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Should I buy a UPS?, for my desktop PC
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TristanX
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 Mar 21 2021, 09:44 PM
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Where is my stars?
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QUOTE(aidris87 @ Mar 21 2021, 08:50 PM) hi, may i know why need to calculate requirement based on VA? iinm the VA value is wattage required plus any imperfections in the equipment power factor due to capacitance/inductance. usually i will choose any VA as long as its higher than my PSU rating. afaik the most important UPS rating is the battery AH (amp-hour) value. so if you need 1000W with 240V mains supply, your current draw will be roughly 4 amps. so for example if the blackout lasts for 1 hour you will need at least a UPS with 4AH battery capacity. Here. You multiply watts by 0.6. https://www.bit.com.au/news/how-long-will-a...s-go-out-316806 |
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wKkaY
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Mar 22 2021, 01:32 AM
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misutā supākoru
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QUOTE(Chengi @ Mar 19 2021, 07:15 AM) Why don't you make a call to TNB to report the issue? The place where I stay only blackout once several year (planned maintenance no count). How I know? I have a device that will not auto restart if there is any power failure. For now UPS seems like a best workaround. Having a UPS helps in reporting the issue, if you connect it to your PC and log the power outage occurrences. Years ago in Australia, my building voltage was too high and kept tripping my UPS alarm. I emailed the state's electricity grid with my logfile. Got a call back from them and within a week they rectified the problem. |
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zioburosky13
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Mar 22 2021, 10:57 AM
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QUOTE(kira_88 @ Mar 16 2021, 03:44 PM) Planning to buy a UPS so that atleast it will have a back up power in case of another blackout, and also not sure of which to get. Saw in shopee it can be as cheap as 100+ up to thousands Absolutely. You never know when power outage could strike and lost all the work you are doing. Go for branded UPS for the better warranty coverage. |
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entiti77
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Oct 28 2021, 09:35 PM
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New Member
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Question : Do you switch off the UPS when not in use? My APC UPS only connected to PC and monitor, after shutting down the PC and monitor I always turning off the UPS by clicking the power button, but it's still charging because i dont switch off the wall plug, it just cutting off the output power to PC/monitor. Do i need to turn off the UPS power button everytime when not in use?
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technod
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Oct 29 2021, 04:43 AM
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Getting Started
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QUOTE(entiti77 @ Oct 28 2021, 09:35 PM) Question : Do you switch off the UPS when not in use? My APC UPS only connected to PC and monitor, after shutting down the PC and monitor I always turning off the UPS by clicking the power button, but it's still charging because i dont switch off the wall plug, it just cutting off the output power to PC/monitor. Do i need to turn off the UPS power button everytime when not in use? yup its charging batteries because it's a backup unit. can safely turn off since u dont use it. |
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baby_4ever
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Oct 29 2021, 04:59 AM
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Getting Started
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QUOTE(kira_88 @ Mar 16 2021, 03:44 PM) So currently my house have like sudden blackout that can happen as frequent as few times a day or few times a week. Since I'm WFH now so quite annoying as I'm using a desktop so the PC will just suddenly turnoff everytime it happen and somtimes some of my documents are lost despite the recover option for microsoft office. Plus I'm thinking will there be negative effect on my hardware due to this? The power will just lost for few seconds only, 1 minutes top. Planning to buy a UPS so that atleast it will have a back up power in case of another blackout, and also not sure of which to get. Saw in shopee it can be as cheap as 100+ up to thousands Yea buy, avoid data OS corruption |
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baby_4ever
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Oct 29 2021, 05:00 AM
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Getting Started
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QUOTE(entiti77 @ Oct 28 2021, 09:35 PM) Question : Do you switch off the UPS when not in use? My APC UPS only connected to PC and monitor, after shutting down the PC and monitor I always turning off the UPS by clicking the power button, but it's still charging because i dont switch off the wall plug, it just cutting off the output power to PC/monitor. Do i need to turn off the UPS power button everytime when not in use? No need to turn of at all |
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baby_4ever
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Oct 29 2021, 05:02 AM
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Getting Started
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QUOTE(kira_88 @ Mar 16 2021, 04:39 PM) My current setup power draw never exceed 400w even on full load stress test despite using a 1000w PSU and this actually include my speaker and printer on. Around 140w idle/some light activity(browsing,excel,power point) and 350w gaming. So is it safe to use 400w for calculations? 400 / 0.6 = 666.67VA 800-1000va ups should be enough right as 2000va is expensive  UPS will beep, at least it can trigger auto hybernation mode. If you on SSD this be quick like 1 minute procedure. |
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entiti77
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Oct 29 2021, 05:53 AM
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New Member
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QUOTE(baby_4ever @ Oct 29 2021, 05:00 AM) No need to turn of at all The UPS unit is not in use, does it mean harmful because it keeps charging the batteries? |
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entiti77
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Oct 29 2021, 05:55 AM
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New Member
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QUOTE(technod @ Oct 29 2021, 04:43 AM) yup its charging batteries because it's a backup unit. can safely turn off since u dont use it. Do you mean it is safe to turn off the UPS unit only, no need to turn off the wall switch? |
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baby_4ever
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Oct 29 2021, 10:55 AM
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Getting Started
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QUOTE(entiti77 @ Oct 29 2021, 05:53 AM) The UPS unit is not in use, does it mean harmful because it keeps charging the batteries? No, batteries on maintenance mode and always online ready to kick in incase power trip. Charging on full cycle only take place if it is in use to makeup for power loss. No harm. Get good brand like APC, they even have software linked to APC hardware. |
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alandhw
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Dec 1 2022, 11:42 AM
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Hi, seeking for opinion.
