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Safe 1090T Voltage Under Water?

post #1 of 19
Thread Starter 
As thread title asks. I've got all the components for my watercooling setup. In short:

- EK Supreme HF Full Copper CPU Water Block
- XSPC RX360 Radiator
- Six Xigmatek XLF1253 120mm Fans on Push/Pull
- IC Diamond 7 Carat Thermal Compound
- Swiftech MCP655 Pump

I also have my AMD Radeon 5870 card on the loop (with an XSPC Razor 5870 water block) but that's it.

I'm just wondering what the maximum safe voltage would be. I've always known it to be 1.55V but would this change for watercooled CPUs?

In my head, I can't quite find an explanation as to why watercooled voltages are allowed to be higher. I understand temperature-wise, but surely it's not just temperature that shortens a CPU's lifetime - too high voltages should also be able to do so..

Anyway, input is welcome - thanks!
    
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post #2 of 19
1.55, Anything above that, I think that you would start degradeing the life expectancy of your CPU. I'm also under water myself
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post #3 of 19
The "as long as your temps are in check, you can push 2.0 volts through the chip and it'll be fine" response is bound to be posted, which isn't right.
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post #4 of 19
You won't really get much more out of it at 1.55V+.
I can't get more then 4Ghz even tried 1.62V for suicide run.
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post #5 of 19
Quote:
Originally Posted by doritos93 View Post
The "as long as your temps are in check, you can push 2.0 volts through the chip and it'll be fine" response is bound to be posted, which isn't right.
2.0V Is that a joke?
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post #6 of 19
Thread Starter 
Hah, my thoughts exactly. I'll stick to 1.55V.

Also, does anybody have evidence to support (or disprove) the theory that low temperatures add any real value to stability?
i.e. Could one set a lower voltage for a stable overclock just because the cooling system is very good?

I'm very "iffy" on that one, too.
    
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post #7 of 19
Quote:
Originally Posted by nicksasa View Post
You won't really get much more out of it at 1.55V+.
I can't get more then 4Ghz even tried 1.62V for suicide run.
I managed to get 4.2GHz on my 1055T just fine for suicide run's
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post #8 of 19
Quote:
Originally Posted by Gib007 View Post
Hah, my thoughts exactly. I'll stick to 1.55V.

Also, does anybody have evidence to support (or disprove) the theory that low temperatures add any real value to stability?
i.e. Could one set a lower voltage for a stable overclock just because the cooling system is very good?

I'm very "iffy" on that one, too.
I couldn't get 4Ghz stable even with 1.57V on aird (load ~57°C with airco blowing on it). Then i went to water and it's nicely at 4Ghz 1.54V 47°C load.

So yes, phenom ii's like cold.
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post #9 of 19
Thread Starter 
Quote:
Originally Posted by nicksasa View Post
I couldn't get 4Ghz stable even with 1.57V on aird (load ~57°C with airco blowing on it). Then i went to water and it's nicely at 4Ghz 1.54V 47°C load.

So yes, phenom ii's like cold.
Sounds promising mate, thanks. I will try to improve on my current overclock, then!
    
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post #10 of 19
Quote:
Originally Posted by Gib007 View Post
Sounds promising mate, thanks. I will try to improve on my current overclock, then!
Don't forget to get 3GHz on the Northbridge aswell You get loads of extra performance by doing so
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