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Title: UPS backup on an s2 Post by: rkinnin on December 04, 2014, 08:56:21 PM My power has been abit erratic lately with quick bursts of outages. My concern that as winter continues to roll in more quick flickers of outages will occur. The s2 doesn't always reboot properly - I think its more a function of the power supply that BitMain used than anything. In order to keep the s2 alive I would like to install a UPS on it.
Any recommendations on the specific model from say APC ? Title: Re: UPS backup on an s2 Post by: pak13 on December 04, 2014, 09:02:30 PM My power has been abit erratic lately with quick bursts of outages. My concern that as winter continues to roll in more quick flickers of outages will occur. The s2 doesn't always reboot properly - I think its more a function of the power supply that BitMain used than anything. In order to keep the s2 alive I would like to install a UPS on it. Any recommendations on the specific model from say APC ? apc 3000va on ebay used. Alternatively, you could always put some caps on the 12v output with a slow charge circuit. Title: Re: UPS backup on an s2 Post by: philipma1957 on December 05, 2014, 01:22:29 AM yeah there is a good usa seller of big refurbished ups on ebay I will find a link
this seller is very good http://www.ebay.com/itm/APC-SMART-UPS-RT-3000-3000VA-2100W-208V-SURT3000XLT-/350959719941?pt=US_Uninterruptible_Power_Supplies&hash=item51b6d45605 http://www.ebay.com/itm/APC-SMART-UPS-XL-3000-Rackmpunt-3U-UPS-Extended-Run-Time-Option-/111312820775?pt=US_Uninterruptible_Power_Supplies&hash=item19eac2da27 this is a maybe . but my guess is this would work for you and it is cheaper http://www.ebay.com/itm/APC-SMART-UPS-2200VA-SU2200NET-TOWER-W-NEW-BATTERIES-/111392626002?pt=US_Uninterruptible_Power_Supplies&hash=item19ef849552 Title: Re: UPS backup on an s2 Post by: Soros Shorts on December 05, 2014, 01:40:37 AM My power has been abit erratic lately with quick bursts of outages. My concern that as winter continues to roll in more quick flickers of outages will occur. The s2 doesn't always reboot properly - I think its more a function of the power supply that BitMain used than anything. In order to keep the s2 alive I would like to install a UPS on it. Any recommendations on the specific model from say APC ? If you have reboot problems due to a marginal power supply check to see if your S2 already has the capacitor modification - https://www.bitmaintech.com/files/download/Guideline%20of%20Soldering%20Capacitor%20to%20S2.pdf. These mods are supposed to fix chip disabling problems but it also seems to fix reboot problems, at least for me. Title: Re: UPS backup on an s2 Post by: dogie on December 05, 2014, 12:39:09 PM How long are the outages you're trying to bridge?
Title: Re: UPS backup on an s2 Post by: wpgdeez on December 20, 2014, 12:01:33 AM If its going on all the time this is just a band aid.
Title: Re: UPS backup on an s2 Post by: rkinnin on December 29, 2014, 12:39:48 AM How long are the outages you're trying to bridge? not even 5 minutes....most of the time, less than 1 minute. Title: Re: UPS backup on an s2 Post by: Unacceptable on December 29, 2014, 01:22:15 AM Try Walmart,they have up to 800 watt ones for about $160 & free ship to store.I've gotten several from them & have had no problems.
Cyber power ones are just fine,just don't expect an 800 watter to supply 800 watts for more than 30 seconds,you gotta give leeway of about 20% to get several minutes of runtime ;) Here's what walmart offers: http://www.walmart.com/search/?query=cyberpower%20ups&typeahead=cyberpower Title: Re: UPS backup on an s2 Post by: pak13 on December 29, 2014, 01:28:54 AM How long are the outages you're trying to bridge? not even 5 minutes....most of the time, less than 1 minute. I stand by the APC 3000VA UPS's on ebay. Cheapest option for decent reliability. The downside, the batteries will need replacing every 3 to 5 years. Alternatively you could invest in remote power point/outlet, so if the S2 doesn't reboot correctly you can force a power cycle on it. I've had s3's after a brown out, that will "mysteriously" keep the IP network settings but reset the mining config to bitmain's. So when you walk past them, they all appear to be working but in fact, they are farming for bitmain, not you. 2 ways to fix that, a monitor on each worker from the pool you are using, and/or add specific routes to your router to redirect or null route bitmain's default mining config. |