power supply total power and peak power

[alt123]

hi, i have an unused FSP group atx12v v2.2 sage+ power supply sitting here. the PSU manual says total power 350W, and peak power 400W. I would like to know if this power supply would provide enough power to a motherboard that recommends a 400W or greater power supply to meet expansion requirements.

im want to build a budget system and looking at the GIGABYTE GA-945GCM-S2C LGA 775 Intel 945GC Micro ATX Intel MB and i dont plan on using pci-e or any pci slots. Will the power supply be enough to boot the basic system?

Also, do most micro atx motherboards with PCI-E require at atleast 400W? Because i cant seem to find any old motherboard on newegg with AGP and just PCI. i dont even need PCI-E, sheesh

[pam123]

Take a deep breath.

AGP is not going to be supported in the future, it's dieing (dead) tech.
Power supplies are now ATX 2.0 .

You're planning on out-dated tech, .

Back up and re-read.

[alt123]

yeah, i realize agp is dead, but my question was mainly about this power supply and the difference between total and peak power. and would it be ok for that gigabyte motherboard

[TwoRails]

For a "basic" system as you mention, it should be OK. AGP is only 1/2 dead. As you've found out, it's hard to find a good mobo with it, but a couple of manufacturers are still making modern cards for AGP. So, as long as your mobo holds out, you can run decent cards. All my systems are AGP, BTW

[Petef56]

Originally Posted by alt123 hi, i have an unused FSP group atx12v v2.2 sage+ power supply sitting here. the PSU manual says total power 350W, and peak power 400W. I would like to know if this power supply would provide enough power to a motherboard that recommends a 400W or greater power supply to meet expansion requirements.

Peak power is not the same as the 350W total power PSU rating. If the motherboard
specs call out for 400W PSU then I'd say you should buy a more powerful PSU
in the 400W to 500W range. Keep the 350W PSU around for a spare just in
case you suspect PSU problems in the future it will serve well just to test the
system to see if the PSU is good or bad, but i'd never use it as a permanent
replacement.

Based on actual expereince, I once had a system that speified it required a
400W PSU after upgrading a video card. the PSU was only rated at 350W
and it blew out in about 30 days. I replaced it with a 430W PSU and it's
been fine ever since.

---pete---