I have linked the Smart-UPS Online UPS units below for you to view: Our Smart-UPS Online models all output a pure sine wave when on battery and are double conversion online units. I will link our Smart-UPS product line below for you to view: With the exception of the SC420 and SC620, the Smart-UPS model line outputs a pure sine wave when on battery and is line interactive. If you would like any help sizing a UPS solution that would output a pure sine wave or be a double conversion online UPS, please do not hesitate to reach out via private message on this message board or phone, chat or email through our website. The network line could cause a ground loop as well. Also, you might want to look at whether you have a network line coming into the server that could be referencing a different ground than the server. You mentioned you had tried it with one power supply or the other as well as one UPS or the other, however, but you did not specifically say you had plugged both power supplies into one UPS. If you have not done so already, I would suggest trying to plug both power supplies into one UPS to see if the UPS will support the server when on battery. This could cause a ground loop which would cause the server to reboot when power fails. The only other thing that might make sense in this scenario is you have two UPS units that may be referencing different grounds. Do you happen to have an APC Smart-UPS 700 or higher on hand that you could test with just to see if it is the on battery wave form that is causing the server to shut off? The 1300 VA output of this unit does not equal 1300 watts of power output as this is not a unity power factor UPS. I did also want to mention that the BX1300 is only rated for a maximum output of 780 watts. This would explain why the server will not boot when the UPS is on battery. My first thought is to agree with David from Tripplite as the BX1300 does output a stepped approximated wave form when on battery and it looks like theĬyberPower OR2200 also outputs a simulated wave form when on battery. Leeland's power supply test results: AXX1500PCRPS Opens a new window Opens a new window Moreover, achieving platinum efficiency in the program is prettyĪ UPS with a true sinewave output on battery should resolve yourįor more information on the 80 plus program (where you can lookup your specific power supply), go to Plug Load Solutions Opens a new window Opens a new window. Virtually all 80 plus certified power supplies are power factorĬorrected, and these power supplies are sometimes picky about the input voltage Opens a new windowįrom the info you provided, the power supplies in your machineĪre APFC power supplies the giveaway is the 80 Plus Platinum certification forĮfficiency. I tried to find some info on that, I did find a link on Intel's site for the power supplies this server has, but it does not mention anything about Active PFC, so I would assume it doesn't have that. Any thoughts?ĭoes the server have active PFC? I've found that many of the standard UPS's will not support the active PFC power supplies. I tried digging around the server's BIOS for any power related settings, but I couldn't really find anything that might affect this. Its like it doesn't know it's plugged into a battery. And none of the activity lights on the front of the unit work either (LAN, power alert, etc). And the funny thing is, when I unplug the UPSs (And they switch to battery), the server won't even power on if I hit the power button. I've tried every configuration imaginable, using only one power supply or the other, using only one UPS or the other, making sure they're plugged in properly for battery backup, etc. The loads on either UPS are very low when running on AC power (see attached pics) The batteries are not new, but they still work great. The CyberPower has several other things, including a couple PCs, a couple switches, a firewall, internet modems, etc. The APC has only the server plugged into it, and has brand spankin' new batteries. Neither of these UPSs will keep the server powered on during power loss or flicker. If I unplug the UPSs, they keep literally everything else powered on, except for this one server, which immediately shuts off.Įach of the 2 power supplies on the server are plugged into a separate UPS. We have two UPSs - A CyberPower OR2200, and a APC Back-UPS XS 1300 We have a server - an Intel R2308WTTYSR 2U server with two 1100W redundant power supplies. Bit of a unique situation and hoping I can get some advice.
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