ups

  1. I

    Noise level of SMT1500RM2U

    Hi guys, I consider purchasing a rackmount UPS (SMT1500RMJ2U - same as the model in the title but for the Japanese market, e.g. 100V). Does anybody know how loud the fans of these units are when they are NOT running on battery power? APC states a value of 46db(A) on their website which would...
  2. M

    Is the APC Smart-UPS 1000VA a good buy for a silent UPS?

    Hi, I just found a 2nd hand APC Smart-UPS 1000VA (SUA1000UXI) with brand new batteries, which I'm considering to use for my FreeNAS server. In the NUT compatibility list (Network UPS Tools - Hardware compatibility list) this UPS is labeled as the worst possible: But what does this mean? *...
  3. N

    UPS dead, how do I go about troubleshooting/fix it? (Dell UPS 2700R)

    I got a Dell UPS 2700R (J727N) in 2017 (I got it "for free" when I bought a server rack). At that time, I lived in a small apartment and did not have the fuse (16A) or space (noise-wise) to run it. It did work perfectly back then, and I played around with it for about a week before putting it in...
  4. M

    DIY UPS capacity upgrade, success and failure

    I’d like to start off by saying I’ve used STH as a reference for a long time, but this will be my first post. I hope someone can find this valuable, if only as something to laugh at, or as a good warning. In all honesty, I will however say that while I won’t recommend that anyone do this...
  5. BeTeP

    Brand preferences for UPS batteries

    I have a couple of APC SUA2200RM2U UPSs which are due for battery replacement. It has been a few years since I shopped for batteries. I used to like Japanese brands. But many of the brands changed ownership, moved factories to China or just disappeared. So I did a quick Ebay search and there...
  6. WeekendWarrior

    Selecting, Finding, Shipping, and Installing a Silent Rack

    Over the last year or so I hoped to either build or buy a silent computer rack. During that time, I almost gave up several times because the cost and/or time involved was very substantial - whether I built (substantial time) or bought (substantial cost). Ultimately, I recently had two...
  7. S

    FS: APC SRT8KRMXLT 8kva 208v

    I have for sale a pair of APC UPS's SRT8KRMXLT that were purchased for a datacenter project that was abandoned. They were taken out of box but they have never even been hooked up to mains power. Some light scratches from being moved out of box but no dents. I still have the front covers in...
  8. N

    [Advice] Dell J727N 2700 W UPS

    Hi, I have a few questions regarding getting an ups. Back story I'm looking to get my first "proper" homelab, and was looking for a smallish server rack. And I think I found one – the only thing is that the seller is also selling a 4 year old Dell J727N 2700 W UPS. I have no experience with a...
  9. warlockedyou

    Will turning on my rack trip the Circuit Breakers?

    Hi all, This is my first time putting together a rack and I was wondering how to calculate how much power it will need? This rack is setup in a room where two out of three outlets are 2 pins, so I am left with plugging in the UPS directly to the wall to the single outlet. Here is the setup I...
  10. I

    Cooling a travelling server

    Good Morning, I am new to this forum but it looked like the best place to be for some of my future questions. For the moment though, just this. I am building a small rack server for a race team that will travel around with us from track to track, it is just an entry server, as all it is...
  11. Z

    2000VA+ UPS for Small ESXI and Unraid Cluster

    Hello all, I have a small, but fairly dense virtualization and storage network that needs 24/7 uptime (some VMs I host are crucial to operation at a few local businesses), currently afforded by two consumer Cyber Power "1500VA 900W" units (CP1500PFCLCD). I can get maybe 10-15 minutes each out...
  12. M

    FS: APC UPS 3000XL, extended pack, Share UPS, rails, $379

    As the title states... APC 3000XL, battery extender, Share UPS, rails The UPS is 30 AMP and will NOT work with a standard outlet. I don't have a way to test if batteries are good. I'm told by the previous owner that they held a charge for 4 days before dying without anything plugged in. But...