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is hd 6850 the best choice here? - Page 3

post #21 of 26
Quote:
Originally Posted by hilalpro View Post
here is the details..
switching power suplly

22a at +12v yellow
30 here... What can I say 22 is not very optimistic
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post #22 of 26
I'm running my 6850 on a nearly 4 year old 430W Antec EarthWatts PSU. Works fine.
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post #23 of 26
Quote:
Originally Posted by SSJVegeta View Post
I'm running my 6850 on a nearly 4 year old 430W Antec EarthWatts PSU. Works fine.
Yeah, well Antec 430W gives 400W, noname 450W gives 250-300 (probably)
22 amps, that's 260W on the 12V peak, if I'm not mistaken. meaning what, 150-170 constant? where the 6870 uses 130. Could work. But it's a streatch, you have HDD and DVD on the 12v too

PSU calculator says you need ~310W constant (total), in order to be safe. If you think you have them, you're safe With the 6850. 5850 still is gambling with the devil

And with that I'm off Good luck!
Edited by ronnin426850 - 12/26/10 at 4:36pm
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Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
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2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
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post #24 of 26
Thread Starter 
Quote:
Originally Posted by ronnin426850 View Post
Yeah, well Antec 430W gives 400W, noname 450W gives 250-300 (probably)
22 amps, that's 260W on the 12V peak, if I'm not mistaken. meaning what, 150-170 constant? where the 6870 uses 130. Could work. But it's a streatch, you have HDD and DVD on the 12v too

PSU calculator says you need ~310W constant (total), in order to be safe. If you think you have them, you're safe With the 6850. 5850 still is gambling with the devil

And with that I'm off Good luck!
looks like im gonna wait for hd 6830.. not only because of the PSU but CPU/PSU/and saving $..

if it can consume like a 5750 ~220w total at load and cpu wont bottleneck(maybe 5 to 10%) it at 1080p with high graphic.. i wont play above 60hz at full HD anyways..
post #25 of 26
If your PSU does not have an additional PCIe power connector, it is too old. PSU's older than circa 2003-2004 did not prioritize the +12v rail like newer PSU's do.

If you don't want to upgrade the PSU, you might have to get a video card without a PCIe power connector. Even the 5750 requires a PCIe power connector. Something like a 5670 runs without PCIe power connectors.
Edited by Riou - 12/27/10 at 1:11am
post #26 of 26
Thread Starter 
Quote:
Originally Posted by Riou View Post
If your PSU does not have an additional PCIe power connector, it is too old. PSU's older than circa 2003-2004 did not prioritize the +12v rail like newer PSU's do.

If you don't want to upgrade the PSU, you might have to get a video card without a PCIe power connector. Even the 5750 requires a PCIe power connector. Something like a 5670 runs without PCIe power connectors.

if 6850 come with this it should be no problem since i have like thee non used 12v connectors..
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