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[Official] Gigabyte GA-990FXA-Series Owners Thread/Club - Page 322

post #3211 of 12375
Quote:
Originally Posted by Fordox View Post

right...
Your deneb cpu does not support higher than 1600MHz memory, it can be done with a bulldozer, which will go up to 1866.
and the whole story above is nice to know, but unimportand because stock cpu-nb speed is 2200MHz, which is enough for 1866MHz memory. if you go over those specs, you're overclocking and thats not as simpel as changing your bios to the factory settings. and the sweet spot of the CPU-NB for best performance with good stability, is about 2400 to 2600 MHz.

Don't forget that Overclocking the CPU-NB can also improve stability on PII's. Denab's benefit more than Thuban's do but its a nifty trick when overclocking on a PII Denab chip. My 955 BE won't hold 4.0Ghz with a CPU-NB less than 2600. YMMV.
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post #3212 of 12375
Quote:
Originally Posted by sumitlian View Post

*lots of stuff in pretty colors*

(For Deneb/Thuban)

Or you could do what AMD says and have your CPU-NB at 1.5x your ram speed, so 2400NB for 1600RAM, or in my case 2700NB for 1800RAM.

http://sites.amd.com/us/Documents/AMD_Dragon_AM3_AM2_Performance_Tuning_Guide.pdf

Bottom of page 12, first paragraph under "CPU NorthBridge Performance Tuning".
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post #3213 of 12375
I was on my BIOS and I accidentally press a key (not sure which one) and it pop'd this:

Image0573.jpg

I reckon this is good news, IF I can restore that BIOS.
Now I have to figure out how to accomplish that...
post #3214 of 12375
There used to be a "secret" advanced BIOS setting menu. Think it was accessed by CNTRL-F2 or something like that. You should be able to find it on this site.

WW
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post #3215 of 12375
Tried that, all the F's plus the numbers, basically and all the keys on the keyboard to no avail.
Edited by vonss - 6/4/12 at 2:35pm
post #3216 of 12375
Quote:
Originally Posted by KyadCK View Post

(For Deneb/Thuban)
Or you could do what AMD says and have your CPU-NB at 1.5x your ram speed, so 2400NB for 1600RAM, or in my case 2700NB for 1800RAM.
http://sites.amd.com/us/Documents/AMD_Dragon_AM3_AM2_Performance_Tuning_Guide.pdf
Bottom of page 12, first paragraph under "CPU NorthBridge Performance Tuning".

Great find! +1 for you my friend!
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post #3217 of 12375
Mail'ed back and forth with the utterly incompetent Gigabyte tech support and you can access the BIOS recovery by pressing ALT+F11 and flash your Backup BIOS with your main BIOS with ALT+F12.
However, when I tried to recover my BIOS from the backup chip, it said that is the same version, which is not.

It reads:

1. Remove fixture or change jumper
2. Press [Enter] to start the BIOS recovery....

BIOS is the same! Press any key to continue.

¿Can you say BS?
post #3218 of 12375
I downgraded to F6 then started to update to F7 and while it was doing it I reseted my PC, main BIOS corrupted and the back-up BIOS kicked in. Running Prime95 to see how it goes.

Edit: Same crap. I'm done rubbish and with Gigabyte's utterly, incompetent support that can't even read or write Spanish or English.

Now I'm just curious why it passes Small FFT's, In-place large FFT's testes on Prime95 but not the Blend.
Edited by vonss - 6/7/12 at 6:56am
post #3219 of 12375
Quote:
Originally Posted by vonss View Post

Well, that didn't work, I still can't achive the same OC as before now. Since that "VRM MOS protection" I have to increase my CPU voltage from 1.375v to 1.400v to achive 3.8GHZ, which is the "Sweet spot" so to speak, if you can do it at 1.375v, that is.
¿Anyone knows of a way to force the MoBo to restore the back up bios settings? Thanks in advance.

Ok, I have read a few of your post's and noticed a few things that make me question your overclock. Stock voltage for the 965 BE is 1.40Vcore for starter's. What are the rest of your overclock settings?



Quote:
Originally Posted by vonss View Post

I downgraded to F6 then started to update to F7 and while it was doing it I reseted my PC, main BIOS corrupted and the back-up BIOS kicked in. Running Prime95 to see how it goes.
Edit: Same crap. I'm done rubbish and with Gigabyte's utterly, incompetent support that can't even read or write Spanish or English.
Now I'm just curious why it passes Small FFT's, In-place large FFT's testes on Prime95 but not the Blend.


I read back a few page's but still have not found your original post about the issue. From what I have gathered, You updated BIOS to the latest version and then things went sour. Correct? I'm still reading your older post's though.



**EDIT**
I found your original issue, So you updated the BIOS from f6 to f7 and your OC became unstable all of the sudden. What did you do to test stability before the update? and what where your OC settings when you where running on F6 BIOS. It is possible your overclock was never stable to begin with. I can run my 955 at 3.8Ghz @1.40VCore and its stable for 5-6 hours of prime and minior gaming but the system will stall out/crash/freeze at random time's. @ 1.455Vcore My chip will push all the way to 4.0Ghz and is perfectly stable, after Vdroop (no LLC on my bard) I sit at 1.445vcore. Been that way for just about a year solid.
Edited by KhaoticKomputing - 6/7/12 at 7:27am
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post #3220 of 12375
Quote:
Originally Posted by KhaoticKomputing View Post

Ok, I have read a few of your post's and noticed a few things that make me question your overclock. Stock voltage for the 965 BE is 1.40Vcore for starter's. What are the rest of your overclock settings?
I read back a few page's but still have not found your original post about the issue. From what I have gathered, You updated BIOS to the latest version and then things went sour. Correct? I'm still reading your older post's though.
**EDIT**
I found your original issue, So you updated the BIOS from f6 to f7 and your OC became unstable all of the sudden. What did you do to test stability before the update? and what where your OC settings when you where running on F6 BIOS. It is possible your overclock was never stable to begin with. I can run my 955 at 3.8Ghz @1.40VCore and its stable for 5-6 hours of prime and minior gaming but the system will stall out/crash/freeze at random time's. @ 1.455Vcore My chip will push all the way to 4.0Ghz and is perfectly stable, after Vdroop (no LLC on my bard) I sit at 1.445vcore. Been that way for just about a year solid.

First off, I can run my CPU @ 1.275v at stock 3.4GHz. This silly Motherboard automatically sets the VCORE to 1.475v.
Before and after the update I ALWAYS ran a 2 hour Prime95 Blend Torture Test, if it passed that then I gamed for the rest of the day and when I go to sleep, I left it overnight running Prime95 to see if it was truly stable. It was, I used it @ 3.8GHz 1.375V for two weeks. My LLC is set to High, setting Ultra-High makes no difference in vdroop, but setting Extreme gives instead of, for example 1.375v, is1.408v.

I know is no "big-deal" but is just havin' a piss at my expense really. There is no logic in this behavior.
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