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I cant pass 4.1ghz in my FX 8120 @ MSI 990XA GD55

post #1 of 10
1/14/13 at 6:28am
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  • cisx
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I cant raise the voltage anymore, my msi 990xa gd55 DONT LET ME RAISE ABOVE 1.446v, ive got auto voltage for nb cpu and nb, what other thing could i do????
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post #2 of 10
1/14/13 at 6:32am
Damn that's to much i got a dud and i use 1.42v for 4.4ghz .... What cooler do you have ?
Do you have all power saving options disabled in the bios?
Red Dragon
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Red Dragon
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post #3 of 10
1/14/13 at 6:42am
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  • cisx
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IVE GOT A COOLERMASTER TX3, IS FINE, UNDER PRIME 95 GOT 62° CELCIUS, i cant drop the voltage, under 1.43v @ 4.1 ghz runs prime excellent for a lot of hours, but at 1.42v fails at 30min or less, power saving options are disabled, NB VOLTAGE AND CPU NB VOLTAGE are auto, what other thing can i do????
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post #4 of 10
1/14/13 at 6:55am
Quote:
Originally Posted by cisx View Post

IVE GOT A COOLERMASTER TX3, IS FINE, UNDER PRIME 95 GOT 62° CELCIUS, i cant drop the voltage, under 1.43v @ 4.1 ghz runs prime excellent for a lot of hours, but at 1.42v fails at 30min or less, power saving options are disabled, NB VOLTAGE AND CPU NB VOLTAGE are auto, what other thing can i do????

If the board is voltage limited you will struggle with a high oc. Even so your cpu seems to be taking a lot of v-core for the low clocks. I get up to 4.4 at 1.38 with my fx8120, its above 4.4 where the volts required and increasing temps need balancing with actual rather than placebo gains. I run 24/7 at 1.47 4.7ghz but can not go above that due to temps causing instability above 55c on the cores.

Do you have any other voltage settings such as llc?, are you clocking with the multiplier or bus or combination of the two. Try achieving the same result in a different way.
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Ice white
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post #5 of 10
1/14/13 at 6:57am
Then i think your phases of your motherboard are not strong enough to deliver that kinda power to your cpu. (your limited by your Mobo's power phase)
So i think you gotta settle with a lower overclock so start with 4.0 Ghz and see if u get that stable, if not go lower and so forth.

Good luck
Red Dragon
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Red Dragon
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post #6 of 10
1/14/13 at 6:59am
Quote:
Originally Posted by Ghost12 View Post

If the board is voltage limited you will struggle with a high oc. Even so your cpu seems to be taking a lot of v-core for the low clocks. I get up to 4.4 at 1.38 with my fx8120, its above 4.4 where the volts required and increasing temps need balancing with actual rather than placebo gains. I run 24/7 at 1.47 4.7ghz but can not go above that due to temps causing instability above 55c on the cores.

Do you have any other voltage settings such as llc?, are you clocking with the multiplier or bus or combination of the two. Try achieving the same result in a different way.

My conclusion exactly and after googling this board it's defenitly the power phase not being capable
Red Dragon
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Red Dragon
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post #7 of 10
1/14/13 at 7:02am
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Originally Posted by MojoW View Post

My conclusion exactly and after googling this board it's defenitly the power phase not being capable

Fx Zambezi 8 series are massively power hungry unfortunately. I had an asrock 990fx extreme 3 which couldn't handle my fx8 above 4.1 due to insufficient vrm phase quality. It handles my fx4170@4.7 fine but the fx8 is a different proposition. I had to get the sabertooth.
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Ice white
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post #8 of 10
1/14/13 at 7:11am
Quote:
Originally Posted by Ghost12 View Post

Fx Zambezi 8 series are massively power hungry unfortunately. I had an asrock 990fx extreme 3 which couldn't handle my fx8 above 4.1 due to insufficient vrm phase quality. It handles my fx4170@4.7 fine but the fx8 is a different proposition. I had to get the sabertooth.

Yeah double the cores/modules and it's in need of way more power and that's mainly because it doubles the heat in the cpu and that's why the 8 cores have trouble clocking higher (Most of them anyways)
Atleast you got a costum loop, that's why you need 1.38 and i need 1.42 for the same oc my h100 just doesn't control the excessive heat like it should.
i'll bet if i get a costum loop my fx will be less cripled by the heat.
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Red Dragon
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post #9 of 10
1/14/13 at 7:32am
Thread Starter 
  • cisx
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this board does not have LLC, for example i got 200x18 prime stable with auto volt, then 200x20 with 1.41v prime stable, and then 200 x 20.5 at 1.43 prime stable again, but i cant raise above further, can i play with nb and cpu nb voltage, HOW MUCH voltage can i apply???

thanks to MOJOW and GHOST 12 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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post #10 of 10
1/14/13 at 8:36am
Quote:
Originally Posted by cisx View Post

this board does not have LLC, for example i got 200x18 prime stable with auto volt, then 200x20 with 1.41v prime stable, and then 200 x 20.5 at 1.43 prime stable again, but i cant raise above further, can i play with nb and cpu nb voltage, HOW MUCH voltage can i apply???

thanks to MOJOW and GHOST 12 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

You can play with the cpu/nb, nb but that is mainly for clocking with the fsb and ram. For a standard multi oc, someone correct me if im wrong, you don't need to touch them. Try clocking with the bus but I feel with the voltage limits of your board you will be stuck to something similar either way. The problem with the fx8 you need a pretty high end board that can supply the power required for the max clocks.

Yeah double the cores/modules and it's in need of way more power and that's mainly because it doubles the heat in the cpu and that's why the 8 cores have trouble clocking higher (Most of them anyways)
Atleast you got a costum loop, that's why you need 1.38 and i need 1.42 for the same oc my h100 just doesn't control the excessive heat like it should.
i'll bet if i get a costum loop my fx will be less cripled by the heat.

I had a h100 before the loop, its on the fx4170 now and it could handle typical gaming load up to maybe 4.6ghz on the 8 core but would hit thermals in prime at that clock speed pretty quickly. Its fine on the 4170@4.7
Edited by Ghost12 - 1/14/13 at 8:38am
Ice white
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Ice white
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