throttle ( full pack) Velocity 1 Rudder Pedals , extreme3D for the Tiller,Streamdeck XL x2 / Streamdeck +/Streamdeck mini because i like pressing buttons
May 7, 20242 yr A properly functioning 1000W PSU is plenty of power for that system. The relatively small voltage drop from running via even a really long extension cord shouldn't be an issue, either, as nearly all switching PSUs for PCs are designed for multi-voltage use and can function with voltages as low as 100v. Cable pinouts vary between PSU makers, so your Corsair cables would not necessarily work on a Be Quiet PSU (in fact using the wrong cables can put voltage where it doesn't belong and let the magic smoke out of a $2000 GPU). So if you were using the power cables that came with the Be Quiet PSU and they were plugged into the proper sockets in the PSU, and there was no power to the GPU, then more than likely it's either a bad PSU or a bad cable out of the box. Also, *never* use a single cable to make multiple connections to the GPU adapter using the PSU cable's daisy-chained second connector on a 4090. You need four separate cables from the PSU to the GPU's "spider" VGA-to-12VHPWR cable adapter on that GPU. You said "either of the supplied 12v cables" which makes me suspect you're only using two. Any decent computer shop should have a PSU tester that can load the PSU and check its output. Bob Scott | President and CEO, AVSIM Inc ATP Gulfstream II-III-IV-V Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090 Samsung 55" JS8500 4K TV@60Hz, 3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090 Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus, TM TCA Officer Pack, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case
May 16, 20242 yr Author On 5/7/2024 at 3:48 PM, Bob Scott said: A properly functioning 1000W PSU is plenty of power for that system. The relatively small voltage drop from running via even a really long extension cord shouldn't be an issue, either, as nearly all switching PSUs for PCs are designed for multi-voltage use and can function with voltages as low as 100v. Cable pinouts vary between PSU makers, so your Corsair cables would not necessarily work on a Be Quiet PSU (in fact using the wrong cables can put voltage where it doesn't belong and let the magic smoke out of a $2000 GPU). So if you were using the power cables that came with the Be Quiet PSU and they were plugged into the proper sockets in the PSU, and there was no power to the GPU, then more than likely it's either a bad PSU or a bad cable out of the box. Also, *never* use a single cable to make multiple connections to the GPU adapter using the PSU cable's daisy-chained second connector on a 4090. You need four separate cables from the PSU to the GPU's "spider" VGA-to-12VHPWR cable adapter on that GPU. You said "either of the supplied 12v cables" which makes me suspect you're only using two. Any decent computer shop should have a PSU tester that can load the PSU and check its output. i know its late but thanks Bob ROG Crossair Hero X670e , 9900X, TUF 4090 , X4 NVME's. OS 2TB 980 Pro , MSFS 2TB WD Black , Kington Fury 64GB ram ( 6000) Corsair RM1000 PSU, Artic Freezer iii 360 AIO . Phanteks P600s Case ,TCL QM8B 50" 120 Hz TV,second 24 inch screen for charts you tube etc, and 11" touch screen for the EFB. Warthog Stick and TCA Captains throttle ( full pack) Velocity 1 Rudder Pedals , extreme3D for the Tiller,Streamdeck XL x2 / Streamdeck +/Streamdeck mini because i like pressing buttons
July 15, 20241 yr The PSU cabling is not exchangeable among PSU brands Keep the type of PSU cables brands together The pins could have different voltage Take your time to read about it AMD 9950X3D, Nvidia 5080, custom-made liquid-cooled OEM Virpl throttle, Control panel, and Collective Gufighter flightstick
July 24, 20241 yr On 7/15/2024 at 7:37 AM, Stefti said: The PSU cabling is not exchangeable among PSU brands That issue has been allowed to exist for far too long. There should be some standardisation for this but there is no one to enforce that unfortunately. Edited July 24, 20241 yr by orchestra_nl Flightsim rig: CPU: AMD 5900x | Mobo: MSI X570 MEG Unify | RAM: 32GB G.Skill Trident Z Neo | GPU: Gigabyte RTX 3090 | Storage: M.2 (2 & 4 TB) | PSU: Corsair RM850x | Case: Fractal Define 7 XL Display: Acer Predator x34 3440x1440 | Speakers: Logitech Z906 Controllers: Fulcrum One Yoke | MFG Crosswind v2 pedals | Honeycomb Bravo Quadrant |Thrustmaster TCA Quadrant | Stream Deck XL & Plus | TrackIR 5 Tobii eye tracking
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