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[Official] Gigabyte GA-990FXA-Series Owners Thread/Club - Page 568

post #5671 of 12377
Quote:
Originally Posted by ganon551 View Post

Hi guys !

I'm new on this forum, and actually I registered because I have some troubles with my 990FXA-UD3, and I thought maybe you have a solution.

So here's the problem :

I recently bought a 990XA-UD3. I put a 8350 on it, with corsair xms 3 2000Mhz. I started overclock my cpu, as I always do.
So I put all the options like C6 state, etc, on disable, enable the HPC mode, start with 4.4Ghz and reboot.

First problem : My computer is doing a double boot. E.g when I push the button to boot, or when I restart from windows/bios, the com^puter first shutdown, then restart and do ok. On another forum they told me that this is a protection from the motherboard when cpu is overclocked.

Ok nice mobo.

So I continued my overclocking, and I saw my vCore moving a lot during OCCT. Like 1.39v idle to 1.44v. So I said "ok I'm just going to lower the LLC". And that's what I did. But even with a regular value, still 1.44v in load. Than I thought that my mobo was not doing ok, and I sent it back, to take a 990fxa-ud3.

And now I'm having exactly the same troubles, double boot, and LLC which doesn't want to let my vCore alone. Right now I'm at "medium" LLC value, +0.025vcore for 4.52Ghz, and in OCCT the vCore is going from 1.42 to 1.45. Then always moving from 1.452 to 1.44v.

So, do you guys have a trick to make my vCore goes straight ?

My bios is up to date (FC), my mobo is a rev3.0, my power supply is a corsair AX750 which has 1 year, and was perfect on my phenom.

By the way, sorry for my english, I'm french smile.gif

Thank you smile.gif

I'm a 6-core owner here and sure the 8-core guys will have a little more detailed, specific suggestions for you. BUT FOR NOW
I'm going to say, if it's misbehaving that badly, put everything back to "Optimized Defaults" for now. (AS IN RIGHT NOW!)
You want to make sure nothing has been damaged already and that you can still run perfect, nice and solid-stable at stock-everything. If it's still good at stock you can start easing it back up in baby-steps.

Also, before you start "easing it back up" I'd strongly reccomend reviewing closely the last 35-40 pages on this board. If you have an 8core with this mobo, Rev 3.0 there is ton of stuff you need to know before you start OC'n your rig. It's all there. 40 pages might seem like a lot but there's a lotta pictures and re-quoting of posts so it really won't take that long.
And I'm gonna let the 8-core bad-boys take it from here.

Good Luck
post #5672 of 12377
Yes two block

First is VRM block voltage regulation

and South bridge chipset

North bridge chipset use original heatshink water block is not passed this hole (themperature is low)

Water block is 990-fxa -UD3 Rev1

My board is 990 fxa UD3 Rev3

My new problem is two screws holding VRM block bent motherboard.

four cip left and four chip right is covered good.
Other chip is not good pressure on heat pad in VRM water block.

See picture
post #5673 of 12377
OT:
sorry guys. If I'd seen the responses to Gannon I wouldn't have piped up.
I see a post that wasn't there the last time I looked and I figure the page has refreshed! Then I respond to it and my post is a page and a half later! I just have to start tripple checking the page has refreshed before I assume no one esle has responded yet.
post #5674 of 12377
ODDLY mine never did that double post thing when I OC'd. It did it when I flashed the bios.
But if OC'd in a way it didn't like it just flat out refused to post and showed me the post/boot failure screen and waited for me to make choice. (re-boot/load-optimized defaults/or enter BIOS)

Maybe I should say, "never has yet"..... wth.gif
post #5675 of 12377
gannon551: I have the same setup as you with the same +0.025 overvolt and 4.52 overclock and see the same voltage fluctuations under load. It is designed this way. If it is stable with no errors when stress testing do not worry about it.
What you really need to worry about are the temperatures of the VRMs. If they get too hot they WILL warp the board and that is when things get ugly. The VRMs are under the heat sink between the CPU and the rear panel. They at least need a fan blowing on them and probably an aftermarket cooler too. I am $50 USD into aftermarket parts for my board, which would have been enough to buy a good board instead.

If you can get rid of it do it. If not, watch your temperatures closely and never ever let ANY temperature go over 60C.
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post #5676 of 12377
Quote:
Originally Posted by miklkit View Post

gannon551: I have the same setup as you with the same +0.025 overvolt and 4.52 overclock and see the same voltage fluctuations under load. It is designed this way. If it is stable with no errors when stress testing do not worry about it.
What you really need to worry about are the temperatures of the VRMs. If they get too hot they WILL warp the board and that is when things get ugly. The VRMs are under the heat sink between the CPU and the rear panel. They at least need a fan blowing on them and probably an aftermarket cooler too. I am $50 USD into aftermarket parts for my board, which would have been enough to buy a good board instead.

If you can get rid of it do it. If not, watch your temperatures closely and never ever let ANY temperature go over 60C.

Same except for the CPU. To get that same 4.5Ghz OC his 95w 6100 is reaching all the way from a stock of 3.3Ghz, vs your (125w) 8-core is only pushed from the stock of 4.0. Relatively speaking he's looking at much more agressive OC, which is why he's seeing something top out at 70C (IMO) and I believe it's been reasonably established on this board, the 8cores and the 6cores respond differently in terms of of TEMPS to OC. My guess is if you were to push yours to say 4.85Ghz (a proportionally equivilent OC) you'd be seeing in excess of 70C. Just a guess.

But you are dead on about the 70C vs 60C. REGARDLESS of processor, he wants to keep ALL TEMPS under 60C by WHATEVER means necessary. Better cooling or lower the OC, whatever works.
post #5677 of 12377
Not true at all. Yes his over clock is more aggressive percentage wise but the 8 core has more heat to dissipate due to having two more cores. If voltage and frequency were the same you would still need more cooler for the 8 core.
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post #5678 of 12377
Thank you all for replies smile.gif

So I tried to set my multiplicator on auto, and to increase my bus, but it's still the same : Double boot troubles :/

Which means I have no choice but keep my computer like this. My DD is a SSD, so that's ok for mechanical stuff.

My temps on OCCT are going to 50°C maximum. I have two fans on my CPU heatsink, one blowing in and one blowing out, so my VRM are hidden by the fan, plus the fan that is blowing air out of my case.

Actually my case is opened because my Mugen 2 rev.b is to high, so I think it has a great effect on temps smile.gif
post #5679 of 12377
Quote:
Originally Posted by Hellsrage View Post

Welcome to hell. To sum it up the UD3 board cannot handle an FX-8350 if you can take it back and buy a different board I fully recommend doing so, I know that may not sound appealing but trust me a lot of us have this board paired with an FX-8350 and have had a mound of issues with it, it's just a crappy board. The fact it has so many positive reviews astounds me.

There are no solutions for the double boot it's an extreme annoyance but you can't do much about it besides not overclocking.


honestly i have no idea where this is coming from. The ud3 does just fine running the 8XXX series chips. Well at least rev 1.0, and 1.1. So i believe it to be a rev 3.0 isssue.

Maybe I'm lucky but i'm running a 8320 @ 5ghz on my ud3 rev 1.0
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post #5680 of 12377
Quote:
Originally Posted by ebduncan View Post

honestly i have no idea where this is coming from. The ud3 does just fine running the 8XXX series chips. Well at least rev 1.0, and 1.1. So i believe it to be a rev 3.0 isssue.

Maybe I'm lucky but i'm running a 8320 @ 5ghz on my ud3 rev 1.0

You must be or you have very good cooling, I've heard from others on different forums that these issues have been reported on all revisions.
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