R9 290x how to keep memory hot ?

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Chris Gentry

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May 23, 2015
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well while trying to get my R9 290x perform to its max i noticed that i could keep the same clock while lowering the voltage when it heated up. when this happened i though it was the core but another look made me notice that it was accually that if the ram was hotter it required lower voltage to stay at the same clock. i came to this conclusion when i started messing with my memory clock. its at 1600mhz stable when heated up but will shut off the gpu until heated up.

gpu : stated above
voltage : 1.2v
Core : 1050
Memory : 1600

wish i could add a large voltage when it starts and then drop it once heated up

would anyone know of a way to keep the memory heated like a bit coin miner that i can set to keep the memory warmed up so it doesnt crash on start up?
 
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Calculagator

Calculagator

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Nov 18, 2014
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It sounds to me like you are violating the laws of physics. In general, chips handle higher frequencies better cold than hot. I would guess that your overclock works when hot because the GPU is hot enough to encounter the automatic throttling of the 290x. I bet that if you look at actual performance, it will actually be running slower with your hot overclock.
I could certainly be wrong, but what you describe seems very unusual to me.
 
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Jak_Sparra

Jak_Sparra

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Mar 31, 2006
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^^ what this guy said.

 
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Chris Gentry

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May 23, 2015
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i would like to add that it was forced to a constant 1050 mhz under gpuz confirms that its running @ 1050 core and @ 1600mhz memory
in msi afterburner with +50% power and +100 mv

when changing to 3d mode it shuts off due to it being 1.2v and needing 1.2+ volts at about 50-60c
but once i get the temp reading in gpuz and msi afterburner above 70-80c it accepts the 1600 mhz on the ram just fine

and its not the throttling ive experienced thottling due to heat this is not it ty for anymore replys

ive been at this about a month, was only getting 1500 mhz max memory clock when i first got due to not suspecting my ram could go higher, but with heating the card up i noticed that i could lower the voltage on the card with afterburner when the gpu hit 90c or so and and it would stay stable until it started cooling down "it would just blink blink blink, driver failure and revert back to the 2d mode"
then just today i tried raising the ram frequency on the gpu and
it took the 1650 mhz clock like it was nothing when heated up to 94c
with the same voltage it took when i tried maxing it when i first got it

its a XFX R9 290 > X Core Edition with elpida memory

ill post more later if anyone else posts again
 
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