help please

fabdabcab · 15 Dec 2010 at 21:14

my new graphics card turned up today xfx 6870 go to install it only to find i dont have enough leads to power it :mad:

it requires two power leads where as i only have one my power suply is also only a 450 watt i'm guesing i need to change my power supply ? im in process of upgrading i have the gpu above and was planning on an i5 and motherboard,ssd, what power would i need and more inportantly what power supply would give me all the leads i need? im so gutted :mad:

stulid · 15 Dec 2010 at 21:15

does the graphics card not come with a molex to 6pin pci-e adaptor?

if in the event it doesnt have a adapter in the box, can you list your pc's spec, also whats the make and model of the current psu you have?

Blue160 · 15 Dec 2010 at 21:19

You can get molex to PCIe adapters. If you post the exact spec of your PSU someone more knowledgeable than me will be able to tell you if it is good enough.

Edit: too slow

fabdabcab · 15 Dec 2010 at 21:26

no it only had a crossfire adaptor with it the power supply is a 450w made by CWT i currently have a AMD phenom II x2 550 3400mhz 4 gig mem 1 slot amd radeon 5750 graphics upgrading to mentioned above

stulid · 15 Dec 2010 at 21:28

you just need one of these - http://www.overclockers.co.uk/showproduct.php?prodid=CB-018-AK&groupid=701&catid=48&subcat=153

fabdabcab · 15 Dec 2010 at 21:32

thanks but i dont apear to have any of them white connectors spare either?

stulid · 15 Dec 2010 at 21:35

fabdabcab said:
thanks but i dont apear to have any of them white connectors spare either?

blimey!! how many harddrives do you have?

http://www.overclockers.co.uk/showproduct.php?prodid=CA-034-CS&groupid=701&catid=123&subcat=1084 - cheapest decent PSU that is up to the job.

Or completely bodge the wiring with two of these - http://www.overclockers.co.uk/showproduct.php?prodid=CB-006-GE&groupid=701&catid=48&subcat=153 that will give you the extra connectors you need.

fabdabcab · 15 Dec 2010 at 21:40

just one it must be a very basic power supply i have no spare cables whatso ever! i am going to want to cross fire to in the future so may aswell get a decent power supply now i suppose looks like im going to have to get this one delivered to work so i dont get my behind kicked by the missis !

fabdabcab · 15 Dec 2010 at 21:42

or does that cable plug in back of hard drive to draw power ? sorry im a bit out of date with comps these days?

stulid · 15 Dec 2010 at 21:42

crossfire you say, then this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN is perfect for two 6870 in crossfire, its modular, well built, and importantly has two 6pin pci-e and two 6+2pin pci-e connectors.

stulid · 15 Dec 2010 at 21:44

fabdabcab said:
or does that cable plug in back of hard drive to draw power ? sorry im a bit out of date with comps these days?

that cable just splits one of those white connectors into two, so adding two of those cables will then give you a further two spare, with the other two going back into your drives.

it will make your wiring in the case look like a war zone!!!

fabdabcab · 15 Dec 2010 at 21:45

thanks for your help

unp|dissy · 15 Dec 2010 at 21:46

stulid said:
crossfire you say, then this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN is perfect for two 6870 in crossfire, its modular, well built, and importantly has two 6pin pci-e and two 6+2pin pci-e connectors.

This.

I have one and tis a great psu.

Please dont arse about with the cables, get a PSU up for the job, you'll thank us in the future

fabdabcab · 15 Dec 2010 at 21:54

before i make my purchase will that psu be powerfull enough for the i5 if i decide to overclock i will all so be watercooling the system but not sure if my current water cooler is up to job! one thing at a time though! will there still be enough juice if i add things on at later date ect.. sorry for all questions.

stulid · 15 Dec 2010 at 21:55

yep,

http://www.anandtech.com/show/4061/amds-radeon-hd-6970-radeon-hd-6950/24 you can see power draw of various cards and sli/crossfire configurations

unp|dissy · 15 Dec 2010 at 21:56

fabdabcab said:
before i make my purchase will that psu be powerfull enough for the i5 if i decide to overclock i will all so be watercooling the system but not sure if my current water cooler is up to job! one thing at a time though! will there still be enough juice if i add things on at later date ect.. sorry for all questions.

Its currently happily powering my overclocked i5 760 @ 3.5 ghz, ssd 4GB ram and overclocked GTX580.

I wouldn't exactly bang other 580 in there but im sure there's a fair bit more juice left. So you should be fine

fabdabcab · 15 Dec 2010 at 22:00

thanks guys