help with PowerChute APC software

[wingfan]

I just built a new system with the specs
i7 4770K
asus z87-k
8GB GSkill Ripjaws 1600Mhz
Samsung SSD 120GB
WD Black 1TB
Corsair 750TX PSU
Windows 8 64bit

and when I plugged my ES 750 into it, and installed the PowerChute software, I bring up the Current Status, load on battery is only showing 58W max to 75W. Now I also have my 22" LCD monitor plugged in and a cable modem into the battery backup outlets.

NOW I used my same ES 750 on my other system which has specs

Q6600
asus p5q pro
8 GB Mushkin 800MHz
WD 500 GB black
WD 1TB black
Antec 500W
Windows 8 64bit

and with Current status load on battery shows up as 171W -- 225 W max

So my question is why is the i7 system that much lower on the PowerChute software? Do I even need the ES 750 for it.. as I want to get a battery backup but maybe I can get a lower ES 550 instead for that? I want the PC to shutdown in 5 min or so incase of power outage i dont need more then that time.

 

[Someone Somewhere]

Your new build is showing up right where I'd expect it; Haswell has lots of idle power savings and other goodness, plus it's probably spinning down the HDD. PSU is likely more efficient.

Your old build is built around an older, more power hungry platform, with multiple HDDs (which may or may not be spinning down), and a less efficient PSU.

I don't see any mention of GPUs - integrated graphics? Your old system doesn't have an iGPU.

You should be OK with the 550VA one, though I'd be more worried if you dropped a powerful GPU (or two) on it. But if you've already got the 750VA, why buy another?

 

[wingfan]

Oh forgot the new system is using the 4600HD i7 integrated gpu. The old system is using radeon 4870 1GB gpu.

I don't plan on using a gpu in new build.

I need another backup because they won't be in same location. So something like the 330W backup is ok for new build?

 

[Someone Somewhere]

That would do it. GPUs are major power suckers.

330W would just do it, including the screen. Especially as the APFC would likely help you get the most watts out of your VAs.

 

[wingfan]

Ok thanks so say I drop a 650GtX in there how much can I expect it to raise? Think I still should get the 550VA (330W)?

 

[Someone Somewhere]

Note that the 60% watts to VA conversion factor is a ballpark guess based on the power factor. Most newer PSUs are closer to 0.95 (95%).

There is a monitor too though, but you should be fine.

If you've already got the 750VA, you might as well keep it.