UPS beeping continuously

srikar69

Reputable
May 4, 2015
19
0
4,510
i have a Mercury Maverick 650 VA ups which i was running for nearly 25 days without problems .
Now suddenly when i was playing fifa 15 and when the main power went it was showing a red light and giving a continous beep (according to which its a fault - in the manual ) and finally the pc shut down the same moment !
my pc specs are-
cooler master thunder 450w
gtx 960 asus stix
i5 4440

those are the main power consumers so i mentioned only those

Moreover , when i am not playing any game or just browsing the net the ups gives the normal backup of 10-15 mins still..but when i start playing ac unity or fifa 15 the system abruptly turns off with the red beeping thing . As mentioned before i was playing the same games before too and i did not have any problem this started just today .

also for troubleshooting i removed my monitor cable from ups , but still the problem persists .
Thanks for your precious time guyz.. !! expecting a reply soon..
 
Solution


How many hard drives do you have? You forget the motherboard which draws wattage as well. Your system if you throw it into a PSU calculator asks for a minimum of 350 watts (with only 1 hard drive, a keyboard and a mouse). Not only that if your PSU is Active PFC it is sensitive to the power it gets. The Maverick puts out a modified sine wave (basically simulated) which is known to cause issues with Active PFC PSU's, and hence will cause the same fail condition. BTW Many people mistake TDP for max power, TDP is only a specification of how much power the cooling system should dissipate for...
650va is putting out maybe 300watts tops. Your system (and everything plugged into it) is likely drawing more wattage than the UPS can put out when you're playing a game and so the UPS goes into instant fail. Even when running off wall power UPS's are limited to the power output they are designed for with a margin of maybe 10%. It may have just about worked when it was new, but once the battery settled in the system is limited.

Short answer, you need a bigger UPS.
 


How many hard drives do you have? You forget the motherboard which draws wattage as well. Your system if you throw it into a PSU calculator asks for a minimum of 350 watts (with only 1 hard drive, a keyboard and a mouse). Not only that if your PSU is Active PFC it is sensitive to the power it gets. The Maverick puts out a modified sine wave (basically simulated) which is known to cause issues with Active PFC PSU's, and hence will cause the same fail condition. BTW Many people mistake TDP for max power, TDP is only a specification of how much power the cooling system should dissipate for the component to stay within the thermal limits in extreme conditions.

You're either overdrawing the UPS somehow (entirely possible, as usually the margin for overload on wattage is like 5-10% tops on high end units), or the PSU is too sensitive to the power output under a heavy load (such as gaming).

I actually bought a true sine wave UPS from cyberpower for this reason. I also have a tripplite sine wave for my network hardware and server for the same reason.
 
Solution
Thanks a lot ..! i do have only one hard disk - a wd caviar blue ..and the motherboard is not a special gaming one its b85m g43 . well, then what should i do ? Should i try changing the battery ? the gpu draws 144w under torture test according to tomshardware . And the maverick box has line interactive ups written on it , how can i know if the next UPS is buy under any situation will be a true sine wave ? plz reply , this is my last question
 


So first thing you need to look for is va, in your case you want at least 850va, if you get a good deal 1000va is even better. Most 1000va units will give you 600 watts minimum (some will be up to 800 watts) which is a very comfortable margin. Cyberpower has the PFC Sinewave series such as this unit:

http://www.cyberpowersystems.com/products/ups-systems/pfc-sinewave-series/CP850PFCLCD.html

They are by far the most cost effective. APC and Tripplite make sine wave units too but they are more money. I didn't see any reasonably priced ones from Mercury. That said the other possibility is its just too small, so you can try just getting one with a lot more output, as I said, overdo it with a 1000va unit and you will have more than enough. Being that it does work when not being driven hard, the lack of power is probably the more likely issue vs sine wave power.