XMP profile issue; system will not boot, or freezes shortly after entering BIOS

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ydoumus

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Hey guys,

I have recently (well, today) upgrade my RAM to a slightly better CL9 one. I have tried to run the XMP profile 1 as my setup should easily handle it. However, the system fails to boot and/or feezes seconds after entering BIOS.

Specs:
CPU: AMD FX 8350 (unlocked)
MOBO: Gigabyte GA-990FXa-ds3p rev. 2
RAM: Kingston HyperX Savage 2x 8GB 1866mHz CL9 (the new ones)
PSU: Corsair TX750W

Other specs are unlikely to matter here.

I assume the system may fail to boot due to the following scenarios:
1. Incorrect voltage, though Kingston notes it should be 1.5V @ XMP1 and it was set this wa
2. Incorrect FSB speed
3. Well, anything else!

The CPU was overclocked from the standard 20x multiplier to 22x, so everything else was pushed up slightly. Could this be the issue? I don't feel like fiddling around in BIOS any further than I already did.

Please help.

KR,
Ydoum.

EDIT: MoBo supports 1866mHz RAM clocks as a standard feature. The previous setup was 2 sticks 4GB of RAM each @ 1866mHz, CL10. Kingston HyperX Fury.
 
Solution
Tradesman1

________________________

Yes 'Try", there are no specifics when setting up DRAM, especially on AMD. If things don't work to spec, one needs to experiment, a mobos programmed settings (in this case per XMP) are a good place to start then can adjust voltages and or timings. I prefer to provide suggestions that I feel will work and go from there rather than just generalities like 'bump up the voltage'. This is one of the prime reasons I've been...
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junkeymonkey

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is XMP supported on that AMD board ?? XMP is a intel feature

https://rog.asus.com/forum/archive/index.php/t-37082.html

even with that you may need to tweak manually to gain stability with AMD

changing out the memory you may need to clear cmos and start the set up fresh try looking at some guides as well just going to that different line of memory may mean they can have different IC's as well

[[FX or A Series CPU]

http://www.gskill.us/forum/showthread.php?t=11742


just that one little change can through the rest off so to me its best to maybe start fresh and reset it all back up
 
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ydoumus

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Yes. Motherboard detected an XMP RAM and immediately provided me with the option to load XMP profiles; 2 of them, to be exact. I managed to get the system to boot fail and reset the changes to regular 1600mHz settings, so I am now running on CL11 instead of 9.

Does the guide you posted mean that the MoBo is not capable of running the automatically provided XMP profiles, and that I need to manually set the timings and voltage?

 
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junkeymonkey

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well its AMD and not so straight forward as intel is on that . a bit more chance is involved overall ..

you know the board works with 1866 cause that's what you had in it to start with , right ?? but then you changed from Savage series to that fury series

that could be a change in the IC's ?? hard to say [another reason why I ditched AMD after 16 years ] my old AM3+ just flat did not like certain memory and was a fight / $$ to get something that did full work as expected ? I guess that's all part of the luck of the draw ? my buddies AM3+ loved all he put in it right off the bat [giga 990fx ud3 rev 3] my asus was a pain ..

now it may eccept the XMP as said above but you got all the rest overclocked as well [CPU]] now the new sticks may need you to redo all that

the oc on your old memory in all may of been good but now with new sticks all that could have changed and now makes the rest a bad oc ?

why I said you may need to reset the bios and build back up all your overclocking to match your new memory ??

can I ask why you changed out the memory to start with seeing you really gained nothing outside of just savages to fury ?? I could see going from 1333 or 1600 to 1866 with tighter timings ???

maybe tradesman1 will pop in here and give some input he's pretty slick on memory
 
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ydoumus

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I was changing from Fury to Savage, as it is a better-performing RAM. Apart from the better timings, I have also upgrade the ram quantity from 2x 4 sticks to 2x 8 GB sticks.

I am running some intensive applications and I do require the better communication between the hardware.

I am hoping that a few more posts will pop, but so far thanks for the answers!
 
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junkeymonkey

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this is another thing I ran in to issue with my AM3+ '' 2x 8 GB sticks '' as well [them same 2x8 sticks work 100% fine in another build ]

one more thing to look at is how well you got the sticks seated in there slots may not be seated well I see this from time to time pull them out and push them back in and be sure there firmly seated in place

i'll leave things as that and see who else pops in to answer on this any 2ed opinions are nice to get
 
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ydoumus

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Sticks are working, as I am now running both of them, but on the stock, non-XMP profile (meaning CL11, 1600mHz).
 
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ydoumus

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System will not boot even with the 1866mHz increase from the stock 1600mHz. Voltage was set to 1.5V as per manufacturer reference. That's odd, because it should still run at 1866mHz due to the fact that mobo supports it.

sadly, they have no guides and a terrible support ticket system. :p
 
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junkeymonkey

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''Voltage was set to 1.5V '' I'd bump that up may and re try as you go up could need up to 1.65 [max]

I'd look over the g-skill forum on there guides lots to maybe lok at that may help ? like I said one of my AM3+ asus would not take 8gb sticks unless they were at default or one stick at speed ?? I guess with AMD its the way it is some times ,,

I really thought tradesman1 would answer here then he would pretty much tell you what you can find at the gskill site on set ups

maybe have to try 4x4 ? with AMD its a roll of the dice and my saying is 'if its AMD its 1333''

http://www.tomshardware.com/forum/306846-30-gigabyte-990fxa-1866-choice

http://www.tomshardware.com/answers/id-2171337/compatible-ram-gigabyte-990fxa-ud3.html

or these
http://www.gskill.us/forum/archive/index.php/t-11871.html

http://www.gskill.us/forum/archive/index.php/t-12437.html

from
http://www.gskill.us/forum/archive/index.php/f-57.html
 
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ydoumus

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What are the risks of OVing the Northbridge? So far I have had successful overclocks on all my parts (CPU +0.6 GHz per core, GPU + 500mHz) without ever altering the voltages, so I am quite a newbie when it comes to voltages. Do you think this should be safe enough to assume that it will not fry the controller?
 
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junkeymonkey

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''Try using the XMP profile, ''

that's what he said he's been doing at first ??? I think is down to luck of the draw on using them 8gb sticks [opinion] lets hope not . as I also said may need to bump up voltage and no should not hurt anything just don't exceed 1.65v [more opinion]

 
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Tradesman1

Tradesman1

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________________________

Yes 'Try", there are no specifics when setting up DRAM, especially on AMD. If things don't work to spec, one needs to experiment, a mobos programmed settings (in this case per XMP) are a good place to start then can adjust voltages and or timings. I prefer to provide suggestions that I feel will work and go from there rather than just generalities like 'bump up the voltage'. This is one of the prime reasons I've been able to help many get their DRAM running. The AMD mobos set timings to what they feel appropriate to what the XMP profile is, which doesn't always match the specs of the sticks, i.e. XMP 2400 with a profile of CL 10 on many AMD mobos will get set to CL11 to help compensate for the weaker MC of AMD vs Intel (and of course XMP is licensed Intel technology (GB mobos used to use their own EOCP timing settings much as Asus uses their DOCP OC timings settings). And it's the MC that is the determining factor, not the mobo. According to AMD's own BIOS and Kernel Programming Guide, the FX CPUs have an MC that is native to 1333 so for higher it can require an OC of the CPU (which is why the higher end AMD FXs are pre OCed) as well as additional voltage to DRAM and/or the MC
 
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