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Question about Evga e-GeForce 6800 (128 MB) Graphic Card

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Is the 350 watt power supply unit ok for EVGA Geforce 6800 graphics card ?

Can anyone tell me, is the 350 watt power supply unit OK for EVGA Geforce 6800 graphics card ?

Posted by AKM Asaduzzaman on

  • AKM Asaduzzaman Mar 20, 2007

    Thanks Noggin. In fact I have many accessories in my item like, 1 CD Rom, 1 DVD rom, 1 CD writer, 1 SCSI card, 1 Sound card, 1 agp card, 3 USB device, 1 Casing fan, 1 processor fan etc. This is 3 ghz processor. I have 1 GB dual channel ram. The other agp card which has a fan, it runs fine in this computer. So, now can u tell is the power supply is ok or not ?

  • AKM Asaduzzaman Mar 20, 2007

    Sorry, I forgot to tell you one thing, I have also a 1394 card for transferring video from a digital video camera.


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The big issue with a power supply unit rating is the total peak load that it has to deal with, which you calculate by adding all the rated loads of all the parts of your pc that are connected to it, and add yourself an extra 20% for luck. The motherboard, the HDD, the fans, the drives, USB devices, modem, and many more. If you have enough wattage left to accomodate your graphics card then it should be fine. If in doubt, for the cost it is always better to upgrade your power supply to a larger rated one, rather than overloading a smaller supply or causing low voltage problems with all your peripherals. Here is the link for your graphics card manual if you need it; http://www.evga.com/support/manuals/EVGA_GraphicsManual.pdf Check page 5 reference the supplemental power adaptor, and check your power supply has an connector for it. If you want to identify the power consumption ratings for each part of your pc, most will be written on the component somewhere, some in the manual, and some you have to guess by checking similar items ratings online. If you want help with this please post again and we can certainly try. Looking at the card, my guess is that a system that can justify such a nice card is likely to be pushing a 350w supply already, I'm guessing what your system could be like and I would put a 600w or more supply in it as soon as i had the cash to do so. post back all the details of your machine and i can figure it out if u like. This link takes you to some other interesting info about your graphics card. http://www.evga.com/support/knowledgebase/ Mostly a power supply that cannot deal with the demand will inform you by shutting down or committing suicide, although occasionally other components can be damaged by poor power supply, the chance is minimal with many newer items, and it should be worth trying. The fan performance of a power supply often governs how well it can deal with long periods of high load - give it a proper clean, and remember to check always that it is running. if you want, you can install another fan on the outside (blowing the same way), but unless you power it from a different source then you don't really help much. Instead of getting a larger power supply, you can just get another (perhaps from an old pc) and only use it to power the graphics card - best left outside the case for overheating reasons. Hope this all helps :)

Posted on Mar 20, 2007

  • Anonymous Mar 21, 2007

    From what you have said, without doing the research and the maths, I think 350w would do the job, but don't wait too long to get a bigger one. 350 will do most machines like yours, depending on the draw from the USB devices - also remember that with a smaller power supply, you can get away with it so long as you think about what is running and don't turn everything on at once - if you don't want to have to think about it either get a new powerpack or wait until it struggles or dies and hope nothing else suffers from it - if you keep a good eye on temperatures and noises then you may find 350 is fine for a while - remember though that graphics cards need a much cleaner power source than most of the more basic bits of a pc, so more is better as far as graphics performance is concerned, hence the second power connector on the card.

    Either way, good luck, but remember that if it worked before with no obvious problems, it is probably best to try it and see with what you have, but keep your eye on the power pack fan and any random shut-downs.


  • Anonymous Mar 21, 2007

    p.s. I have a very similar setup, but with a 3.6 chip, and i have a 500w supply that sometimes struggles, especially when usb devices are plugged in and it's summer.



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