hoejholm Posted July 7, 2022 Share Posted July 7, 2022 (edited) On 5/4/2022 at 12:13 PM, Visuals said: Currently i'm running the following cunfiguration: Intertech IPC 4U-4420 Case AMD Ryzen 5 5600G 10x Sata drive 1x NVME be quiet! System Power 9 (500 W) When i add one more drive, then i suddenly get issues with my drives, they disconnect and are giving read errors etc. i suspect that my PSU is not strong enough to handle all of it. My Case can fit 22 HDD's and 2 NVME and i plan to fill them one after another. In this case i have 5 Molex connectors, each of them powers 4 drives. Do you have any suggestions about a power supply that can handle all this stuff? Thanks a lot for you help @Visuals Using this: https://outervision.com/power-supply-calculator When i punch in your data + random stuff in the places you didn't tell (memory eg), with 2nvme and 10 sata 7200rpm I get you need 17,2A on the +5v https://www.bequiet.com/en/powersupply/1280 says your PSU is max 15A on +5v... Could very well be your issue. Also, I get a combined 3,3+5v to be 131W, your PSU max is 110W Same spec but bumped to 20 HDD +2 NVME, we hit: +3,3v: 13A +5v: 22,5A - Combined 157w +12v: 26,1A I have had great experience using Intertech's ASpower PSU. This model fits your case model: https://www.inter-tech.de/en/products/psu/server-psu/aspower-r2a-mv0700 (There are other models, look up your model and look under acc.) The specs says: +3,3v: 30A +5v: 30A Combined max: 200w +12v: 58A This should keep you well in the clear, unless you have some crazy poweruser in the rack you didn't mentioned... Plus, its redundant. Notes: The website is a calculator, take everything as an estimate. (with 20+ drives the difference between power hungry and power-saving drives becomes a thing...) Edited July 7, 2022 by hoejholm 1 Quote Link to comment
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