I have a 380w power supply and it requires a minimum 400w. Will it really affect performance if I don't upgrade.

-Any recommendations if I do need to upgrade.

Thanks

Is that an Antec TP 380W? If yes, then I would try it with that PSU and stress it with 3DMark run. If the PSU is insufficient, then you might get instability issues or reboots. What are the rest of your system specs? Include all optical and HDD...

-Kingston 2x512MB PC5400 DDR2 675MHZ
-Thermaltake Jungle 512/Socket 775 CPU Cooler
-Intel D915GEVL Socket 775 Motherboard
-Intel P4 530 3.0Ghz 1MB Cache 800fsb Socket 775 HT
-BENQ DVD+-R R/W 16x
-DVD Drive
-2 - SATA HDD - 1- 200 GB and 1 100 GB
-380W PSU - can't remember the brand
-BFG 7800GT OC card
-SBLIVE sound card that's probably 5 years old

I think that pretty much covers it...

Then look and read from label!
It matters when cutting it that close...

I have been running an evga 7800 GT ocd in my dell 8400 with the stock 350 watt psu. I have more items, ram, 3.2, sound and capture cards, than you, and am having no problems whatsoever.

288 watts is the highest consumption I have recorded, running BF2.

About 35 days so far, and stable as a rock.

I will look, but I'm not at home right now.

Thanks, report back with make and model, and the spec rating power on the sticker.

Will do!

It's an Antec True 380 and here's the label:

DC Output ......+5V.........+12V.........+3.3V........-5V........-12V.......+5V S
Max.................35A..........24A............28A.........0.5A........1.0A........2.0a
Min...................0A............0A .............0A...........0A..........0A...........0A

It will should work, is that the TruePower 380?
I would try it and see if any errors occur and check the voltages while running under a load.

It just says "True 380" . I have a picture of the label if you want it.

Thanks for your help.

That is a step down in quality from the TruePower series. Still good, just more for economy...

That is an Antec TruePower.

8) Well then it will still be fine, and is top line Antec

I would have to agree with you on that assessment.

Thanks for your input!

Merry Christmas