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Thomas · Guest

I'm getting ready to finally pick up my components. I'm just still in doubt
about my PSU / case. Originally I ordered the Antec Atlas, which includes an
Antec Truepower 2.0 550Watt.
http://www.cluboverclocker.com/reviews/cases/antec/Atlas/index.htm

This PSU features two 12V rails, each offering 19 amps (total 35 I think).
It's powerful enough, I guess, but not the most advanced powersupply
available. (No active PFC)

I'm now also looking at the Cooler Master iGreen series, 500 or 600 Watts.
These have higher efficiency and three 12V rails.
http://www.coolermaster-usa.com/Products.aspx?pid=1231

Total amps is comparable to the True Power 2.0. The power rating on the
rails is less, though: 19.5 max each, but only 16, 14 and 8 amps continuous.

Can anyone give me a good recommendation which PSU to choose?

I'm going to overclock an E4300 with 2 GB of memory, 1 or 2 harddisks, an
8800GTS-320, and one optical drive.

Thanks in advance,

--
Met vriendelijke groeten, Thomas vd Horst.

Phil Weldon · Guest

'Thomas' scribed, in part:
| I'm getting ready to finally pick up my components. I'm just still in
doubt
| about my PSU / case. Originally I ordered the Antec Atlas, which includes
an
| Antec Truepower 2.0 550Watt.

I'm using an Antec Neo HE 550 (EVGA 680i/E4300/8800GTS). This supply has
three + 12 VDC @ 18 Amperes and a maximum + 12 VDC power capacity of 500
Watts. The total power capacity is 550 Watts. The price via Internet is
about $110 US. This power supply has modular cables and should be
sufficient for any system except for dual 8800 GTX systems.

The Antec True Power 2.0 550 Wattt supply seems to be obsolete and no longer
appears on the Antec web site.

Phil Weldon

"Thomas" <ThomasH@lycosmail.nl> wrote in message
news:46324a68$0$16950$9a622dc7@news.kpnplanet.nl...
| http://www.cluboverclocker.com/reviews/cases/antec/Atlas/index.htm
|
| This PSU features two 12V rails, each offering 19 amps (total 35 I think).
| It's powerful enough, I guess, but not the most advanced powersupply
| available. (No active PFC)
|
| I'm now also looking at the Cooler Master iGreen series, 500 or 600 Watts.
| These have higher efficiency and three 12V rails.
| http://www.coolermaster-usa.com/Products.aspx?pid=1231
|
| Total amps is comparable to the True Power 2.0. The power rating on the
| rails is less, though: 19.5 max each, but only 16, 14 and 8 amps
continuous.
|
| Can anyone give me a good recommendation which PSU to choose?
|
| I'm going to overclock an E4300 with 2 GB of memory, 1 or 2 harddisks, an
| 8800GTS-320, and one optical drive.
|
| Thanks in advance,
|
| --
| Met vriendelijke groeten, Thomas vd Horst.
|
|

Thomas · Guest

Phil Weldon wrote:

Paul · Guest

Thomas wrote:

Phil Weldon · Guest

'Thomas' scribed"
| About the Truepower 2.0: it's powerful enough to power the one GTS, but
it's
| not fitted to run two. That's why I'm so doubtful.The Cooler Master seems
| interesting, but the third 12V rail is too weak (max 8 amps continuous,
| where the GTS needs 10 to 11).
|
| I'm actually beginnning to think about the truepower trio 430, which has
16
| amps on all it's three rails (but only 32 max combined).
_____

The True Power Trio 430 would seem to be inadequate for systems with more
than one 7800 and higher graphics adapters.

If I were contemplating eventually upgrading to two graphics adapters in the
8800 GTX class I would go with a 650 Watt supply with three +12 VDC rails.
Otherwise a 550 Watt supply with three +12 VDC rails would be my choice for
two graphics adapters up to 8800 GTS. I have seen power supplies that boast
'single rail' +12 VDC. These may be more convenient for calculation power
sufficiency, but according to the specifications of ATX +12 ver. 2.02 no
rail should provide more than 240 VA.

"3.4.4. Over-current Protection
Overload currents applied to each tested output rail will cause the output
to trip before
reaching or exceeding 240 VA. For testing purposes, the overload currents
should be
ramped at a minimum rate of 10 A/s starting from full load."

page 29
http://www.formfactors.org/developer/specs/ATX12V_PSDG_2_2_public_br2.pdf

I had much rather have a supply that trips at a + 12VDC overload at 240
Watts than one that will not trip until an overload of ~ 500 Watts or more.
I would avoid any supply with fewer than three +12 VDC rails if more than
one 8800 class graphics adapter may eventually be installed

I have two Enlight EN-8950 cases, one of which I use for my new EVGA
680i/E4300/8800 GTS system. I've used the cases for five years or so, and
am very satisfied. The big advantage is the large interior volume. There
is ~ 7 inches between the forward edge of an ATX motherboard and the rear
of even the largest drives. My original purchase cost was about $100 US
each. The case has 9 front access 5 1/2 inch drive bays and a 120 mm fan
fits nicely into either the top three or bottom three bays. There is a
knock-out panel in the door in front of the three center bays so that
removable media drives can be conveniently accessed. See
http://nl.enlightcorp.com/Product/Product_Detail.aspx?ID=236
for details. Current on-line price is ~ $110 US.

