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GTS 450 voltage question.

post #1 of 21
Thread Starter 
So i have a GTS 450 at 900Mhz Core 2000Mhz memory 1800Mhz shader using msi afterburner.

i just noticed in setting an option to boost voltage up and i put it up to 1100.

so my question is does putting more voltage into a card make it more powerful or faster, im using a 650-watt psu and have lots more to use on my card. i also dont care about temps cuz i got 3000rpm.
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post #2 of 21
Don't try to go to high on the voltage,but 1.1V is fine for me ( & I run at around 940 mhz core). I've got a 620W psu, and it's fine.

BTW, the gts 450 (even overclocked won't take that much power, even sli won't).

Voltage doesn't make a card faster, it's clock speed, memory speed, and shader speed do. Voltage is just the power being supplied to the GPU.


(Disclaimer: I am not responsible for any damages)
Edited by Blazing angel - 10/21/11 at 9:53pm
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post #3 of 21
Thread Starter 
Quote:
Originally Posted by Blazing angel;15403756 
Don't try to go to high on the voltage,but 1.1V is fine for me ( & I run at around 940 mhz core). I've got a 620W psu, and it's fine.

BTW, the gts 450 (even overclocked won't take that much power, even sli won't).


(Disclaimer: I am not responsible for any damages)


how bout 1.5v? think i could hit 1ghz core
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post #4 of 21
The max voltage AB lets my 450's run is 1.162v, and i think maximum safe voltage is 1.175v. Just make sure your temps stay below 90c on full load.

My OC is also stable at 1.100v (900c/1800s/1900m), but on one of my 450's i was able to get 960c/1920s/2050m with 1.126v, and the second one topped at 925c/1850s/2000m @ 1.115v

I really doubt you could reach 1 GHz, but you could get 920-950 MHz.

PSU will be enough. A 500w PSU was able to handle my rig with 2 cards at full load, so a 650w can give lots of room for a single one.
Edited by Starbomba - 10/21/11 at 10:01pm
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post #5 of 21
Thread Starter 
Quote:
Originally Posted by Starbomba;15403805 
The max voltage AB lets my 450's run is 1.162v, and i think maximum safe voltage is 1.175v. Just make sure your temps stay below 90c on full load.

My OC is also stable at 1.100v (900c/1800s/1900m), but on one of my 450's i was able to get 960c/1920s/2050m with 1.126v, and the second one topped at 925c/1850s/2000m @ 1.115v

I really doubt you could reach 1 GHz, but you could get 920-950 MHz.

PSU will be enough. A 500w PSU was able to handle my rig with 2 cards at full load, so a 650w can give lots of room for a single one.

i get what you mean lol anyways i reached 1ghz at 1.1v
http://valid.canardpc.com/show_oc.php?id=2058437
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post #6 of 21
Quote:
Originally Posted by Tronic707x;15403849 
i get what you mean lol anyways i reached 1ghz at 1.1v
http://valid.canardpc.com/show_oc.php?id=2058437
But is it stable? Maybe my cards being single slot and heating more than yours cannot clock as high, but 1.100v for 1 GHz core? State your whole voltage, there are a couple more numbers that matter.

And the only other 1 GHz 450 i've seen before was running almost at 1.160v.
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post #7 of 21
Thread Starter 
Quote:
Originally Posted by Starbomba;15403871 
But is it stable? Maybe my cards being single slot and heating more than yours cannot clock as high, but 1.100v for 1 GHz core? State your whole voltage, there are a couple more numbers that matter.

And the only other 1 GHz 450 i've seen before was running almost at 1.160v.

1.162 voltage im gonna run some benchmark tests to see if stable and mess around with furmark btw add me.
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post #8 of 21
Max hardware voltage is 1.212v. This will require a bios flash in most cases. I needed all 1.212v for 1004mhz.
post #9 of 21
Quote:
Originally Posted by Tronic707x;15403891 
1.162 voltage im gonna run some benchmark tests to see if stable and mess around with furmark btw add me.
Oh i see.

Good luck with getting it stable, just watch temps. I bricked one 450 already because i pushed it to 96c for like an hour and after that it never worked right, even after baking (driver crashes on 2 fresh PC's, artifacting, random downclockings, Folding@Home/BOINC errors)
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post #10 of 21
Thread Starter 
Quote:
Originally Posted by Xinoxide;15403901 
Max hardware voltage is 1.212v. This will require a bios flash in most cases. I needed all 1.212v for 1004mhz.

do you know how to do a bios flash? i would like to get higher voltage.thank you
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