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5770 safe voltages

1829 Views 13 Replies 7 Participants Last post by  Lord Xeb
I'll be getting my 5770 CF in a week or so and I am planning on overclocking them to 1GHz for everyday use and more for benching. I am wondering what we be a safe voltage for 24/7 and what would be okay for benching as long as I don't kill my card. I will probably have 5'C ambient for the bench run.

By the way, how does memory overclocking work on the 5770?
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Im interested in the answers for this thread since i have a 5770 on the way thats suppose to arrive on friday.
Can't comment on upping the volts as I haven't gotten a chance to play with mine yet, but I've seen many members here hit 960/1445 on stock volts which for GDDR5 is INSANE.

You should check out Club 5770, much more info to be had there


EDIT:

One thing to be weary of though regarding memory would be if you receive the V2 cooler (like this).
This reference redesign does not cool the memory or VRMs; if you get this I would strongly recommend adding ramsinks to the card (that or see if you can get V1 cooler)
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im getting v1 cooler
Quote:

Originally Posted by Bartmasta View Post
im getting v1 cooler
Great, what brand are you getting? If Asus or MSI you can adjust voltage with included software; if not those you can always flash to MSI BIOS (which many are doing) and use Afterburner to adjust voltage etc.

Most have been able to max the cards out on stock volts regardless though.
You should be quite pleased; one other thing I'd recommend is to use CCC 9.12 Beta drivers, as 9.11s have been giving a lot of people issues (though most were on Win 7 or Vista x64)
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Asus! I did a bit of research before buying my cards so I know what I'm getting. According to a review on guru3d anything more than 1.28 V is dangerous and you shouldn't try above 1.3 V unless you have really good cooling. So I think I will do 1.3 V for benching and whatever works for 1 GHz.
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I have run mine at 1.35v no problem. Just make sure temps don't go over 70c (which mine never does even at 1.35v) at that voltage, and you should be safe. I run 1.35v for benching and 1.28 for Crysis OC!
And 1.2v for mild oc.


According to Asus you can max out the slider, as long and temps are in check.
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Do not go any higher than 1.32. 1.35 would kill your 5770 very quickly
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well i'll be careful now
I'll just be OCing on standard voltages and see how far i can drag my 2 out :>
If you push 1.264v you can hit 1013MHz core!!!!!!
i pushed 1.25 and hit 1020/1440
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Each one is different. looks like you got a good one.
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