[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 198
  • Last Modified:

Graphics card GTX750

what is the purpose aux 6 pin connector . what is the max power consumption . what is maximum power supply required for CPU
0
techp
Asked:
techp
3 Solutions
 
☠ MASQ ☠Commented:
The 6-pin plug is because the card needs an external power source as it can't pull enough current via the PCI-E slot.

Measured power consumption GTX 750 card

    System in IDLE = 120 W
    System Wattage with GPU in FULL Stress = 186W
    Difference (GPU load) = 66W
    Add average IDLE wattage ~10W
    Subjective obtained GPU power consumption = ~ 76 Watts
(From : http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-750-and-750-ti-review,5.html)

If you meant minimum power supply, you need at least a 450W PSU but it depends on what else you have connected to the board.  The is no maximum.
0
 
Gary CaseRetiredCommented:
As noted above, the GTX 750 specifications call for a power supply of at least 450w.    As Masq noted above, there is no "maximum" ... clearly you don't need a KW supply, but many folks would prefer to use 550 - 750 watt units to provide some additional "headroom".

FYI, the PCIe specification provides for a graphics card to use up to 75w from the PCIe bus.   Any additional power comes from the PCIe auxiliary power connectors -- 75w from a 6-pin connector, or 150w from an 8-pin connector.
0
 
nobusCommented:
i suggest to calculate the power you need  here :  http://extreme.outervision.com/psucalculatorlite.jsp
then allow for a 50 w margin
0
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

 
techpAuthor Commented:
i was supposed to write in question " minimum power supply"

hello masq

  i was supposed to write in question " minimum power supply"
  When you tell ,   System Wattage with GPU in FULL Stress = 186W................Why it requires 450W PSU ??? for other motherboard purpose ???????
0
 
Gary CaseRetiredCommented:
The minimum power supply spec on video cards is based on a typical system load for the CPU and memory; and also the load bearing capabilities of the recommended power supply on the 12v bus, which is typically the most likely power bus to be overloaded in a system.

The spec doesn't mean the card won't work with a lower-rated supply -- I've seen GTX 750's on systems with only 300w power supplies ... but it does mean that if you have a problem with the card and don't have the minimum recommended power supply, the first thing they'll tell you to do is upgrade the power supply.
0
 
nobusCommented:
>>  what is the purpose aux 6 pin connector   <<  to supply extra power for the card
you can calculate the power you need from the link i posted above
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now