I having PSU (1000watt) while my total CPU consumption(690watt). I should go with 900watt UPS or 1200watt UPS?
Meanwhile, appreciate if any user experience share for Neuropower or Prolink brand
Thanks.
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TristanX
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Dec 1 2022, 12:15 PM
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Where is my stars?
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QUOTE(alandhw @ Dec 1 2022, 11:42 AM) Hi, seeking for opinion. I having PSU (1000watt) while my total CPU consumption(690watt). I should go with 900watt UPS or 1200watt UPS? Meanwhile, appreciate if any user experience share for Neuropower or Prolink brand Thanks. Calculation already posted.... 1000 / 0.6 = 1666.66 VA Recommended at least 1700VA |
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alandhw
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Dec 1 2022, 12:28 PM
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QUOTE(TristanX @ Dec 1 2022, 12:15 PM) Calculation already posted.... 1000 / 0.6 = 1666.66 VA Recommended at least 1700VA Thanks. Actually i am confuse with the UPS power supply should be greater than PSU power or actual CPU power usage? Although i having 1000watt PSU, but the power usage is much more lower which is max at 690watt |
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TristanX
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Dec 1 2022, 12:31 PM
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Where is my stars?
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QUOTE(alandhw @ Dec 1 2022, 12:28 PM) Thanks. Actually i am confuse with the UPS power supply should be greater than PSU power or actual CPU power usage? Although i having 1000watt PSU, but the power usage is much more lower which is max at 690watt Of course UPS should be more powerful than PSU. Unless you wanna trigger overload. This one is hard. If you wanna cheap out based on power usage, its your call. Be prepared for overload triggers. |
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alandhw
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Dec 1 2022, 12:58 PM
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QUOTE(TristanX @ Dec 1 2022, 12:31 PM) Of course UPS should be more powerful than PSU. Unless you wanna trigger overload. This one is hard. If you wanna cheap out based on power usage, its your call. Be prepared for overload triggers. Got it. I shouldn't risk the PC by saving 100++ Thanks! |
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ZzZzz...
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Dec 8 2022, 03:59 PM
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looking to purchase a UPS for my office,
question: does UPS come with Surge protector?
P/s: UPS will connect to 2 Office PC (mainly for Accounting)
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Ronin_Amin
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Jan 15 2023, 02:15 PM
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Tumpang thread, are UPS with extra features like power regulator and pure sine wave worth it for personal pc use?
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backwards
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Dec 29 2023, 09:13 AM
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New Member
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I haven't used UPS for many years. I think 20 years ago it was using acid lead batteries, which doesn't last long and short life span.
Today I saw something that got me thinking. There's a lot of camping power supply available using lithium batteries. I'm wondering if we can use it like a UPS? I guess it will last longer. Not sure how it will hold up if the unit is being plugged in all the time and rarely any power cuts, but just wanted to discuss the possibility
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babylon52281
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Dec 29 2023, 10:55 AM
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QUOTE(backwards @ Dec 29 2023, 09:13 AM) I haven't used UPS for many years. I think 20 years ago it was using acid lead batteries, which doesn't last long and short life span. Today I saw something that got me thinking. There's a lot of camping power supply available using lithium batteries. I'm wondering if we can use it like a UPS? I guess it will last longer. Not sure how it will hold up if the unit is being plugged in all the time and rarely any power cuts, but just wanted to discuss the possibility Those portable power supply are for just that; portable. Their not meant to keep your PC/whatever appliance continue running if your TNB suddenly cuts out as these are not designed for instant switchover to battery power. Those UPS that dont last are due to undercapacity. For power hungry use, get those with dual/quad batteries. |
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