"DRS" <drs.TakeThisOut@removethis.ihug.com.au> wrote in message
news:47c35f5a$0$27335$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
> "Mr. Bro" <bbro.TakeThisOut@en.com> wrote in message
> news:l5n6s3pl1msg9me86ojj6e9np727hj8huq@4ax.com
>> I'm builing a system with an Asus EN8600GT/HTDP/512M. The CPU is an
>> Intel Q6600. My question is this:
>> The 8600GT does not need an extra power plug but the 8800GT does, why
>> is this?
>
> The 8800GT draws more power than the 8600GT. Theoretically the 8800GT,
> which according to Nvidia's spec draws max 131W in 3D mode (although
> XBitLabs tested it slightly lower), could draw all its power from the PCIE
> bus (max 150W) but Nvidia are playing it safe by drawing extra power
> directly from the PSU.
The maximum power that a single PCI-e slot supplies through the bus is
nowhere near 150W. It's 75W max, with an additional 75W supplied from the
external 6 pin PCIe connector for a total of 150W. There's now an 8 pin
PCI-e connector that supplies even more power for newer power hungry cards.
A typical 8600GT card pulls in the 45-50W max range under full load. The
8600GTS requires additional power and has the standard additional PCI-e
power connector.
>> Stay informed about: Ques: 8600GT