Can't overclock northbridge

[mihalyk2000]

Every time I try to modify northbridge in BIOS, nothing happens, even worst, my RAM is going from DUAL channel to SINGLE channel. Even if I change my NB to 2200+, in the Windows it boots and CPU-Z shows 1999.9MHz and RAM going from DUAL Channel to Single.
The moderboard is M5A78L-M LX3 latest bios 95W 3+1VRM, running FX 6300 4.2 at 1.325V(while gaming 60C), stock cooler, OC-ed HTT to 2600MHz(max). 200 base clock.
First question, can I see improvements from OC-ing NB, and second, how much I should raise it(even if I need to raise the voltage, for how much is safe)

 

[TheoneandonlyMrK]

Every time I try to modify northbridge in BIOS, nothing happens, even worst, my RAM is going from DUAL channel to SINGLE channel. Even if I change my NB to 2200+, in the Windows it boots and CPU-Z shows 1999.9MHz and RAM going from DUAL Channel to Single.
The moderboard is M5A78L-M LX3 latest bios 95W 3+1VRM, running FX 6300 4.2 at 1.325V(while gaming 60C), stock cooler, OC-ed HTT to 2600MHz(max). 200 base clock.
First question, can I see improvements from OC-ing NB, and second, how much I should raise it(even if I need to raise the voltage, for how much is safe)

I take it you're after fps in games?.
It sounds like you need to up cpunb volts to me ,1.35 max but it will effect cpu temps a lot so step it up slowly from stock, also the Normal nb volts , again watch its temps i use hwinfo64 since it shows these and dont go above 1.275 again a bit at a time up from stock of 1.1.
I've run various overclocks and Nb as high as 2600 and while benches improved noticeably a few percent, games gained nothing i could notice and mines at stock now.
Good luck and again watch temps

 

[mihalyk2000]

I take it you're after fps in games?.
It sounds like you need to up cpunb volts to me ,1.35 max but it will effect cpu temps a lot so step it up slowly from stock, also the Normal nb volts , again watch its temps i use hwinfo64 since it shows these and dont go above 1.275 again a bit at a time up from stock of 1.1.
I've run various overclocks and Nb as high as 2600 and while benches improved noticeably a few percent, games gained nothing i could notice and mines at stock now.
Good luck and again watch temps

Thanks alot, I will try tomorrow if I have time! Maybe it was unstable at stock voltage and than it "resets" everything, no matter what I chosed...

 

[mihalyk2000]

Didn't worked

 

[Johan45]

Probably a motherboard limitation. That board really isn't made for overclocking a FX CPU, weak VRM and pretty old chipset

 

[Athlonite]

better off getting ya self a cheap 990FX chipset mobo those M5A78L-M are janky crap at best

 

[Vya Domus]

Just so you know gains from NB overclcocks are within the margin of error.

 

[eidairaman1]

Leave the NB and HT alone- put them back to stock. Just multiplier overclock, bear in mind if you FSB overclock it affects the ram speed even if you select a ram profile. I found there was greater benefit to just using multiplier only than messing with nb and htt, plus strain on vrms and temps are lower at that point. Your board could go pop pretty easily, fan your vrms and nb if you continue the path you are, even add a hsf to back of board on the socket itself.

Probably a motherboard limitation. That board really isn't made for overclocking a FX CPU, weak VRM and pretty old chipset

The only time I found my rig would go to single channel with only half the ram useable was trying cas 9 at 2400 on my 16GB kit, i think it was a spd/XMP/bios limitation. Cas 10 at 2400 is the lowest I can go.

 

[mihalyk2000]

Leave the NB and HT alone- put them back to stock. Just multiplier overclock, bear in mind if you FSB overclock it affects the ram speed even if you select a ram profile. I found there was greater benefit to just using multiplier only than messing with nb and htt, plus strain on vrms and temps are lower at that point. Your board could go pop pretty easily, fan your vrms and nb if you continue the path you are, even add a hsf to back of board on the socket itself.



The only time I found my rig would go to single channel with only half the ram useable was trying cas 9 at 2400 on my 16GB kit, i think it was a spd/XMP/bios limitation. Cas 10 at 2400 is the lowest I can go.

Hmm, nb is at 2000 and HT at maximum allowed by mobo, 2600. I OC-ed only by multiplier... RAM speed are at 1866+, so my CPU wouldn't gain more speed from them. But I can't understand why I can't change NB, or if I change nothing will happen just ram isgoing single channel

 

[natr0n]

Northbridge speeds mattered more on the phenom chips.

 

[mihalyk2000]

Northbridge speeds mattered more on the phenom chips.

Why ? And I would like to OC the northbridge to at least higher speeds, but MB OC doesn't let me i will call Asus i guess

 

[Johan45]

Why ? And I would like to OC the northbridge to at least higher speeds, but MB OC doesn't let me i will call Asus i guess

They won't be any help, there's nothing wrong with the board per se, it just has an old chipset with a weak power section. Not the best choice in motherboard for an FX CPU, really not surprised it's falling flat