Topic Title: nb multiplier
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Created On: 03/12/2014 05:56 PM
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 03/12/2014 05:56 PM
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Hello you all!

I would like to know whether there are generally a problem with the nb multiplier under use on a 990FX chipset and how amd professes here to this trouble, currently it is about the 990FXA-GD80 from MSI ... can this be true of the multipliers in bios from 11 to another value any questions and also save, but this is not accepted ... others and I have already contacted msi it often, but you are constantly being turned down in the later runs ... amd would not provide this support, this will make it stubborn to fix ... what is it and what true at all informative on this and if so, what is that?

with friendly greet from Germany,
F.-B. W.

 03/12/2014 08:03 PM
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My NB link runs fine at 2600MHz, or 5200MT/s as it is a bi-directional link.

AMD FX-8350 w/ Corsair H105, ASUS Sabertooth 990FX Gen3/R2, 8GiB G.SKILL DDR3-2133, XFX HD 7970 GHz Edition, 1TB Samsung 850 Evo, 256GB OCZ Vector, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, Corsair C70, HP ZR2440w, Win 7 Ult Ed x64
 04/04/2014 03:22 AM
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I agree with Black_Zion here.

I have my CPU-NB running at 2600MHz as well.

According the information on the internet, it is rare for the CPU-NB to go much farther past ~ 2600MHz - 2700MHz. Beyond that will either become unstable, too much voltage is needed, or temperature is too high.

I thought my chip was slightly better than the rest, being able to run 2800MHz CPU-NB....but it turned out it is not 100% stable. It will only work sometimes.


FX-8350 @ 4.8GHz // ASUS Crosshair V Formula 990FX // Sapphire Vapor-X HD 7970 + Dual-X HD 7970 // Thermaltake Frio w/ push-pull (using Antec Formula 7 Nano-Diamond + Cooler Master JetFlo fans) // 8GB (2 X 4GB) G.Skill RipJawsX 2133MHz  // Corsair TX850 850W // Corsair Force GT 120GB SSD (OS) // Kingston V200+ 120GB SSD // WD Caviar Black 1TB // Windows 7 Ult x64

 04/29/2015 03:15 PM
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I'm having some problems changing the cpu-nb multiplier using the 990fxa gd80 v2 board.

I read a while ago the cpu-nb multiplier can not be changed in the bios and later found a post in MSI's forum suggesting it was AMD would not give MSI the code to fix the or update the bois, also the cpu pll voltage seems to be a problem too.


I would really like to know if this is true, that AMD have stopped supporting the 990fx chipsep in this way or if indeed this is in MSI support hands to deal with.


I have always been a big fan of AMD and ATI but this problem with a top of the line board really leaves me with questions as a customer.


Please could this problem be fix so I can continue to play with my hardware as intended and try to reach the 300fsb I so badly would like to try. I was able to do so with my bulldozer on a Asus board and got the best results but I'm stuck with a unstable system clock due to the cpu-nb
multiplier being stuck at stock setting.


Thanks for any info, but I really would like to know who is responsible for this not being fixed.


EDIT: added link to MSI forum.


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