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Is my 400w psu enough for cards powerful than 5670?

Last response: in Graphics & Displays
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January 1, 2011 7:15:34 PM

Hi guys, I was recommended to get a 5670 (in this forum) for my system which I am happy with atm. But I didnt know what Amps my unbranded 400W PSU had.
It has 17A on 12V, 25A on 5V and 18A on 3.3v.

My specs are:
AMD Athlon II X4 640 (3ghz)
4GB DDR3 RAM
Sapphire ATI 5670 512MB
500GB Hard Drive
Windows 7 Ultimate 64 Bit
Motherboard: Biostar n68s3+

and I play on 1280x1024 resolution on 17' Monitor.

So i want to know is can my PSU/Motherboard able to handle a 5750/5770?
Thanks
January 1, 2011 8:07:10 PM

the 17A just surfaces the min requirement of 5670
i wont put my luck to the test with that psu....
try corsair cx400 (30A)
its more than enough for your card and a bit on the cheaper side too!
a c 218 U Graphics card
a c 212 V Motherboard
January 1, 2011 8:58:08 PM

I wouldn't recommend your PSU for any GPU that requires an external PCI-E power connection. I strongly suggest you beef up your PSU before you proceed. What is your (potential) budget?
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January 1, 2011 11:01:51 PM

well i only had this system for a few weeks, but thanks for the tips. so if im getting new card a new psu is what i shall get too. Just wondering my current mobo has 2 pci slots? do the power connecters fit in there?
a c 218 U Graphics card
a c 212 V Motherboard
January 2, 2011 1:11:03 AM

qasim1991 said:
well i only had this system for a few weeks, but thanks for the tips. so if im getting new card a new psu is what i shall get too. Just wondering my current mobo has 2 pci slots? do the power connecters fit in there?

No, the PSU connects to a 24-pin and a 4 or 8 pin connector on the motherboard. Good luck!
January 2, 2011 1:13:34 PM

Ok i reprashed that wrong, i know my mobo has a 4 pin and 24pin already but i think they are already used up. I meant to say is the power connector a card like the 5770 requires where does that go?
January 2, 2011 1:31:18 PM

Where does the 6 pin power connector from the card go to, is it the mobo?*
a c 218 U Graphics card
a c 212 V Motherboard
January 2, 2011 11:21:45 PM

qasim1991 said:
Where does the 6 pin power connector from the card go to, is it the mobo?*

The 6 pin PCI-E connector goes from the PSU into the GPU (video card). It is possible that your current PSU doesn't have the 6-pin connector. There are adapters available to convert the regular 4-pin MOLEX connector into a PCI-E (6-pin) connector.
January 3, 2011 1:41:29 PM

COLGeek said:
The 6 pin PCI-E connector goes from the PSU into the GPU (video card). It is possible that your current PSU doesn't have the 6-pin connector. There are adapters available to convert the regular 4-pin MOLEX connector into a PCI-E (6-pin) connector.


Thanks alot mate. I was really confused about it but now I understand
a c 218 U Graphics card
a c 212 V Motherboard
January 3, 2011 4:08:32 PM

You are welcome. HOOAH!!!
!