Your GPU draws more power than your old PSU was built for. The 12VHPWR cable is either missing or you're daisy-chaining three 6+2 pins and hoping it holds. That's not a build — that's a fire hazard waiting for a Tuesday night render.
The GIGABYTE Gaming 850GM PG5 (GP-GME850GM PG5) handles it properly. 850W of clean, 80+ Gold-certified output with a native PCIe 5.0 16-pin cable — one plug, done. No adapters, no daisy-chaining, no anxiety.
90% efficiency at typical load means less heat in the case and lower power bills. The 135mm FDB fan keeps noise down while moving enough air to stay cool under sustained loads. A full protection suite (OVP, OPP, SCP, UVP, OCP, OTP, NLO, SIP) sits between your components and any voltage spike from the grid.
All-black embossed cables keep the build tidy. 850W is the sweet spot for a mid-to-high-end GPU with headroom — not overkill, not underpowered.
Ships from our warehouse. If it's on the shelf, it goes out fast
| brand | GIGABYTE |
| model | GP-GME850GM PG5 |
| wattage | 850W |
| certification | 80 PLUS Gold |
| form_factor | ATX 12V v3.1 (Intel) |
| pfc | Active PFC (>0.9 typical) |
| fan_type | 135mm FDB |
| efficiency | 90% at typical load |
| mtbf | >100,000 hours |
| dimensions_mm | 150 x 150 x 86 |
| input_voltage | 100-240 Vac |
| input_current | 10-5A |
| input_frequency | 50-60 Hz |
| cable_type | Embossed, All black |
| connectors_atx | 20+4 Pin x 1 (610mm) |
| connectors_cpu_eps | 4+4 Pin x 2 (600mm each) |
| connectors_pcie_16pin | 16 Pin x 1 (700mm) |
| connectors_pcie_6pin | 6+2 Pin x 4 (600mm + 150mm x2) |
| connectors_sata | SATA x 8 (600mm + 150mm + 150mm + 150mm x2) |
| connectors_peripheral | 4 Pin x 4 (500mm + 150mm + 150mm + 150mm) |
| protections | OVP, OPP, SCP, UVP, OCP, OTP, NLO, SIP |
| power_good_signal | 100-150ms |
| hold_up_time | >17ms at 80% load |
