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New XPS 8700 - Safe power supply to upgrade video card?

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Hi all, I just recieved my Dell XPS 8700 and it is an impressive machine.  It didn't take long to figure out that the 7570 was acting as a very significant bottleneck relative to the processor and RAM capabilities, so I've been thinking I'd like to upgrade the video card.  The question I have is this; the 450W power source seems sufficient for most mid-range cards (<$200), but I don't know about the amps.  I was taking a look at the 650 ti boost from EVGA, as it would complement the factory hardware from Dell quite nicely, but am uncertain if the power supply that shipped with the 8700 can handle a good mid-range card.  Opinions? 

Verified Answer
  • http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022

    CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified

    Single 12v Rail

    +3.3V@30A, +5V@30A, +12V@62A, -12V@0.8A, +5VSB@3.0A

    A dedicated single +12V rail

    Over-voltage and over-current protection, under-voltage protection,

    and short circuit protection provide maximum safety to your critical system components

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

All Replies
  • Hi rcittadini,

    The minimum system power requirement for GeForce GTX 650 Ti is 400W. So the power supply shipped with your system would suffice.

    Please reply if you have any questions.

    Thanks & Regards,
    Appu S
    #iworkfordell
    To know more about Dell’s Product Support, Drivers & Downloads, Orders & Dispatch status -> choose your region USA, India. For Dell Support Videos, click Here.

  • I wanted to switch the gpu to a nvidia gtx 660 ti. its minimum power requirement is 450w. is it to much for the xps 8700?

  • Hi Jacob58,

    XPS 8700 is shipped with 460W power supply. Nvidia GTX 660 Ti should work with the system without any issues. You would not require to change the power supply.

    Thanks & Regards,
    Appu S
    #iworkfordell
    To know more about Dell’s Product Support, Drivers & Downloads, Orders & Dispatch status -> choose your region USA, India. For Dell Support Videos, click Here.

  • Hi - Can anyone tell me if this power supply is compatible with the XPS 8700:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817341018&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

    I'd like to install a GTX GeForce 780. 

    thanks. 

  • Its too small. its very Dodgy about EPS 12v Version 2.93 Its made in china.  If it overvoltages and destroys  everything including but not limited to CPU, RAM, HARD DRIVE, MOTHERBOARD etc will you still think its safe?Surprise

    25 Amps Max on the 12v rail is TOO SMALL for the GTX780.

    The 780 requires an 8 pin and a 6 pin power connector.

    This means 300W for the 8 pin PLUS 150W for the 6 pin PLUS 75W for the X16 Slot.

    This means you need Guaranteed and Stable 528W for the 12v Rails NOT INCLUDING
     what the Processor, hard drive, etc needs from the 12v rail.  528W = 44 AMPS 12v

    If you add up all the numbers 150+552+3.5+12.5 = 718 Watts

    Here is where the problem comes in.

    The 5v is 125W , The 3.3 is 82.5 W , The 12v is 300W X 2 , The -12 is 3.5W , The 5VSB is 12.5 W

    = 823.5 Watts Total.  The FCC label is Fake since there is no certification number listed (Which is required for it to be Legit)  E243823 is legit for OCZ UL Listing

    http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=E243823&ccnshorttitle=Power+Supplies,+Information+Technology+Equipment+Including+Electrical+Business+Equipment+-+Component&objid=1076851755&cfgid=1073741824&version=versionless&parent_id=1073787374&sequence=1


    Get a

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139021

    CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified

    Single 12v Rail

    +3.3V@30A, +5V@30A, +12V@62A, -12V@0.8A, +5VSB@3.0A

    A dedicated single +12V rail

    Over-voltage and over-current protection, under-voltage protection,

    and short circuit protection provide maximum safety to your critical system components

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • Wow, thanks for the info. Can you suggest one that would work for me in my XPS 8700?

  • http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022

    CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified

    Single 12v Rail

    +3.3V@30A, +5V@30A, +12V@62A, -12V@0.8A, +5VSB@3.0A

    A dedicated single +12V rail

    Over-voltage and over-current protection, under-voltage protection,

    and short circuit protection provide maximum safety to your critical system components

    Report Unresolved Customer Service Issues here
    I do not work for Dell. I too am a user.
    The forum is primarily user to user, with Dell employees moderating.

  • Ok, great will check it out thanks!

  • I have a 8700 too. Let me know how that PSU upgrade worked for you and how the installation went as well. Thanks!

  • I am also a 8700 owner and thinking of upgrading

  • Will this fit in an 8700, though? The P/S that comes with an 8700 is about 2" shorter than a standard one and there's not much room left even at that.
  • I wished to upgrade the 460 watt power supply of the Dell 8700 with a Corsair TX650. I was told by a Corsair technician that the eight pin connector on the TX650 could be split into two four pin connectors and that one of the four pin connectors could be connected to the four pin socket on the 8700 mother board. When I performed this operation. The 8700 would no longer power on and needed the mother board to be replaced. When I called back a Corsair technician, he said the split off 4 pin connector delivered 24 volts not 12 volts. Consequently, I advise that you be certain that the voltage delivered to the 4 pin connector on the 8700 mother board is 12 volts.
  • I wrote the previous post about the Corsair TX650. I am told that although the 4 pin socket on the XPS 8700 is labeled 12 volts, that designation actually means that each of 2 pins delivers 12 volts and that the socket is constructed to receive 24 volts. When I installed the connector, I may have misaligned the pins, which would cause the motherboard to fail. If anyone has installed this power supply in an XPS 8700, I would be pleased to hear. There are 4 ways to align the pins, and I am told only one will avoid damage. It's necessary to be certain the latch on the connector fits the projection on the socket. Even so, I don't know if this power supply will work. Since I already destroyed one motherboard with this power supply, I do not wish to try another installation that might be OK. James
  • Not sure where we are with this but I just installed CX Corsair 750M (80 Bronze), got it for $80 on Amazon and it works perfectly.  The 12V 8 pin is easily split in 2 for a 4-pin and there were no issues - still 12volts delivered..  Connected it to my brand new GeForce GTX 770 and everything is working perfectly.  Hope this helps -- I went through alot of different forums that helped me get everything together - especially tom's hardware.  Thanks.

    Dell XPS 8700

    Intel Core i7- 4770

    16 GB

    Samsung SSD 205GB

    GeForce GTX 770

    Corsair CX 750M (PSU)

    Dual Monitors

  • H iDami

    I have some experience doing upgrades on some my old computers from years ago.

    Was this a pretty simple project for you?

    Did the PS drop right in?

    Will the pin configuration be obvious?

    I have a 8700 as well

    I7-4770

    8 GB ram (plan to go to 16)

    WD 500 GB drive

    Seagate 1 TB drive

    Thanks for your feedback