"Thomas" <ThomasH@lycosmail.nl> wrote in message
news:463260d5$0$16955$9a622dc7@news.kpnplanet.nl...
| Phil Weldon wrote:
| > > I'm getting ready to finally pick up my components. I'm just still
| > > in doubt about my PSU / case. Originally I ordered the Antec Atlas,
| > > which includes an Antec Truepower 2.0 550Watt.
| >
| > I'm using an Antec Neo HE 550 (EVGA 680i/E4300/8800GTS). This supply
| > has three + 12 VDC @ 18 Amperes and a maximum + 12 VDC power capacity
| > of 500 Watts. The total power capacity is 550 Watts. The price via
| > Internet is about $110 US. This power supply has modular cables and
| > should be sufficient for any system except for dual 8800 GTX systems.
| >
| > The Antec True Power 2.0 550 Wattt supply seems to be obsolete and no
| > longer appears on the Antec web site.
|
| Hm you've got a nice power supply.... According to this LONG list, you've
| got a max of 46 amps combined on the 12V:
| http://forums.guru3d.com/showthread.php?t=205763
|
| Unfortunately it's not in stock in the store where I'm buying my case...
|
http://www.alternate.nl/html/product/summary/categorized.html?cat1=135&cat2=346&cat3=0&sorted=true&treeName=HARDWARE&Level1=Behuizingen&Level2=Voedingen&Level3=tot+600+Watt&column=price&direction=asc
|
| About the Truepower 2.0: it's powerful enough to power the one GTS, but
it's
| not fitted to run two. That's why I'm so doubtful.The Cooler Master seems
| interesting, but the third 12V rail is too weak (max 8 amps continuous,
| where the GTS needs 10 to 11).
|
| I'm actually beginnning to think about the truepower trio 430, which has
16
| amps on all it's three rails (but only 32 max combined).
|
| Well, I'll see which PSU 'feels' best tomorrow :-)
|
| Thanks for your help!
|
| --
| Met vriendelijke groeten, Thomas vd Horst.
|
|

davy · Guest

Don't know if this power supply calculator cater's for Overclocking,
see-:

*http://www.journeysystems.com/power_supply_calculator.php*

davy

Guest · Posted: Sat Apr 28, 2007 12:23 am Post subject: Re: Which PSU?

I've had great luck with the OCZ Powerstreams, both 600 and
700W. Rock solid voltages even under massive load changes,
long power leads and virtually silent 12cm fans. They're actually
tweaked Fortron OEMs.

"Thomas" <ThomasH@lycosmail.nl> wrote in message news:46324a68$0$16950$9a622dc7@news.kpnplanet.nl...

Phil Weldon · Guest

'davy' wrote:
| Don't know if this power supply calculator cater's for Overclocking,
| see-:
|
| *http://www.journeysystems.com/power_supply_calculator.php*
_____

The calculator at
http://www.journeysystems.com/power_supply_calculator.php
is of little use for any system with components out in the last two years.
The latest Intel CPU covered is the 570 and the latest graphics adapter is
the 6800 Ultra. Memory is not included in the calculation.

The power supply calculator at
http://www.extreme.outervision.com/PSUEngine
is much more up to date, but in my opinion it gives a calculated estimate
that is 30% high for the system requirements I have run. The same source
provides a more complex calculator for $1.95 US per day, $3.95 per month; I
find that a bit much for so little.

Phil Weldon

"davy" <davy.2pq149@no.email.invalid> wrote in message
news:davy.2pq149@no.email.invalid...
|
| Don't know if this power supply calculator cater's for Overclocking,
| see-:
|
| *http://www.journeysystems.com/power_supply_calculator.php*
|
| davy
|
|

Thomas · Guest

Phil Weldon wrote:

davy · Guest

Phil Weldon;66269 Wrote:

Ed Medlin · Guest

"Phil Weldon" <not.disclosed@example.com> wrote in message
news:yuuYh.1483$296.1070@newsread4.news.pas.earthlink.net...

davy · Guest

Phil Weldon;66269 Wrote:

Fishface · Guest

Ed Medlin wrote:

Phil Weldon · Guest

'Ed Medlin' wrote, in part:
| PC Power and Cooling seem to go another direction with one very
| large12v rail.
| http://www.pcpower.com/products/viewproduct.php?show=S75QB
| is the PSU I have and you can read the info there on how they go
| about doing it. 60a is a LOT for a single 12v rail. Let me know what
| you think about it yourself.
_____

I think you have a very good power supply, but that the engineering
department of 'PC Power and Cooling' is subordinated to the marketing
department. One single 60 Ampere + 12 VDC rail may be SLIGHTLY more
convenient than three 20 Ampere rails, but at the expense of meaningful
overload protection. My Antec Neo HE 550 supply has three + 12 VDC rails at
18 Amperes each (obviously not simultaneously); 216 Watts should be more
than enough to run any currently available components. And 12 X 20 = 240
rails for a 750 Watt supply would not seem to be much of a limitation.
Either way your overclocked E6600 / 2 X 8800 GTX overclocked system would be
well taken care of.

Post some numbers, already! I am especially interested in how well
voltage/temperature/fan monitoring applets work, and what nMonitor and nTune
do for your system.

Phil Weldon

"Ed Medlin" <ed@edmedlin.com> wrote in message
news:mWFYh.3723$H_.2818@newssvr21.news.prodigy.net...
|
| "Phil Weldon" <not.disclosed@example.com> wrote in message
| news:yuuYh.1483$296.1070@newsread4.news.pas.earthlink.net...
| > 'Thomas' scribed"
| > | About the Truepower 2.0: it's powerful enough to power the one GTS,
| > but
| > it's
| > | not fitted to run two. That's why I'm so doubtful.The Cooler Master
| > seems
| > | interesting, but the third 12V rail is too weak (max 8 amps
| > continuous,
| > | where the GTS needs 10 to 11).
| > |
| > | I'm actually beginnning to think about the truepower trio 430, which
| > has
| > 16
| > | amps on all it's three rails (but only 32 max combined).
| > _____
| >
| > The True Power Trio 430 would seem to be inadequate for systems with
| > more
| > than one 7800 and higher graphics adapters.
| >
| > If I were contemplating eventually upgrading to two graphics adapters
| > in the
| > 8800 GTX class I would go with a 650 Watt supply with three +12 VDC
| > rails.
| > Otherwise a 550 Watt supply with three +12 VDC rails would be my
| > choice for
| > two graphics adapters up to 8800 GTS. I have seen power supplies that
| > boast
| > 'single rail' +12 VDC. These may be more convenient for calculation
| > power
| > sufficiency, but according to the specifications of ATX +12 ver. 2.02
| > no
| > rail should provide more than 240 VA.
| >
| > "3.4.4. Over-current Protection
| > Overload currents applied to each tested output rail will cause the
| > output
| > to trip before
| > reaching or exceeding 240 VA. For testing purposes, the overload
| > currents
| > should be
| > ramped at a minimum rate of 10 A/s starting from full load."
| >
| > page 29
| >
http://www.formfactors.org/developer/specs/ATX12V_PSDG_2_2_public_br2.pdf
| >
| > I had much rather have a supply that trips at a + 12VDC overload at
| > 240
| > Watts than one that will not trip until an overload of ~ 500 Watts or
| > more.
| > I would avoid any supply with fewer than three +12 VDC rails if more
| > than
| > one 8800 class graphics adapter may eventually be installed
| >
| >
| > I have two Enlight EN-8950 cases, one of which I use for my new EVGA
| > 680i/E4300/8800 GTS system. I've used the cases for five years or so,
| > and
| > am very satisfied. The big advantage is the large interior volume.
| > There
| > is ~ 7 inches between the forward edge of an ATX motherboard and the
| > rear
| > of even the largest drives. My original purchase cost was about $100
| > US
| > each. The case has 9 front access 5 1/2 inch drive bays and a 120
| > mm fan
| > fits nicely into either the top three or bottom three bays. There is
| > a
| > knock-out panel in the door in front of the three center bays so that
| > removable media drives can be conveniently accessed. See
| > http://nl.enlightcorp.com/Product/Product_Detail.aspx?ID=236
| > for details. Current on-line price is ~ $110 US.
| >
| PC Power and Cooling seem to go another direction with one very large
| 12v rail. http://www.pcpower.com/products/viewproduct.php?show=S75QB is
| the PSU I have and you can read the info there on how they go about
| doing it. 60a is a LOT for a single 12v rail. Let me know what you think
| about it yourself. I had to do a bit of case modifications to get it
| installed. I also moved the water pump and have the water block
| installed on the P5N32-SLI. This MB has heat-pipe cooling on the MB
| chipset and one other (think it is a controller) chip. The 2 8800 GTXs
| are going to fit fine, of course I will have only one available PCI slot
| with those.
|
| Ed
| >
|
|

Fishface · Guest

Phil Weldon wrote: