Athlon64 3500, Geforce 6800ultra - Which power supply?

Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

Subject says it all. I hadn't really planned on buying a new power
supply (I currently own a 420W semi-generic), but when I think
about the 6800 Ultra's original recommended wattage, plus the fact
that I'll be trying to overclock the Ultra, ram and cpu, I begin
to suspect that I may need something more. This may be incorrect.
Feel free to enlighten.

Assuming I do need something more, what should I get? It looks like
a regular, non-elite 480W can be had for $75 or less. Or for as
much as $150. A lot of variety with power supplies, most of which
I suspect is the manufacturers taking advantage of pricing
ambiguity. I can, for example, understand why a 6800 Ultra costs
25% more than a 6800 GT, but the advantages provided by one power
supply which costs 100% more than an alternative are totally
unknown to me. I don't need the ultimate power supply.. that I
know of, anyway. Who knows? Maybe it really is a good idea for
some reason. Again, enlightenment would be appreciated.

And would 480W be enough, or would there be a risk of me taxing
even that?

Thanks as always.
18 answers Last reply
More about athlon64 3500 geforce 6800ultra power supply
  1. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    Marc Brown wrote:
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?

    If you want a quality psu that will last... pc power and cooling all the
    way.
  2. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    On Thu, 30 Sep 2004 20:08:40 -0700, Marc Brown wrote:

    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    I'm not going to argue the advantages, if any, of an expensive PSU, but
    hell would have to freeze over before I paid more than $25 for a PSU. My
    current 600W was $24. My old 400W wouldn't even keep the system from
    crashing after less than a minute. I bought 3 new PSU's, 500W ($12), 550W
    ($15), and the 600W ($24). All 3 ran my A64 3000+ system fine. So if you
    have to buy a new PSU, I wouldn't get less than 500W in a cheap PSU. Oh,
    the 500W and 600W are Lead Power, and the 550W is a Power Magic.

    --
    Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
    http://mysite.verizon.net/res0exft/cpu.htm
  3. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    Let me just say (without knowing the rest of your system specifics, that
    there is a hugh difference between various power supplies. Quality of
    components used, cooling, and most importantly, the real power output as
    temps begin to rise. For that reason, and because I run multiple hard
    drives and optical drives on a completely overclocked system, I use PC Power
    and Cooling. I also run my second rig with a Antec 550. Then again, you
    may be ok with what you have.
    "Marc Brown" <retsa2@hotmail.com> wrote in message
    news:9dc342ba.0409301908.223ea56d@posting.google.com...
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    > Thanks as always.
  4. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    On 30 Sep 2004 20:08:40 -0700, retsa2@hotmail.com (Marc
    Brown) wrote:

    >Subject says it all. I hadn't really planned on buying a new power
    >supply (I currently own a 420W semi-generic), but when I think
    >about the 6800 Ultra's original recommended wattage, plus the fact
    >that I'll be trying to overclock the Ultra, ram and cpu, I begin
    >to suspect that I may need something more. This may be incorrect.
    >Feel free to enlighten.
    >
    >Assuming I do need something more, what should I get? It looks like
    >a regular, non-elite 480W can be had for $75 or less. Or for as
    >much as $150. A lot of variety with power supplies, most of which
    >I suspect is the manufacturers taking advantage of pricing
    >ambiguity. I can, for example, understand why a 6800 Ultra costs
    >25% more than a 6800 GT, but the advantages provided by one power
    >supply which costs 100% more than an alternative are totally
    >unknown to me. I don't need the ultimate power supply.. that I
    >know of, anyway. Who knows? Maybe it really is a good idea for
    >some reason. Again, enlightenment would be appreciated.
    >
    >And would 480W be enough, or would there be a risk of me taxing
    >even that?
    >
    >Thanks as always.

    Stick with name-brands having over 18A of 12V capacity.
    Thermaltake, Antec, Sparkle/Fortron, Delta, PC Power &
    Cooling are good choices (from good to better in that
    order). 480W from a PSU with accurate rating is enough,
    providing you're not running a ton of hard drives too.

    Don't know exactly what you mean by "regualar, non-elite",
    but generally a good 480W PSU will cost in the neighborhood
    of $65 (shopping around, on sale) or more commonly $75 & up.
    Considering how much the rest of the parts cost, $100 is a
    reasonable target.
  5. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    "Marc Brown" <retsa2@hotmail.com> wrote in message
    news:9dc342ba.0409301908.223ea56d@posting.google.com...
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    > Thanks as always.

    PSU is one of important component in a PC. Not everyone think of PSU when
    purchasing or place on top of the list.
    Depending on that individual, PSU is the main component supply power to all
    components inside your PC. Quality PSU will help your PC run cleaner and
    longer which depend on how it use and it environment that it use at. You can
    get away with a with cheap PSU and might last forever. But getting a good
    known manufacturer like Antec or Enermax etc. You can safely know it will it
    a good quality PSU. Using cheap PSU is like a gamble / risk. Having a good
    quaility PSU will prolong your components.

    Again, it really depend on that individual and what to use for and the value
    it apply to.

    CapFusion,...
  6. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    When it comes to power supplies, higher quality units really are worth the
    extra cost -- there really is a performance difference. I'd think that a
    high quality 420 would probably be enough for you, and that a high quality
    480 would give you some headroom. I'd guess that anything above this would
    be overkill, even if you were using multiple drives. A high quality (like
    an antec) 480 or even a 420 would be better than a low quality 550.

    My advice would be to get something like an Antec TruePower 480.

    Larry

    "Marc Brown" <retsa2@hotmail.com> wrote in message
    news:9dc342ba.0409301908.223ea56d@posting.google.com...
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    > Thanks as always.
  7. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    "Marc Brown" <retsa2@hotmail.com> wrote in message
    news:9dc342ba.0409301908.223ea56d@posting.google.com...

    " A lot of variety with power supplies, most of which I suspect is the
    manufacturers taking advantage of pricing ambiguity. I can, for example,
    understand why a 6800 Ultra costs 25% more than a 6800 GT, but the
    advantages provided by one power supply which costs 100% more than an
    alternative are totally unknown to me. "


    Read the introduction of this Antec TruePower 550W review.
    http://www.mikhailtech.com/modules.php?name=Articles&rop=showcontent&id=21
  8. Archived from groups: alt.comp.periphs.videocards.nvidia (More info?)

    On 30 Sep 2004 20:08:40 -0700, retsa2@hotmail.com (Marc Brown) wrote:

    >Subject says it all. I hadn't really planned on buying a new power
    >supply (I currently own a 420W semi-generic), but when I think
    >about the 6800 Ultra's original recommended wattage, plus the fact
    >that I'll be trying to overclock the Ultra, ram and cpu, I begin
    >to suspect that I may need something more. This may be incorrect.
    >Feel free to enlighten.
    >
    >Assuming I do need something more, what should I get? It looks like
    >a regular, non-elite 480W can be had for $75 or less. Or for as
    >much as $150. A lot of variety with power supplies, most of which
    >I suspect is the manufacturers taking advantage of pricing
    >ambiguity. I can, for example, understand why a 6800 Ultra costs
    >25% more than a 6800 GT, but the advantages provided by one power
    >supply which costs 100% more than an alternative are totally
    >unknown to me. I don't need the ultimate power supply.. that I
    >know of, anyway. Who knows? Maybe it really is a good idea for
    >some reason. Again, enlightenment would be appreciated.

    I bought one of these from Newegg.....
    Have had it 2 months and have been happy with it.

    http://www.newegg.com/app/viewproductdesc.asp?description=17-148-008&DEPA=0
  9. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    http://forums.pcper.com/showthread.php?t=343097&page=1&pp=15


    "Marc Brown" <retsa2@hotmail.com> wrote in message
    news:9dc342ba.0409301908.223ea56d@posting.google.com...
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    > Thanks as always.
  10. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    On Sat, 2 Oct 2004 00:13:17 -0700, "David Hughes"
    <dave@no.spam> wrote:

    >http://forums.pcper.com/showthread.php?t=343097&page=1&pp=15
    >
    >


    There is one major problem with that thread, that they are
    making the age-old mistake of trusting Enermax's amperage
    ratings on the label. Enermax does not rate sustained
    amperage or wattage like the better power supplies do.
    Figure 70% of Enermax's rating to compare to some other
    well-known major brands.
  11. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    Aside from the issues of cheap power supplies putting out too little
    power for the needed voltages or of putting out "dirty" power, many
    cheap power supplies tend to be quite noisy. It doesn't make sense
    to suffer with a noisy pc when for a relatively small additional amount,
    one can have a quiet one.

    http://www.quietpcusa.com/

    Marc Brown wrote:

    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.
    >
    > Assuming I do need something more, what should I get? It looks like
    > a regular, non-elite 480W can be had for $75 or less. Or for as
    > much as $150. A lot of variety with power supplies, most of which
    > I suspect is the manufacturers taking advantage of pricing
    > ambiguity. I can, for example, understand why a 6800 Ultra costs
    > 25% more than a 6800 GT, but the advantages provided by one power
    > supply which costs 100% more than an alternative are totally
    > unknown to me. I don't need the ultimate power supply.. that I
    > know of, anyway. Who knows? Maybe it really is a good idea for
    > some reason. Again, enlightenment would be appreciated.
    >
    > And would 480W be enough, or would there be a risk of me taxing
    > even that?
    >
    > Thanks as always.
  12. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    In article <k56dnX7vEIskC8DcRVn-gg@megapath.net>,
    CapFusion.Yo.@hotmail.Hehe.Com says...
    > PSU is one of important component in a PC. Not everyone think of PSU when
    > purchasing or place on top of the list.

    Yep, I used to buy the cheap PSUs and caused a bit of
    self-inflicted suffering (RAID sets that would
    mysteriously fail and have to resync, reboots and other
    strange behavior).

    Buy a good quality power-supply, and you'll still be
    using it 5 years from now. I think I usually pay about
    $80 for a good P/S (480W), which is a good bit cheaper
    then replacing failed components down the road.
  13. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    Marc Brown wrote:
    > Subject says it all. I hadn't really planned on buying a new power
    > supply (I currently own a 420W semi-generic), but when I think
    > about the 6800 Ultra's original recommended wattage, plus the fact
    > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > to suspect that I may need something more. This may be incorrect.
    > Feel free to enlighten.

    6800 Ultra power usage report:
    http://www.xbitlabs.com/articles/video/display/ati-vs-nv-power_2.html
    Table of power usage at
    http://www.xbitlabs.com/images/video/ati-vs-nv-power/6800u_table-b.gif

    So right off the bat, it's going to be eating ~55W off the 12V line, and
    ~23W off the 5V line. Add in the CPU at 90W, thrown in the regulator
    efficiency at ~80% to get ~115W, and you're already up to at least 14A on
    the 12V and 5A on the 5V line. Hard drives, once spun up (they'll only spin
    up when your GPU isn't working), consume about 0.5A off the 12V and ~1A on
    the 5V. Add in the motherboard (southbridge and other chips have to be
    powered), case fans (small usage off the 12V, ~0.2A for a normal fan), usb
    devices, etc etc and you can easily get to 18A from the 12V under gaming
    conditions. So the minimum you should be looking for is 20A on the 12V,
    though I'd feel much safer with 23A or so. As long as the 5V line can supply
    20A or so you should be fine, as not too much stuff uses 5V nowadays.

    [...]

    --
    Michael Brown
    www.emboss.co.nz : OOS/RSI software and more :)
    Add michael@ to emboss.co.nz - My inbox is always open
  14. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    Thanks for those links. Does anyone know of a site showing similar power
    consumption information for a GF4 Ti4600 at full load? I'm curious about
    how much more power the 6800GT draws compared to a GF4 Ti4600.

