#MOLEX PERIPHERAL POWER CONNECTOR PC#

If you add those together, you end up with 16+17 = 33A x 12v = 396 watts. You see there it says 12v1 = 16 A and 12v2 = 17A The power supply can not provide the power for the video cards.

#MOLEX PERIPHERAL POWER CONNECTOR PC#

Main Gaming PC (old, still own) : Intel Core i7 7700K || GPU: GTX 1080 Seahawk EK X || Motherboard: Maximus VIII Impact || Case: Fractal Design Define Nano S || RAM : 32GB Corsair Vengeance LPXĬooling: EK XRES D5 100mm || Alphacool ST30 280mm w/ Vardars || Alphacool ST30 240mm w/ Vardars || Swiftech 3/8 x 1/2'' Lok-Seal Compressions || Swiftech EVGA Hydrocopper Block || Primochill Advanced LRT Orange || Distilled Rig: 2x X5690s || GPUs: 2x Radeon HD 7990 || Motherboard: EVGA SR-2 || Case: Corsair 900D || RAM: 48GB Corsair Dominator GT 2000Mhz CL9Įthereum Mining Rig: Pentium G4400 || Gigabyte Z170X-UD5 TH || 2x GTX 1060s (Samsung & Hynix) 1x GTX 1070 (Micron), 2x RX480s BIOS modded (Samsung), 1x R9 290X 8GB, 1x GTX 1660 Super = ~ 195 Mh/s Main Gaming PC (new): HP Omen 30L || i9 10850K || RTX 3070 || 512GB WD Blue NVME || 2TB HDD, 4TB HDD, 8TB HDD || 750W P2 || 16GB HyperX Black DDR4 While I wouldn't recommend using Molex adapters to power GPUs, I've used Molex for Risers, and they've been running for months with no issues. It lists a -5V rail, which was removed from the ATX standards almost 20 years ago! If you're going to mine cryptocurrency invest in a decent power supply. More resistance = more heat = more melting. The connector will melt.Īny time you add adapters you're adding extra resistance to the circuit with additional cable length and extra connectors. The smaller connector pins really are not designed for high current applications such as graphics cards. SATA power connectors also only have a single 12V cable, but the connector itself is rated for lower current. You'll overload the cable and end up with it melting. Even if you use two molex connectors to adapt to a PCIe connector they're still coming off the same cable and connector. 4 pin molex peripheral connectors only have a single 12V connector. Can I plug all 3 Arctic fans to a single 3 pin connector on the mobo? Can I use a male Sata to 6 pin connector to power an 8+6 pin GPU?ģ. Can I use a 2x Molex to 8 pin connector to power the GPU?Ģ. at 78% efficiency, if the power supply actually gives 300w to components, that's 78% of how much it takes from mains. The only things that use 5v these days are some onboard stuff (Chipset, network card, audio) and hard drives, so maybe 10-20 watts.Īlso. the label would make you think you have 3.3 x 30=99w + 5v x 30a = 249 watts on 3.3v and 5v which is a lie, most likely maximum 100-120 watts are possible on those voltages.īut. in theory, in practice like i said, no guarantee both rails can do maximum at the same time.Īlso, if you open it up and ask an expert, it's probably 90% likely that there's something like a total of 100-120 watts 'budget', for 3.3v and 5v and each 3.3v and 5A are probably maximum 15-20A each, not 30A. How about using a 3 fan to molex/sata then?Īgain, look at the actual specifications and not the product name or what they advertise : However, Ive read that the 3 pin motherboard connector usually supports 12v - 1A and as long as the combined fans dont add up to 1A is fine to use splitter (would be about 0.25A combined). That would solve the issue with the adapters. Would that be safe to use or should I go for a well known brand 500w-550w PSU like Corsair or Evga? I've seen a few Tooq Ecopower II 700w-750w quite cheap, but it doesn't have an 80plus rating.

It looks like I would algo need to get a PSU.

Molex peripheral power connector