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Bitcoin Forum > Other > Archival > CPU/GPU Bitcoin mining hardware > 4th GPU wont run on my 800w PSU
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gary492 (OP)
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July 18, 2013, 03:56:00 AM
 #1
Okay so i have 2 Radeon 5770 and a 5850 running on my 800w psu and it works fine but when i try to add a another 5850 it crashes is there any way to run the other card without buying another psu
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July 18, 2013, 04:11:22 AM
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Quote from: gary492 on July 18, 2013, 03:56:00 AM
Okay so i have 2 Radeon 5770 and a 5850 running on my 800w psu and it works fine but when i try to add a another 5850 it crashes is there any way to run the other card without buying another psu

You could try undervolting.  Or use two PSU's.
jeannie
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July 18, 2013, 04:33:47 AM
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Try upgrading the GPU instead, the 5770 and 5850 won't give you much hashing power anyway
gary492 (OP)
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July 18, 2013, 04:42:35 AM
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Quote from: notlist3d on July 18, 2013, 04:11:22 AM
Quote from: gary492 on July 18, 2013, 03:56:00 AM
Okay so i have 2 Radeon 5770 and a 5850 running on my 800w psu and it works fine but when i try to add a another 5850 it crashes is there any way to run the other card without buying another psu

You could try undervolting.  Or use two PSU's.

how do you under volt
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Hippie Tech
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July 18, 2013, 07:12:32 AM
 #5
What make/model and how old is the psu ?

Sounds like the 5830s are using the same rail.

HT xD
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gary492 (OP)
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July 18, 2013, 07:13:58 AM
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Quote from: Hippie Tech on July 18, 2013, 07:12:32 AM
What make/model and how old is the psu ?

Sounds like the 5830s are using the same rail.

HT xD

i got it used and its a soly tech
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July 18, 2013, 07:19:11 AM
 #7
How many +12v rails/combined amps and what is it's rating ? eg. 80+ gold.. ect..

If its a budget like psu, I wouldn't push it too hard.
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gary492 (OP)
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July 18, 2013, 07:20:31 AM
 #8
Quote from: Hippie Tech on July 18, 2013, 07:19:11 AM
How many +12v rails and combined amps ?

If its a budget like psu, I wouldn't push it too hard.

what are How many +12v rails  Grin
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July 18, 2013, 07:23:01 AM
 #9
LMAO.. the stats are on the psu...
http://therealnews.com/ http://www.corbettreport.com/ http://www.nkusa.org/ http://johnpilger.com/ http://wearechange.org/ http://www.911thology.com/ http://www.drjudywood.com/ http://freedomflotilla.org/
http://brovids.com/ http://www.fullyraw.com/ http://www.hopeforpaws.org/ http://cowspiracy.com/ http://speciesismthemovie.com/ http://thekindlife.com/ http://sharkonline.org/ http://gerson.org/
http://www.thunderbolts.info/ http://www.peacefuluprising.org/ http://www.adamvstheman.com/ http://mediasolidarity.com/ http://ancientexplorers.com/ http://www.thrivemovement.com/ http://stopthecrime.net/
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July 18, 2013, 08:18:53 AM
 #10
new psu is must to run 4 cards
HellDiverUK
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July 18, 2013, 09:58:28 AM
 #11
Quote from: gary492 on July 18, 2013, 03:56:00 AM
is there any way to run the other card without buying another psu

No.
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