PSU Which one  | | 
June 11th, 2005, 08:31 PM
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#1 (permalink)
| | Member
Join Date: Sep 2003 Location: U.K.
Posts: 239
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June 11th, 2005, 08:47 PM
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#2 (permalink)
| | I am a banana!
Join Date: Jun 2002 Location: Texas Tech
Posts: 3,921
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I wouldn't recommend any of those sadly. The Q-tec specs are not listed at planetmicro or the q-tec website. The second one is a generic and so has absolutely no info on it. I can't find the website for the third one so I can't read the specs for it.
PSU's are hard to shop for, and the manufacturers don't help. The first thing is to ignore the power rating...they're worthless and never accurate. What you need to look at is the continuous amperage ratings on the different voltage rails. (I'm sure that was all gibberish). For example, my system is very similar to yours (except swap the 9800 pro for a 5900 ultra) and my power supply is a 300 watt PSU. However, it is also an Antec and a predecessor to the true power series and so is about as powerful as that 500 watt PSU you mentioned, if not more so. Also my power supply still has not given me any troubles, and so is a good example of power ratings not meaning much. A good friend of mine has a good way of describing them. The ratings they give are the "if struck by lighting ratings".
Generally speaking, you want a PSU that can supply at least 18 amps on the +12V rail. (don't worry about what that means, just simply that whichever PSU you choose meets or exceeds that spec).
Are there any other good websites in the UK for computer parts? | |
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June 11th, 2005, 08:47 PM
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#3 (permalink)
| | Instigator
Join Date: Oct 2001 Location: Healdsburg, CA
Posts: 12,257
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Of those three, I'd say go with the Q-Tec. It seems to be a decent PSU.  | |
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June 12th, 2005, 07:49 PM
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#4 (permalink)
| | Member
Join Date: Sep 2003 Location: U.K.
Posts: 239
| Quote: |
Originally Posted by originel
Are there any other good websites in the UK for computer parts?
| possibly www.ebuyer.co.uk
altough ive never bought from them , ive purchased from planetmicro before which is why they were th first port for me , id be grateful if someone could recommend any other site? | |
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June 12th, 2005, 08:51 PM
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#5 (permalink)
| | just passin thru
Join Date: Oct 2001 Location: SW, OHIO
Posts: 5,826
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I'd suggest looking for a site which lists the amps per rail or search for a power supply listed on there site and read up on the amps per +3.3v , +5v , +12v rails. Wattage without proper amps is worthless. I wouldn't go with anything with less than 25amps per rail.
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June 12th, 2005, 09:18 PM
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#6 (permalink)
| | Senior Member
Join Date: Jan 2005 Location: UK
Posts: 541
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June 12th, 2005, 09:26 PM
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#7 (permalink)
| | Ultimate Member
Join Date: Sep 2002 Location: Finger Lakes area
Posts: 2,375
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I don't think I'd trust any of those three with my machine. Some of the TT units are decent and so are TTGI/SuperFlower and Coolmax/ATNG.
.bh.
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