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[Official] Gigabyte GA-990FXA-Series Owners Thread/Club - Page 56

post #551 of 12377
Hi crossy82 - do you have any links to where you read LLC will be enabled in the BIOS for BD?
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post #552 of 12377
yea id like to see where you got that info as well, haha i searched pretty hard for it but couldn't find much.
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post #553 of 12377
According to Gigabyte the reason for the droop and load is due to LLC, it's not enabled for AM3 CPU's for some reason and only becomes active for BD. No idea why Gigabyte have done this, as Asus have implemented this on their boards. Fortunately the 990XA UD3 doesn't suffer badly, or at least there aren't many threads about it, but the FXA UD5 and 7 are horrible to OC apparently and there're lots of threads about them not working well.

I was quite convinced I was going to get this board but looking at the LLC option lacking in the BIOS and the VDroop being all over the place I might get the EVO instead, even though it's a lot more expensive. The one important thing to note is that the VDroop is generally terrible with Hexacores. Quads seem to be relatively VDroop free. The UD 5/7 thread is full of anger, I'd be furious too if I spent so much and got such bad performance.
__________________
Posted by LIRANAN.Another member of OCN.

http://www.overclock.net/amd-motherb...l#post14236216

I trying to find a site i saw something simular on,will post link when found.I will also ask Liranan on where he obtained info from,i no it the XA not FXA he is refering to,but this could well be why the UD* boards are suffering aswell.It seems to be a common subject with all Gigabyte 990 boards.

Here is a snip-it from a chinese site,seems to indicate that AM3 is difficult for AM3+ to work with.

According to the grapevine, bulldozers FX series processors is likely to be the end of August or September will be released, and 9 Series motherboards in June will be one step ahead. Although these Socket AM3 + new motherboard socket interface is compatible with AM3 Phenom II, Athlon II processor, but this combination is difficult to accept. In fact, the motherboard manufacturers themselves are reluctant to advance large-scale promotion of new 9 series. Means in accordance with AMD's early release is probably inevitable, but shipments will not be many, largely symbolic in nature.

I will look for more that i found,not easy to do,lol,i was digging deep.
Edited by crossy82 - 7/16/11 at 11:23am
post #554 of 12377
I got that information from a link earlier in this thread in which a Gigabyte community helper was trying to get information on the VDroop. I seem to have been the only one who read those two threads but the guy said that he got confirmation from GA that this is the way the boards have been designed.

I don't understand why GA have done it like this, as ASUS have enabled LLC control even with current Phenom CPU's, and BD is still several months away.

Edit: Here is said thread. Absic spends quite a bit of time trying to ascertain the information I posted. He claims it's a bios issue and not a hardware one, relating to the LLC. I agree with those who say GA are being lazy with their BIOS coding. I assume it's to encourage people to switch over to BD when they're released, which still doesn't look good for them. And they lack UEFI, something even ASROCK boards have.
Edited by Liranan - 7/16/11 at 7:13pm
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post #555 of 12377
I've read the thread on the Gigabyte forum, and I've also added my 2p to it. It's common knowledge now that Gigabyte are sticking to their 'it's meant to do that' story. They don't specifically mention Bulldozer but they say that the design strictly follows AMD's guidelines for AM3+. How it will perform with a BD installed is anyone's guess. Maybe LLC will automatically kick in when a BD is installed, however Gigabyte certainly haven't come out and said this will be the case, and they also haven't said that LLC is not implemented for AM3 CPU's (although thats clearly true lol).

But yeah, implementing something like this without offering LLC control is pretty bad.
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post #556 of 12377
Quote:
Originally Posted by Lostintyme View Post
Anyone have a new bios Past F5 B? Sorry for grammar Using voice recognition software
Hey guys,he ask BIOS F5b for his board UD5,not UD7.
what is normal,because latest is F4.
For UD7,latest is F4b.....so must come F4 first.
Look at his sig.
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post #557 of 12377
Quote:
Originally Posted by stasio View Post
Hey guys,he ask BIOS F5b for his board UD5,not UD7.
what is normal,because latest is F4.
For UD7,latest is F4b.....so must come F4 first.
Look at his sig.
No, the latest is F5B, but it's not on the website. Send me a PM for it.
    
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post #558 of 12377
Quote:
Originally Posted by Lostintyme View Post
No, the latest is F5B, but it's not on the website. Send me a PM for it.
For which board?
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post #559 of 12377
Quote:
Originally Posted by Sin0822 View Post
Hey for those of you who want to get rid of the vdroop i have a solution. I know some of you don't wanna wait for an official fix, whatever your reason may be, but Intersil PWMs are easy to mod. I have made mods for the UD7, of course only the experienced OCers should even attempt it, but its its actually pretty simple, easier than most mods.

Before I begin let me explain how its works, we are replacing a resistor that is connected to pin4(droopcontrol for NB and Core). its a simple mod, you replace the resistor already in place, and replace it with exactly 100K ohm of resistance, either through a fixed resistor, or a pot as shown in the picture.

If you do this mod, you cannot go back to having droop.

Honestly, the vdroop isn't going to hurt your OC, just set a higher voltage so that your load voltage is what you had on previous boards, or what it needs to be to maintain stability. A bit higher voltage at idle isn't going to hurt anything nor produce much heat, load voltage is really all that matters, of course please do respect voltage limits.

I take ZERO(0)(NO) responsibility for what you guys do, if you can't handle a soldering iron don't attempt. If you have doubts just set the voltage higher instead of doing this.

I am told that this vdroop is part of AM3+ official design guides, so any type of LLC or this mod is not how the CPU wants to be powered, but heck we are OCers, so enjoy.

THE MOD SPOT FOR UD7 ARE NOT THE SAME as the UD5!!!! PLEASE DO NOT MIX UP!



990FXA-UD7:


PS: the UD5 has a very similar vdroop mod possible too, but I need an upclose picture of its PWM, just like the one above.

If you have one for the UD5 then i may very well buy one. weather or not the vdroop hurts or not i don't care I want a solid board so the vdroop still isn't acceptable. TBH i wish ASUS had a board with the same layout having a pci at the bottom so i can keep my Xonar and run CFX (each card taking 2 slots).

Think i'm still gonna wait may go get a socket fm1 or even intel.
Edited by cdoublejj - 7/17/11 at 1:48am
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post #560 of 12377
Quote:
Originally Posted by stasio View Post
for which board?
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