DIGIT-ARC read-only archive · snapshot: July 23, 2026

Good UPS > 600W

8 posts · originally from https://geek.digit.in/community/threads/good-ups-600w.118610/

asingh
asingh Original post #1
Jun 23, 2009 at 11:59 AM
Hi,

I just installed a 2nd HD4890 on my system, so am running X-fire. Now something I did not foresee, my current UPS : APC 650VA only supports ~390W. At load I am almost pulling 550W+, and the APC 650VA is not supporting my system.

Any good UPS, which I should pick up, I guess one with 1100VA should be good, which can support a throughput of ~650W-670W...???
ashu888ashu888
Jun 23, 2009 at 1:05 PM
^^

wat PSU u having, corsair or Tagan.. ?? if u hv any one of them also, both are ACTIVE PFC PSU's wich means they will REQUIRE (its mandatory, so plz do not skip this) a PURE SINE WAVE UPS and a minimum of 1100VA rating UPS,

so go for APC's SMART UPS range of UPS and u will be fine with the system setup.. :)
-----------

Cheers n e-peace...
P
paroh #3
Jun 23, 2009 at 2:39 PM
using apc rs 1100 giving 20minute backup
asingh
asingh #4
Jun 23, 2009 at 2:50 PM
Hi...

You guys..mean something like this...

It is rated at 660W/1100VA, priced ~RS. 5565.

Here is the link.
ashu888ashu888
Jun 24, 2009 at 12:30 AM
^^

that is a BACK UPS range of UPS and that is NOT wat im talking about, but im talking abt this --> *www.apc.com/resource/include/techspec_index.cfm?base_sku=sua1500i (notice the "SMART UPS" name in the UPS of APC UPS) :)

NOTE: There is a difference b/w BACK UPS and SMART UPS range of APC UPSes,

SMART UPS=Pure sinewave UPS (wich u need rite now, as ur PSU is an Active PFC type and they need pure sine wave UPS)

BACK UPS=Stepped/modified Sine wave UPS (Wich ur PSU doesn't want, as later will create problems in ur Rig) :)
asingh
asingh #6
Jun 24, 2009 at 12:49 PM
^^

that is a BACK UPS range of UPS and that is NOT wat im talking about, but im talking abt this --> *www.apc.com/resource/include/techspec_index.cfm?base_sku=sua1500i (notice the "SMART UPS" name in the UPS of APC UPS) :)

NOTE: There is a difference b/w BACK UPS and SMART UPS range of APC UPSes,

SMART UPS=Pure sinewave UPS (wich u need rite now, as ur PSU is an Active PFC type and they need pure sine wave UPS)

BACK UPS=Stepped/modified Sine wave UPS (Wich ur PSU doesn't want, as later will create problems in ur Rig) :)

Oh..too bad for me..I got the one mentioned above...is supporting my system at full load now..! Jumped the gun..wanted to test Xfire out badly...!
B
Jun 24, 2009 at 7:45 PM
also consider microtek 1000va
ashu888ashu888
Jun 25, 2009 at 1:27 AM
Oh..too bad for me..I got the one mentioned above...is supporting my system at full load now..! Jumped the gun..wanted to test Xfire out badly...!
hmm.. so u hv a BACK UPS range of UPS... well, u (MAY) get sum problem , but not always.. :)
also consider microtek 1000va
Watever he may buy will be fine till the UPS is a PURE SINE wave .. :)