Posted: 8/18/2026 11:09:45 AM EDT
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Im thinking either a "NVIDIA RTX PRO 4000 Blackwell Graphic Card - 24 GB GDDR7 ECC - PCIe 5.0 x16- 192-Bit - 1x Slot" or a "NVIDIA RTX 4500 Ada Generation 24GB Graphics Card, GDDR6 PCIe 4.0 x16", assuming they'll work in my system, please help me figure this out as well as what PSU will fit in there. Im guessing itll need a new PSU. Theres no stickers or stamps or anything on the existing PSU, the bill of sale has this which I guess means its a 300watt: 74KVY : MOD,LBL,REG,FSJ,300W,3650VW9XVLBL,REG,FSJ,300W,3650 Its got no USB4 or thunderbolt $ sudo dmidecode | grep -i "Product Name" Click To View Spoiler $ sudo dmidecode -t slot Click To View Spoiler So I guess, which PSU can I buy that will have the correct plugs for my motherboard |
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RTX 4000 was a factory option on that model. You likely already have a PSU that has the appropriate connections. It's only a 140w GPU. Otherwise, as long as your board doesn't have any proprietary connectors any PSU should be fine. You don't need anything crazy like 1000w. 500w is probably plenty. |
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ok this is promising then. I did order the dell 460w, just to be on the safe side. the pny model of that card has the newer 16pin (12p+4p) power connector, that new PSU I ordered has a 6pin and a 6+2pin power output. The PNY does come with some kind of adapter but its not exactly clear what all sockets it has are. Im ordering that card as well, hopefully its as simple as just a 6/8 adapter that I need then |
I’ll lead an effective strategy to mobilize trunalimunumaprzure.
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If you are going to use a GPU with the 12VHPWR or 12V-2x6 do not use a 2 to 1 or 3 to 1 PCIE adapter. The 4 pins are communication wires to use with ATX 3.0/3.1 PSU's so the PSU is providing the card with the right amount of power it requests. If you use the adapter the PSU just sends the power and hopes the GPU is happy. They are also the majority of the cases of melted connectors. The adapters are super stiff and a lot of people end up having to bend them to fit in the case. This puts uneven pressure on the pins and these connectors are super finicky. If a pin doesn't have good solid contact inside the connector there is a real risk of melting/burning the connector. A PSU is not a place to skimp on cost and my advice is not buy one that doesn't natively support the components in your PC. |
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Well crap as best I can tell it had this: PCIe Graphics Connectors: 1x 6-pin connector at approximately 11 inches and 1x 8-pin (6+2) connector at approximately 14 inches on the same cable harness The board is only a 145w board, and the PSU is well larger than needs be. I'll just make sure I follow your guidance in the form and fitting when I put it all together. I didnt want to get a different psu i wanted a dell factory replacement that I knew was built for my case |
I’ll lead an effective strategy to mobilize trunalimunumaprzure.
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Originally Posted By Bophades: Well crap as best I can tell it had this: PCIe Graphics Connectors: 1x 6-pin connector at approximately 11 inches and 1x 8-pin (6+2) connector at approximately 14 inches on the same cable harness The board is only a 145w board, and the PSU is well larger than needs be. I'll just make sure I follow your guidance in the form and fitting when I put it all together. I didnt want to get a different psu i wanted a dell factory replacement that I knew was built for my case That is another thing. Some PSU cables come with two connectors on the one end of the cable. PCIE 8 pin is rated 150W per cable not connector. Just because there are two usable connectors on the same cable does not magically double the wattage out of the PSU. And if you do use an adapter for the 12v-2x6 connector you should not plug a 6 pin into it or that type of cable that has two connectors on the end of the same cable. As long as the case supports ATX power supplies you do not need to use a Dell PSU. They are just re-branded anyways. There is a small handful of companies that make PSU's. Most companies that sell them are buying them from the OEM's with their label on them. A company like Corsair can sell 5 different PSU's from three different manufactures. What matters is the quality of the components, features, and ratings. |
ok so wtf then. I cant find any PSUs that natively have the 'CEM5 16-pin' that the PNY card has which is a wonky 2x6 connector with 4 smaller pins in the center of 1 side. And Im not seeing anything "8pin" either. I see TONS of PSUs with 6pin and also some with "6+2pin" which i mean im just guessing that is an "8pin" there, not sure why there even is a distinction with 6+2? anyhow, given that this GPU Im getting, the vendor told me specifically that is was not a Y cable, just has 2 ends with a plug on each end. Additionally they clarified: PSU side: 1 × PCIe 8-pin / 6+2 GPU power connector GPU side: 1 × 16-pin CEM5 connector Since we know my PSU has a 6+2p and that plug does 150w and my card is a 145w, I guess Im set. Im not sure how those 4 control pins ever get engaged though, or if in my case there will comms between the PSU and GPU to discuss power delivery. I mean wtf is going on with those other 8 pins? |
I’ll lead an effective strategy to mobilize trunalimunumaprzure.
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Originally Posted By Bophades: ok so wtf then. I cant find any PSUs that natively have the 'CEM5 16-pin' that the PNY card has which is a wonky 2x6 connector with 4 smaller pins in the center of 1 side. https://ae-pic-a1.aliexpress-media.com/kf/S7aa21c5bd5224b0ebf6badc4fe736c78J.jpg And Im not seeing anything "8pin" either. I see TONS of PSUs with 6pin and also some with "6+2pin" which i mean im just guessing that is an "8pin" there, not sure why there even is a distinction with 6+2? anyhow, given that this GPU Im getting, the vendor told me specifically that is was not a Y cable, just has 2 ends with a plug on each end. Additionally they clarified: Since we know my PSU has a 6+2p and that plug does 150w and my card is a 145w, I guess Im set. Im not sure how those 4 control pins ever get engaged though, or if in my case there will comms between the PSU and GPU to discuss power delivery. I mean wtf is going on with those other 8 pins? Originally Posted By Bophades: ok so wtf then. I cant find any PSUs that natively have the 'CEM5 16-pin' that the PNY card has which is a wonky 2x6 connector with 4 smaller pins in the center of 1 side. https://ae-pic-a1.aliexpress-media.com/kf/S7aa21c5bd5224b0ebf6badc4fe736c78J.jpg And Im not seeing anything "8pin" either. I see TONS of PSUs with 6pin and also some with "6+2pin" which i mean im just guessing that is an "8pin" there, not sure why there even is a distinction with 6+2? anyhow, given that this GPU Im getting, the vendor told me specifically that is was not a Y cable, just has 2 ends with a plug on each end. Additionally they clarified: PSU side: 1 PCIe 8-pin / 6+2 GPU power connector GPU side: 1 16-pin CEM5 connector Since we know my PSU has a 6+2p and that plug does 150w and my card is a 145w, I guess Im set. Im not sure how those 4 control pins ever get engaged though, or if in my case there will comms between the PSU and GPU to discuss power delivery. I mean wtf is going on with those other 8 pins? CEM5 16 pin is a 12VHPWR connector  "CEM5" refers to the PCIe Card Electromechanical (CEM) 5.0 specification, which is the official standard that introduced this 16-pin design (12 main power pins plus 4 small sense pins) to deliver up to 600W of power to modern GPUs. Note: Depending on when the PNY card was manufactured, it might actually use the newer 12V-2x6 connector (part of the CEM 5.1 revision). The 12V-2x6 is physically compatible with 12VHPWR cables but features shorter sense pins to prevent the melting issues that affected the original 12VHPWR design. |
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