Originally posted by: Kensai
Think about this for a rig:
Dual AMD Opteron 275s
Tyan K8WE
Dual Quadro FX 4400s
12 SCSI/SATA drives
etc. etc.
OK, now read the following review for the PCP&C 510 and reevaluate just what it would take to really stress an 850W version, and simply how ridiculous a product like this is:
High-End Power Supply Match-up
"The final test we ran on these power supplies involved loading them down with a large amount of hardware to see if they could stand up to everything we could throw at them. Here's the setup we chose for this testing:
Tyan Thunder K8WE
Dual Opteron 252 CPUs
4GB Corsair PC3200LL Memory (8x512MB)
NVIDIA Quadro FX 3400 PCI-E
NVIDIA GeForce FX 6800 GT PCI-E
Sound Blaster Audigy 2 ZS
10 Hard Disk Drives:
2 x Western Digital Raptor 74GB SATA
2 x Seagate Barracuda SATA V 120GB SATA
2 x Seagate Cheetah 15K.4 146GB U320 SCSI
2 x Seagate Cheetah 15K.3 73GB U320 SCSI
1 x Seagate Cheetah 10K.7 300GB U320 SCSI
1 x Cheetah X15 36LP 36GB U160 SCSI
What this did was load the system to the maximum in terms of processors, motherboard resources, memory, video cards, and hard disks. Since the SilverStone supply came with 10 drive connectors, we only felt it was right that you should be able to use all of them. Since the PC Power and Cooling came with 9 connectors total, we simply used a splitter to power two of our drives.
For this test
we ran all drives under a max load sequential read and drove both video cards by running two games, one on each video card, in a dual monitor setup. This should mean that almost all components pulled full power from the supplies. This test ran for over an our to ensure that the load could be handled over time.
The results of the test showed that both power supplies could handle this load without any problems.
Neither power supply had any dips in output and the system didn't exhibit any instability. Although we were concerned about the SilverStone running out of juice on one of its 12V lines, this didn't seem to be a problem. It appears that there is enough power on each line for what the SilverStone is designed to have connected."
Now realistically, how many people have a system even remotely close to the above tested system and run it under the conditions that this test was conducted, ignoring the fact it isn't even pratical? And this was a 510W PSU. Look how many people on this board are throwing out these wild recommendations that a person buying a single OC'd A64 with highend video card and a couple raptors can't get by on anything less than a 500W PSU, and that no one could possibly build a system today that doesn't require at least a 450W. It's ridiculous, the PSU manufacturers are laughing all the way to the bank over the stupidity and E-penis envy enthusiasts have acquired when it comes to PSU wattage ratings.
850W's? You could not build a useable home system that could make use of that much power unless you used it to power your fridge as well.