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Thread ID: 58413 2005-05-31 05:26:00 Uninterrupted power supply - recommendations? Tony (4941) Press F1
Post ID Timestamp Content User
359969 2005-06-05 23:48:00 On reflection - it's possible that some makes may monitor the mains load, so as to give assurance that it can be sustained when the power fails. Don't rhink mine does though. godfather (25)
359970 2005-06-06 04:01:00 Thanks godfather, makes more sense now. I will probably just buy one and then stress test the CPU, video and hard drives so it's drawing maximum power - then turn the power off to make it run off the UPS. If the UPS can handle that at full load, then that'll be good. If not I will have to return it and get a better one. E|im (87)
359971 2005-06-16 22:15:00 Here's the latest:

I've been offered a APC 700 SmartUPS at what would be a very good price, from someone I can trust. It is 2.5 years old. It is not a current model. The specs are here (www.apcc.com). It says the max load is 700va /450w.

My questions are
(1) Should that be enough to run my Athlon 2.0/Nvidia FX5200 and Philips 19" CRT? It seems to be OK, but there have been a couple of odd things that make me wonder.

(2) Should I be able to add a second PC - PIII/450mhz, low level video card, Philips 17"CRT?

The answer to (2) appears to be no, as I get all sorts of warnings happening when I plug in the second PC, but I am not sure whether it is because the batteries are old/stuffed, or whether the device is just not grunty enough.

The RRP of the current ( ;) )equivalent is about $800, and I think I could get this for the same as (say) an APC 500ES, but I am wondering whether I wouldn't be better off to get a new beast with new batteries/warranty etc.
Tony (4941)
359972 2005-06-17 08:37:00 (1) Yes

(2) In your dreams :D

There's nothing wrong with the second-hand unit, but time the rundown with the power off on your primary computer and if it is less than 5 minutes fit a new battery. Buy a quality battery, or at least one with a good guarantee.

If you want to run two computers, buy a second UPS, it increases reliability (spreads risk) and will be cheaper than the size you will need to run two off one.

Cheers

Billy 8-{)
Billy T (70)
359973 2005-06-17 09:17:00 (1) Yes

(2) In your dreams :D

There's nothing wrong with the second-hand unit, but time the rundown with the power off on your primary computer and if it is less than 5 minutes fit a new battery. Buy a quality battery, or at least one with a good guarantee.

If you want to run two computers, buy a second UPS, it increases reliability (spreads risk) and will be cheaper than the size you will need to run two off one.

Cheers

Billy 8-{)I thought option (2) was optimistic!
I am starting to think the batteries on the machine I am trying are suspect. When I first connected it up it was carrying the load of the first PC and monitor OK, but now it gives me a "battery discharged" indication, although the monitor says the battery is 100%. It will run the PC, but adding the monitor makes it barf.

If I am up for new batteries I won't bother, as I would rather get a new unit that has the warranty etc for about the same price I was expecting to pay for the one I am trying.

My original plan was always to get two units, but the spec of the used one made me think that maybe I could get two for the price of one. ;)
Tony (4941)
359974 2005-06-17 11:41:00 If I am up for new batteries I won't bother, as I would rather get a new unit that has the warranty etc for about the same price I was expecting to pay for the one I am trying.

Offer half the previous asking price for the 700. At 2.5 years old and needing a battery it is worth about 30% of its price when new. The rest of it is probably OK. I'd certainly buy it if the price was right.

Cheers

Billy 8-{)
Billy T (70)
359975 2005-06-17 11:52:00 actually i think your pushing s*** uphill. i (was) running a 19" crt and 1.4tbird on 2x500VA (is ment to give 1000VAmax). run time wasn't long and if the monitor was off you couldn't start it without running the ups cutting out.

at 2.5 years old the batterys will be suspect and the cost of new batteries may make you choke!
tweak'e (69)
359976 2005-06-17 11:56:00 Offer half the previous asking price for the 700. At 2.5 years old and needing a battery it is worth about 30% of its price when new. The rest of it is probably OK. I'd certainly buy it if the price was right.Can't see the point of that. The RRP of today's equivalent model is ~$800. I was told they paid "thousands" for the 700 - maybe they did 2.5 years ago with a different exchange rate etc. I am sure they would take $250-300, but then I have to get batteries, (cost ???), and this unit has no surge protection, only UPS. I can get an APC 500 xx for $180-280 (depends on model) that will have new batteries, warranty, and a couple of surge protection outlets.

Or am I totally mistaken?
Tony (4941)
359977 2005-06-17 12:02:00 Tweak'e - do I understand from what you are saying that you think 500va is not enough to run my (1 PC) setup? Tony (4941)
359978 2005-06-17 12:15:00 with mine 1000va was only just enough. 500va will not run it. 700va might just but only just. the biggest problem is the monitor. without the monitor you might get away with a 500va and you will only have 5 min run time plus you will need the pc to ups connection and software to save everything and shut the pc down. tweak'e (69)
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