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Overclocking, Benching, Events, Tweaking & Modding => Overclocking motherboards with AMD processors => Topic started by: Nihth on December 29, 2012, 08:06:33 pm

Title: GA-990FXA-UD5 memory errors
Post by: Nihth on December 29, 2012, 08:06:33 pm
Hi,

I have recently bought a new MB, RAM and CPU for my computer and put it together.

MB: GA-990FXA-UD5 Rev 1.0
RAM: Corsair CMZ32GX3M4X1866C10 4x8 sticks at 1866MHz
http://www.corsair.com/us/memory-by-product-family/vengeance/vengeance-32gb-quad-channel-ddr3-memory-kit-cmz32gx3m4x1866c10.html (http://www.corsair.com/us/memory-by-product-family/vengeance/vengeance-32gb-quad-channel-ddr3-memory-kit-cmz32gx3m4x1866c10.html)
CPU: AMD FX 8350 8 core 4GHz

Since the AMD memory controller doesent support 1866MHz with 4 sticks I need it to run at 1600MHz

When I try to run everything on default settings in BIOS I get memory errors and BSOD in Windows, it defaults to 1333MHz.
I tried to clock it up to 1600MHz and the settings 9-9-9-24, then the MB sets the voltage to 1.6 but I still get the memory errors.

I have done a memtest of all the sticks one at the time and all of them get errors. The computer runs fine with another set of RAM sticks I got (CMZ16GX3M4A1600C9)

This is where I have got help to get this far: http://forum.corsair.com/v3/showthread.php?p=622356#post622356 (http://forum.corsair.com/v3/showthread.php?p=622356#post622356)

Edit: My goal is to either run at 1600MHz or 1333MHz, it doesent matter that much as long as its stable.
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 29, 2012, 09:10:19 pm
Hi there,

You don't say which bios version you are running but this is the first thing I would check and update to the latest version. Use the qfllash utility not @bios for this as it is often safer.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 29, 2012, 09:15:35 pm
Hey,

I did run @BIOS yesturday not sure where to check the version but could it be called F11?

Edit: Got some help from peanutz94 over at the Corsair forum http://forum.corsair.com/v3/showthread.php?p=622379#post622379
and it seems like its either broken BIOS or the MB itself, since it works with 4x4GB sticks but none of the 8GB sticks will work. But Im not sure, Im not that into the tweaking and clocking part. What do you think?
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 09:18:36 am
There have been several posts now about 8Gb Corsair sticks causing problems on various motherboards so it could well be a BIOS issue.

The best thing to do is to contact Gigabyte Technical Support here: http://www.gigabyte.com/support-downloads/technical-support.aspx and see if they are aware of an issue.

In the meantime, if I were in your position, I would do the following:
Reflash the BIOS using the QFlash utility and make sure you disable the Keep DMI Data option on the QFlash homescreen before running the update.
If you are not sure how to flash the BIOS using QFlash check here: http://forum.giga-byte.co.uk/index.php/topic,2441.0.html
When the BIOS flash has completed Power down the PC DO NOT let it restart.
Swap the RAM and insert two of the 8Gb sticks.
Restart the PC and, if it lets you, go into BIOS and load Optimized Defaults - If you can get to this stage then you should be able to continue as normal which would be restart the PC, go back into BIOS to make changes to SATA controller and other items as required, restart and done. Note the RAM may default to 1333MHz but at this stage, if it is working I wouldn't worry too much as we can get around to tweaking it later on.

If The PC doesn't start with the 8Gb sticks, power down and swap back to original memory.
Start up and go into BIOS and load Optimized Defaults and follow the same process as previously mentioned.
If this is the situation that you are faced with, then you will probably have to wait for Technical support to progress further with the 8Gb modules.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 01:56:42 pm
Sweet we might be on to something here.

I used the Qflash to upgrade the BIOS while using the 4GB sticks, then when it powered off changed to two of the 8GB sticks and placed them in the 1 and 3 slot. Then went in to BIOS and hit the load optimized defaults.

I tested the two sticks in Memtest now and let it run for only 5 minutes, but I only got 1 error! Unlike the other times I tested individual sticks and got several errors within seconds.

Could it be that one of the 2 sticks I use now are broken and the BIOS/MB problem is now fixed?
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 06:02:55 pm
I tested the 8GB sticks 1 by 1 now in memtest and two failed within a few seconds while one failed around 9 minutes and the last one around 15min.

So is the MB broken? Or anyone got any more tips or tricks? :D
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 06:08:19 pm
What speed did you test the RAM at? 

Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 06:19:59 pm
In BIOS it was set to default 1333MHz and I dident do any changes in Memtest.
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 06:30:59 pm
OK. do you know how to tweak RAM voltage settings in BIOS?
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 06:35:35 pm
Yea I know how to increase the RAM voltage, but not like 100% sure what everything is/does.

Btw I just noticed that in Memtest the 4GB sticks gets tested at 800MHz DDR1600 CAS 1-3-3-3
While the 8GB sticks gets tested at 200MHz DDR400 CAS 1-3-3-3 does this matter?
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 06:47:31 pm
To be honest I have never tested 8GB sticks of RAM so I am not sure how Memtest works with them.  :-\

I would suggest tweaking the RAM Voltage a little higher to see if that helps with stability. Sorry, but there are no exact figures I can give you for this and it will be a case of up the Voltage a little, test, increase a little more if still unstable. I would probably try 1.51V (or nearest setting) first and gradually increase if the system is still unstable, but I wouldn't go above 1.65V

Also, before you increase the RAM Voltage, check the default timings for the RAM, at 1333MHz it should be 9,9,9,24, 2T. If they are set to these and you are concerned over increasing the Voltage you could try slackening them off a little, say 10,10,10,27 and see if that helps.

Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 06:53:37 pm
Okey, I did some tweaking while being helped in the Corsairs forum and then I used these settings:
1600MHz 9-9-9-24 2T and 1.6V do you think that would work?
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 06:59:39 pm
If that has been recommended by Corsair Forum then it is a good place to start.

If system is still unstable then back off the timings a little or lower the speed to 1333 MHz as I feel that stability is more important than speed at this stage.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 07:13:05 pm
They dident recomend it but those are the SPD settings. I will test them and also see if I can make memtest do a matching test.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 07:39:13 pm
Okey did these tests:

1600MHz 1.6V 9-9-9-24 unstable
1600MHz 1.6V 10-10-10-25 unstable
1333MHz auto voltage 10-10-10-25 unstable

The 1333MHz setting is somewhat stable, lets me do stuff in Windows but things like Catalyst Controll Center and Windows Gadgets keeps crashing.

And btw: regardless of what I set in BIOS, CPUZ tells me my timings are 4-5-5-15 for some reason (got the latest version)
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 08:08:14 pm
What Voltage have you set for these tests?

Have you tried 1333 MHz at 10,10,10,27 with Voltage at 1.5V?
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 08:24:30 pm
For the other tests I did 1.6V at 1600MHz and 1.5V at 1333MHz

I just tried the 1333 MHz at 10,10,10,27 with Voltage at 1.5V and it dident work.

The reason why memtest is running at 200 MHz DDR400 is that it cannot detect the SPD values due to some SMBUS or something.
Title: Re: GA-990FXA-UD5 memory errors
Post by: absic on December 30, 2012, 08:48:02 pm
Well, as the things you have tried don't seem to be helping, all I can think of now, is waiting to see what help/advice Gigabyte Tech Support can give.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 08:53:33 pm
Okey, I will contact them.

Thanks for your help!
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nihth on December 30, 2012, 09:17:50 pm
I filled in a form at Gigabyte, but they wont open before 2nd Jan, will see what happens then. Thanks again!
Title: Re: GA-990FXA-UD5 memory errors
Post by: JasonPW on January 08, 2013, 10:47:28 am
I just received a RMA'd rev 1.0 GA-990FXA-UD5 from Gigabyte.  The symptoms I was getting were:

PC 100% stable AMD 1100T over clocked to 3.8Ghz. 4xPC1600 DDR3 16GB.

Upgraded CPU to AMD 8350.  Memory errors, freezes, failed memtest, frozen memtest, unable to run at PC1333 speeds reliably. Tried new memory (2x8GB from Crucial and Corsair) same issue.  Finally got it stable by disabling turbo core and manually setting voltage higher to compensate for vdroop and memory at 1600.  I was convinced it is a vdroop issue on the rev 1.0 so I got hold of a rev 1.1 version of the board with LLC control in BIOS and it ran all previously failing memory at 1866 speeds and the 8350 over clocked to 4.6Ghz (Turbo disabled).

Now I haven't tested this returned board (Staying with my 1.1) which is my original rev 1.0 (Checked S/N).  But I can see it has had a resistor changed near the voltage controller next to the CPU socket.  I know there was a DIY fix (If your good at soldering and have very good eyesight) that replaced a resistor on the UD7 which disabled vdroop on it's rev 1.0 so I suspect they have simply replaced the same resistor on the controller to do the same here.