    Thanks,

    Larry

    "Michael Brown" <see@signature.below> wrote in message
    news:G%t7d.9032$JQ4.623651@news.xtra.co.nz...
    > Marc Brown wrote:
    > > Subject says it all. I hadn't really planned on buying a new power
    > > supply (I currently own a 420W semi-generic), but when I think
    > > about the 6800 Ultra's original recommended wattage, plus the fact
    > > that I'll be trying to overclock the Ultra, ram and cpu, I begin
    > > to suspect that I may need something more. This may be incorrect.
    > > Feel free to enlighten.
    >
    > 6800 Ultra power usage report:
    > http://www.xbitlabs.com/articles/video/display/ati-vs-nv-power_2.html
    > Table of power usage at
    > http://www.xbitlabs.com/images/video/ati-vs-nv-power/6800u_table-b.gif
    >
    > So right off the bat, it's going to be eating ~55W off the 12V line, and
    > ~23W off the 5V line. Add in the CPU at 90W, thrown in the regulator
    > efficiency at ~80% to get ~115W, and you're already up to at least 14A on
    > the 12V and 5A on the 5V line. Hard drives, once spun up (they'll only
    spin
    > up when your GPU isn't working), consume about 0.5A off the 12V and ~1A on
    > the 5V. Add in the motherboard (southbridge and other chips have to be
    > powered), case fans (small usage off the 12V, ~0.2A for a normal fan), usb
    > devices, etc etc and you can easily get to 18A from the 12V under gaming
    > conditions. So the minimum you should be looking for is 20A on the 12V,
    > though I'd feel much safer with 23A or so. As long as the 5V line can
    supply
    > 20A or so you should be fine, as not too much stuff uses 5V nowadays.
    >
    > [...]
    >
    > --
    > Michael Brown
    > www.emboss.co.nz : OOS/RSI software and more :)
    > Add michael@ to emboss.co.nz - My inbox is always open
    >
    >
  15. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    "Michael Brown" <see@signature.below> wrote in message news:<G%t7d.9032$JQ4.623651@news.xtra.co.nz>...
    > So the minimum you should be looking for is 20A on the 12V,
    > though I'd feel much safer with 23A or so. As long as the 5V line can supply
    > 20A or so you should be fine, as not too much stuff uses 5V nowadays.

    Thanks for the many helpful replies, folks. I settled upon the
    Antec True550. There seems to be a fair chance this will prove
    adequate.
  16. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    > I'm not going to argue the advantages, if any, of an expensive PSU, but
    > hell would have to freeze over before I paid more than $25 for a PSU.

    I agree that most brand-name PSUs are overpriced, but having seen a
    cheap no-name PSU burn out, taking a motherboard, hard drive, and CD-ROM
    drive with it, I no longer trust my systems to $10 PSUs. At the very
    least, I'd make sure to get something with overvoltage protection.

    Also, read the fine print. One cheap "500W" power supply I bought
    computes its wattage rating by adding the total wattage for each rail,
    assuming that all the other rails are unloaded. This is a next to
    useless measure for a real PC. The actual maximum power rating for the
    unit is only 282W.
  17. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    On Sun, 03 Oct 2004 22:59:41 -0600, Lachoneus
    <lachoneus@nonexistent.invalid> wrote:

    >> I'm not going to argue the advantages, if any, of an expensive PSU, but
    >> hell would have to freeze over before I paid more than $25 for a PSU.
    >
    >I agree that most brand-name PSUs are overpriced, but having seen a
    >cheap no-name PSU burn out, taking a motherboard, hard drive, and CD-ROM
    >drive with it, I no longer trust my systems to $10 PSUs. At the very
    >least, I'd make sure to get something with overvoltage protection.
    >
    >Also, read the fine print. One cheap "500W" power supply I bought
    >computes its wattage rating by adding the total wattage for each rail,
    >assuming that all the other rails are unloaded. This is a next to
    >useless measure for a real PC. The actual maximum power rating for the
    >unit is only 282W.


    You were lucky to find a label on it that honestly stated
    the true max rating... usually that is omitted.
  18. Archived from groups: alt.comp.hardware,alt.comp.hardware.overclocking.amd,alt.comp.periphs.videocards.nvidia (More info?)

    On 30 Sep 2004 20:08:40 -0700, retsa2@hotmail.com (Marc Brown) wrote:

    >Subject says it all.
    >snip
    Thermaltake 480w $61.00
    http://tinyurl.com/6lemt

    regards

    Dud
    --
    At no time is freedom of speech more precious than when a man hits his
    thumb with a hammer.
    -- Marshall Lumsden
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