In article <VjjAg.50340$9d4.25253@fe2.news.blueyonder.co.uk >, "Pete"
<not@this.address> wrote:
> Paul wrote:
> > In article <eS2Ag.11699$Ca.3928@fe1.news.blueyonder.co.uk>, "Pete"
> > <not@this.address> wrote:
> >
> >> Pete wrote:
> >>> Paul wrote:
> >>>> In article <_S_zg.10219$Ca.1919@fe1.news.blueyonder.co.uk>, "Pete"
> >>>> <not@this.address> wrote:
> >>>>
> >>>>> I have just bought a Ultra Xconnect power supply 400watts to use
> >>>>> in conjunction with a AMD 3500+ and skt 939 board.
> >>>>>
> >>>>> Here it is:
> >>>>>
> >>>>
> > http://www.ultraproducts.com/product...&productID=304
> >>>>>
> >>>>> It says it supports Pentium 4 and AMD CPUs and meets ATX version
> >>>>> 2.03 and ATX 12V version 1.2 specification.
> >>>>>
> >>>>> When I bought it I thought it was the dogs bollocks but now I see
> >>>>> motherboards with 24 pin PSU connectors and wonder what's going
> >>>>> on.
> >>>>>
> >>>>>
> >>>>> Have I bought a lemon? Is it out of date? Has the ATX spec moved
> >>>>> on?
> >>>>>
> >>>>> Can you plug a 20pin ATX connector from the power supply onto a
> >>>>> 24pin connector on the motherboard and then use a 4 pin lead for
> >>>>> the remaining 4 pins or would I need a convertor?
> >>>>>
> >>>>>
> >>>>> The motherboard I want to use it with has the following
> >>>>> connectors:
> >>>>>
> >>>>> 24-pin ATX Power connector
> >>>>> 4-pin ATX 12V Power connector
> >>>>>
> >>>>> Would I need to buy extra cables / convertors to use it with this
> >>>>> board?
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>> Pete
> >>>>
> >>>> <----- ATX 2.0+ main connector -----> <--- ATX previous versions
> >>>> --->
> >>>>
> >>>> Pin Signal Color Pin Signal Color Pin Signal Color Pin
> >>>> Signal Color 1 +3.3VDC Orange 13 +3.3VDC Orange 1 +3.3VDC
> >>>> Orange 11 +3.3VDC Orange 2 +3.3VDC Orange 14 -12VDC Blue 2
> >>>> +3.3VDC Orange 12 -12VDC Blue 3 COM Black 15 COM Black
> >>>> 3 COM Black 13 COM Black 4 +5VDC Red 16 PS_ON# Green
> >>>> 4 +5VDC Red 14 PS_ON# Green 5 COM Black 17 COM Black
> >>>> 5 COM Black 15 COM Black 6 +5VDC Red 18 COM Black
> >>>> 6 +5VDC Red 16 COM Black 7 COM Black 19 COM Black
> >>>> 7 COM Black 17 COM Black 8 PWR_OK Gray 20 Reserved N/C
> >>>> 8 PWR_OK Gray 18 Reserved
> >>>> N/C (-5V)
> >>>> 9 +5VSB Purple 21 +5VDC Red 9 +5VSB Purple 19 +5VDC
> >>>> Red 10 +12V1DC Yellow 22 +5VDC Red 10 +12VDC Yellow 20
> >>>> +5VDC Red 11 +12V1DC Yellow 23 +5VDC Red
> >>>> 12 +3.3 VDC Orange 24 COM Black
> >>>>
> >>>> <--- ATX 2.0+ 12V for proc ------> <--- ATX previous
> >>>> versions --->
> >>>> Pin Signal Color Pin Signal Color Pin Signal Color Pin
> >>>> Signal Color 1 COM Black 3 +12V2DC Yellow/Black 1 COM Black
> >>>> 3 +12VDC Yellow 2 COM Black 4 +12V2DC Yellow/Black 2 COM
> >>>> Black 4 +12VDC Yellow
> >>>>
> >>>> Changes:
> >>>>
> >>>> 1) -5V removed, prev supplies probably had it. Usually not an
> >>>> issue. 2) Four addition pins on main connector. Extra +3.3V, +5V,
> >>>> +12V, GND Helps with PCI Express motherboards. For SLI boards,
> >>>> 24 pin recommended (to get two 6 amp pins to feed the two video
> >>>> cards via PCI Express slot connectors). For single video card,
> >>>> 20 pin is generally enough. 6600GT for example, draws 4 amps.
> >>>> Xbitlabs.com has measured many cards. If in doubt, do a detailed
> >>>> calculation. 3) 12V output split into two separate 12V circuits.
> >>>> No advantage to customer, due to need to allocate extra "slack"
> >>>> when buying. Perhaps intended to meet IEC60950 ? (To limit max
> >>>> power per 12V output) 12V1 feeds disks and motherboard (and video
> >>>> card) 12V2 used exclusively for processor (in your computer, that
> >>>> would be 8.24A)
> >>>>
> >>>> * 24 pin can plug to 20 pin mobo, as long as pins don't bump
> >>>> 20 pin can plug to 24 pin mobo (same pinout) - use the right
> >>>> holes. Some 24 pin are detachable, into a 20 pin part and a
> >>>> detached 4 pin part. At least one guy has managed to plug the
> >>>> detached 4 pin, into the processor Vcore input. (I haven't
> >>>> checked to see how hard that is to do.)