I recommend RMA'ing it if it's under manufacturers warranty to get this rework.  If not the rev 1.1 sorted it here.
Title: Re: GA-990FXA-UD5 memory errors
Post by: Beetle on January 09, 2013, 02:39:45 pm
I have also a GA-990FXA-UD5 but rev. 1.1 and I also have problems with 8GB DIMMs (Corsair Dominator Platinum 8GBx2 CMD16GX3M2A1866C9).
 I have run the memory both in 1333 & 1866 with both 1.50v and 1.65v but memtest86+ finds error. The memory works in GA-F2A85X-UP4.

The answer I got from Gigabytes support was:
Well, since the DIMMs are not officially supported on this motherboard that might be the case why they aren't working in your system.
Even if you try to use them in lower clockspeed and different voltages it does not necesarly make them compatible, since the DIMMs are factory clocked.
Title: Re: GA-990FXA-UD5 memory errors
Post by: JasonPW on January 09, 2013, 07:13:15 pm
I'm still sure I had to adjust the LLC calibration setting for my 8350 CPU to get the memory stable even on my rev 1.1 at default clocks.  At 4.6Ghz I defiantly have (I cannot remember settings off the top of my head)

The problem on the rev1.0 I was chasing memory errors where none existed.  The memory went from working with the AMD 1100T CPU to not working with the 8350.  I think the symptoms I was getting was because the CPU was under volted too much by default on the rev 1.0 (vdroop) with the 8350 CPU and as the memory controller is within the CPU I could get memory errors or freezes.  I changed the CPU back to the 1100T and the problems went away.  I RMA'd the 8350 and the same fault recurred with the new one.  The only thing left to try was the main board and the rev1.1 was the fix for me. (The modified rev 1.0 has vdroop disabled so in theory should be OK as a well)

For Reference I am now running GEIL 8GBx2 DDR3 at 1866 dual channel with no problems. 9-9-9-24 1T at 1.60V
Title: Re: GA-990FXA-UD5 memory errors
Post by: Marco76 on March 26, 2013, 04:56:18 pm
Hi all!

I'm having the exact same problem as Nihth....

2x8GB Kit Venegance LP Corsair DDR3...

Memtest86+ test # 6 errors....

Tryed hundreds of combinations in BIOS settings with no result...

Can someone help??

Thanks

Marco
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nazra7 on July 31, 2013, 12:05:00 am
rev 1.1 here and it made it past #6 memtest +86 v4.2 with these settings.  I would love to see someone test these further since I want to game tonight!

(http://img.photobucket.com/albums/v624/nazrat/timings.jpg)

4.2ghz on an 8120fx all garbage c1e ect turned off including turbo.

1.56v to ram this might be too much
.25 to cpu
.75 to cpu-nb

9.33x  1866 w/ 2/4 sticks installed (I split the kit with my nephew to give the controller the stability for OCing)
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nazra7 on August 01, 2013, 02:40:06 am
Nope error'd on test #7... called Corsair Tech got a canned if it doesn't work at 1333 in memtest send it RMA.   SHA as if the new kit would fix it.   So I nope'd that set DOCP to profile 1.  1.055v dram it show'd,  error'd so I tweak'd it a little,  changes:

10-11-10-30  with 160ns(dont think that changes anything) also set the 7's to 8's to loosen em up some.
went to 4.0ghz overclock for testing and passes beyond test #8 in memtest (YAY)
for the 3.0revision boards make sure to set Tfaw at 28!  that did the trick for the nephew's build.

So it looks like voltage is a bad thing in this set.

Obviously something in the XMP fixed the stability enough to find a comfortable spot but I'm not an expert just a push this and see what happens dude.

If someone out there has this setup as well and would like to share please do so...


(I exported the BMP from overdrive if it helps)
Title: Re: GA-990FXA-UD5 memory errors
Post by: Nazra7 on August 02, 2013, 02:46:21 am
Proof well at least one pass...
(http://img.photobucket.com/albums/v624/nazrat/0801131939.jpg)
Title: Re: GA-990FXA-UD5 memory errors
Post by: EvilNucca on October 10, 2013, 07:05:56 am
Had the same issue with same board and same ram contacted corsair after getting errors in memtest86 and windows memory diagnostic the tech at Corsair said the memory should work fine in my board tested all 4 sticks 1 at a time got errors in two took the good sticks  put those in the 1 and 2 slots everything worked perfect RMA to corsair waiting on the new sticks to see if they work with all four. Seems that Corsair has issues with the Vengeance Ram I know of two other incidents where the ram failed or had errors and after getting new ram from corsair everything worked fine. Hopefully I will get decent Ram and it all works fine if not I will Ebay the sticks off and get some samsung Ram 8gb sticks that are a lower speed.