Low versus High Voltage for Proliant DL380 G3 & UPS R3000

[Patrick Lorden]

The specifications for the ProLiant DL380 has input voltage at 100-132VAC, 200-240VAC. Does this mean it can be connected directly to the HP UPS R3000 (high voltage) model? If so does anything have to be configured on the server side (switch) to accept the high voltage or will it automaticly configure.

Just want to make sure before I plug the server into the high voltage R3000 ups.

Also - If I was to purchase another UPS R3000, is there a business case where I should purchase the high voltage model instead of the low voltage model?

Thanks in advance.

[Steven Clementi]

Patrick:

I believe all G2 or better Proliant servers are auto sensing, maybe even some G1's but I am not sure.

This means that you can supply any voltage 110-120-130-210-220-240, etc... anywhere in the rated range and not have to worry about manually switching anything. Even HP laptop power supplies are autosensing, or at least most newer ones.

Always check out the server specs to make absolutey sure and call HP if you have to be 130% sure, but you should be ok with just plugging into the UPS.


Steven

[Mike Bollman_1 · Accepted solution]

The DL380 (event the old 1850R) can run on either 110V or 208V and will auto-sense accordingly. We recently converted our entire datacenter from Low voltage to high with zero problems. According to the UPS R3000 quick specs the high-voltage model includes 9 IEC 320-C13 plugs, which you could use to plug your server direclty into.

http://h18000.www1.hp.com/products/quickspecs/10671_na/10671_na.html#UPS%20R3000%20XR%20Model%20Matrix

Now I would personally perform a cold shutdown if you are moving a server from low voltage to high and not make a "hot" swap. I would imagine it would work, but I would want to test it first. As far as low vs. high goes, I have always been told high is more efficient. I'm no expert though on electrical loads.

[Mahesh Kumar Malik]

Hi Patrick

DL380 has Auto ranging power supply, so you can comfortably connect it to HP UPS R3000 (high voltage model). Nothing has to be configured on the server side.

Your doubt is quite valid

If you are planning to buy another UPS , you have to basically decide based on your local country Electrical Codes

Regards
Mahesh

[Patrick Lorden]

I am closing the thread based on the first three responses that are in consensus.