> >>>>
> >>>> PCI Express slots have 12V pins on them and allow up to 5 amps.
> >>>> Video cards (not overclocked) seem to be designed to draw about 4
> >>>> amps or a tiny bit more, through the PCI Express x16 slot. The
> >>>> single 12V wire on the 20 pin connector carries at least 6 amps, so
> >>>> using a 20 pin connector on a non-SLI board seems reasonable. The
> >>>> fan header current also flows through the single 12V pin on the 20
> >>>> pin connector. Main connector rated for 6 amps per pin.
> >>>>
> > http://www.molex.com/cgi-bin/bv/mole...roductID=98716
> >>>>
> >>>> 12V processor power connect pins rated at 8 amps per pin.
> >>>>
> > http://www.molex.com/cgi-bin/bv/mole...roductID=76873
> >>>>
> >>>> Molex disk drive connector rated at 8 amps per pin (based on
> >>>> assuming a right angle PCB mount connector, and 18 gauge wire -
> >>>> Amp 82181 catalog)
> >>>>
> >>>> Enjoy your new power supply. No need for adapters.
> >>>>
> >>>> The Ultra you have selected, has 12V @ 16A. If you had an 89W AMD
> >>>> processor, that is (89W/12V)/0.90 = 8.24A. A midrange video card
> >>>> like 6600GT is 4A. That is 12.24 amps so far. A disk drive idles
> >>>> at 0.5A. A CDROM can draw 1.5A according to the rating on the
> >>>> label. Allocate
> >>>> 0.5A for some fans. We are now at 14.74 amps of 16A. Your new Ultra
> >>>> is suitable for a midrange gamer with minimal storage devices. More
> >>>> than 16 amps is required if your PC has more toys in it. For
> >>>> example, if you bought an ATI X1900XTX, it draws 10 amps (part
> >>>> through the PCI Express slot, part through the 2x3 PCI Express
> >>>> connector), and you would need about 12V @ 23A to have a stable
> >>>> computer. So, enjoy your new Ultra, but do not overload it.
> >>>>
> >>>> HTH,
> >>>> Paul
> >>>
> >>> Thanks for the detailed reply Paul.
> >>>
> >>> Just to confirm what you have said:
> >>>
> >>> 1. Plug the 20 pin ATX motherboard power cable into the 24pin socket
> >>> on the MB
> >>>
> >>> then...
> >>>
> >>> Sorry to be thick
> >>>
> >>> Thanks
> >>>
> >>> Pete
> >>
> >> Sorry Paul, I just noticed that the spec on the side of the box is
> >> different to the spec on their website.
> >>
> >> This is what it says on the box, is this better for me or worse?
> >>
> >> Thanks
> >>
> >> Pete
> >>
> >> +3.3VDC=16A
> >> +5vDC=30A
> >> +12vdc=19A 228W
> >> -12vdc=0.6A
> >> -5vdc=0.6A
> >> +5vsb=2.0A
> >>
> >>
> >>
> >>
> >>
> >>
> >> +3.3V
> >>
> >> AC INPUT
> >> 115V/230V 10A/6A 60/50Hz
> >> DC OUTPUT
> >> +3.3V
> >> +5V
> >> +12V
> >> -12V
> >> -5V
> >> +5VSB
> >> 500W
> >> Max
> >> Combined
> >> Watts
> >> 28A
> >> 30A
> >> 34A
> >> 0.8A
> >> 0.3A
> >> 2A
> >> 500W
> >
> > If the link in question is this one, the 34A rating on 12V is plenty.
> > Just plug it in and use it :-)
> >
> > http://www.ultraproducts.com/product...&productID=298
> >
> > HTH,
> > Paul
>
>
> No, the link shows the 500watt psu, mine is the 400watt one but all the
> specs on the site differ from those on my box, that's why I typed them in. R
> the specs I listed OK?
>
> Thanks
>
> Pete
OK. You copied two chunks of text. You show this one, which looks
like it might be copied from the label:
+3.3VDC=16A
+5vDC=30A
+12vdc=19A 228W
-12vdc=0.6A
-5vdc=0.6A
+5vsb=2.0A
and then you show a second chunk of stuff, which looks like it is
a copy/paste from the web page for a _500W_ power supply. Notice
how the "500W" text string occurs twice here:
AC INPUT
115V/230V 10A/6A 60/50Hz
DC OUTPUT
+3.3V
+5V
+12V
-12V
-5V
+5VSB
500W
Max
Combined
Watts
28A
30A
34A
0.8A
0.3A
2A
500W
So while it looks to me like two power supply specifications, I
guess you're telling me to ignore the second, longer chunk of
text, and pay attention to the first chunk ?
In my original reply to you, the last paragraph in the reply,
attempted to show you that I need to know the hardware in the
box to work out the power. I still do not know what video card
you are using. I picked as an example card, since I don't know
your video card, the 6600GT, and demonstrated how to total
up a few current consumption numbers. My example calculation
showed 14.74 amps of load on the +12V. Since you are telling
me the label on the side of the supply shows 12V @ 19A , that
is enough for the _sample_ hardware configuration I made up.
Either provide a complete hardware inventory of your computer,
so I can work out the _real_ number, or continue to not supply
the information, and work it out for yourself. My guess right
now is, you have enough power, at least until you tell me
about the X1900XTX you just plugged in.
Paul