Long story short, my 6-years old PC is having some weird crashing issues, where the system seemingly goes into standby mode and doesn't react to either the power or reset buttons, and the PSU has to be manually turned off for a restart. I've eliminated pretty much any possible software source (short of a full Windows reinstall), so I'm afraid either my PSU or my Mobo is dying.
My money's on the PSU, because honestly, this is a bit of a "ship of theseus" situation here, where I replaced the CPU, the RAM, the M.2 SSDs, and the GPU (three times) since I originally put the system together, more or less doubling the original power draw, and as it turns out, the 700w FSP Hyper K power supply the PC tech who originally assembled the case recommended isn't exactly super-reliable.
So, I'm planning to switch that out and see if things improve, so I spent half the afternoon researching locally available PSUs, and I narrowed it down to the following:
Deepcool Gamerstorm PQ750G 750W - The cheapest one on the market, a little under the equivalent of $100 with shipping. Not particularly outstanding, but I haven't seen any big complaints about it.
ASUS Prime 750W 80 PLUS Gold - A bit pricier, at around $110-120 with shipping, but seems to be a good all-rounder.
Thermaltake Toughpower GT 750W 80 PLUS Gold - Same deal as the ASUS one, and roughly in the same price category.
Corsair RM750e 2025 750W - This one I've seen actively recommended, but it's in the $145-150 range, which makes it a bit iffy.
I would appreciate any second opinion on these.