If your board is revision 1.0, you need to hardmod it to control vdroop, otherwise the 1.1 boards have a semi-functional LLC...Originally Posted by aRkangeL
If your board is revision 1.0, you need to hardmod it to control vdroop, otherwise the 1.1 boards have a semi-functional LLC...
Smile
OMG...
And what hardmod are we talking about?!
I just have read all the thread and now Im understanding the problem.
And I guess that Gigabyte dont will fix that because they say that wasn't a problem, but only the "AMD AM3+ load line calibration design guide"
I think that is stupid, but can we do? nothing, anyone knows if this can be fixed with a new bios!?
And Asus Mobos have the same issues?!
The Crosshair V Formula does not have the same Vdroop problem. Unfortunately there is no way to fix revision 1.0 without a hard-mod, hence the need for revision 1.1.
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I gonna play with this one and maybe on the next times i will RMA this one to get one rev. 1.1
Contact sin0822, i think he knows how to do the hard mod.
990FXA-UD7 hard mod. 100ohm resistor (don't bother with a variable as pictured) to replace 0ohm. Be forewarned, I actually tried this. Those resistors are tiny. I'm no noob at soldering, but I borked my board trying to do it. If you aren't very good with a soldering iron in extremely tight real estate, think long and hard before trying this mod.
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No Im not doing this, I dont want to RMA the mobo for the worse reason!
I will keep the mobo, and see if in future gigabyte release a new bios with less vdrop or wait for mobo got problems and RMA.
Last edited by aRkangeL; 11-11-2011 at 04:29 PM.
One question that I have is, does anyone have a ud7 with a bulldozer cpu to check it there's still any vdroop with it?
Yes, it does. I just did the mod and it is like a completly different board now. In a positive way.
So it seems I have to take out my board and do a bit soldering. It's a 100K resistor right?Yes, it does. I just did the mod and it is like a completly different board now. In a positive way.
Yes, 100k seems to work fine.After you have done it, I suggest you set vcore to about 0.1v LESS than you think you need. It seems that the voltage get higher than what you set in BIOS after doing this mod...
They never will, so keep hoping.
Power circuitry on Rev 1.0 and 1.1 boards is different, 1.1 allowing it to have LLC that still doesn't even work fully.
Smile
Hum ok.
And anyone have one UD7 rev 1.1 to show how it LLC work on it!?
http://www.overclockers.com/gigabyte-990fxa-ud7
Smile
^
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^
rev 1.1 improved vdroop but still has it!!!
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For people trying the mod, remember that RMA eligibility is only meant for replacing broken boards due to defect. If you break it yourself, you've voided the warranty.
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in graphic interface in mainboard tab in cpuz I see 4x link but should be x16 on ud7 ver2. anyone have this problem?
f6 and f5 bios show the same thing. wtf is going on?
Last edited by trans am; 11-15-2011 at 02:12 PM.
Is it possible to generally RMA a board just because of the VDROOP issue? It would be good too know for future boards. I've never tried to RMA a board because of any other reason then it being broken. But I would like to do it with my UD3 and see if they have rev 1.1 in stock. Doing the MOD is not an option for me because my soldering skills are non existent
Gigabyte GA-990FXA-UD3 rev 1,0| AMD FX-8120@?| Corsair H100| 2x4 GB Patriot Viper Xtreme Division 2 PC15000 9-11-9-27| 2*Powercolor Radeon HD6970 2048MB @ Crossfire| 3*NEC MultiSync EA231WMi 23" Monitorer @ Eyefinity| OCZ Vertex 3 60 GB| 2*Intel 80GB X25-M G2 @ RAID0| Cooler Master Silent Pro M1000W| Cooler Master ATCS 840|
I miss the option in BIOS to turn off cores on my 990FXA-UD7, with BIOS F6 and FX-8150... Anyone knows if that is about to be fixed? Before the weekend would be great...
EDIT: Gambit_2K: I know EVGA accepted RMA due to something that was fixed from one version to another. EVGA went out officially though, and said that they accepted RMA. I doubt it would be possible to RMA this board though. But if you contact Gigabyte and try, please keep us updated how it is going.
Last edited by blossa; 11-16-2011 at 01:04 AM.
Kepp us updated!I miss the option in BIOS to turn off cores on my 990FXA-UD7, with BIOS F6 and FX-8150... Anyone knows if that is about to be fixed? Before the weekend would be great...
EDIT: Gambit_2K: I know EVGA accepted RMA due to something that was fixed from one version to another. EVGA went out officially though, and said that they accepted RMA. I doubt it would be possible to RMA this board though. But if you contact Gigabyte and try, please keep us updated how it is going.
Im in contact with Gigabyte, to know if this is are a issue or not!
Edit:
Some screens
All settings stock!
C1E, C&Q, Turbo core, all Disable
Last edited by aRkangeL; 11-16-2011 at 09:15 AM.
Good luck!
Maybe you can do me a favoir... Can you just double check with AMD Overdrive if you can have different multipliers for different cores on the CPU? As I remember that was possible with Phenom II, with FX-8150 I cannot get that to work.I have to have the same multiplier on all cores.
Ok I Will check,
And so Gigabyte says, if the boards its OK with default settings you dont have problem...
WTF?! and I say to him, are we talking about €200+ mobo, and for less money I can buy the CVF and overclok better my CPU.
I will waiting some weeks to see what its going on, and maybe on the start of the year make RMA of the mobo, to get one with LLC,
I have check the LLC function and it sucks but not so mucth as this boards without!
Unfortunately you can't adjust different core multipliers individually with BD. At least I've been unable to find out how. Gigabyte and ASUS software both have only one adjustment.Good luck!
Maybe you can do me a favoir... Can you just double check with AMD Overdrive if you can have different multipliers for different cores on the CPU? As I remember that was possible with Phenom II, with FX-8150 I cannot get that to work.
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