Msi Platinum X58 sli Memory Voltage Problem

Chainspike

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Oct 22, 2009
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Hi,

First off my spec's.
I7 920 (just normal clock and voltage 1.160).
OCZ 6 gig (3x2gig) 8-8-8-24 1.65v Gold DDR3 1600. 
Dual 260 gtx's 55nm Msi.
Windows 7 64 bit
Corsair 850watt psu
Bios version 3.6

Now my problem:  I can't get the motherboard to run the memory at 8-8-8-24 with 1.65v.  My system becomes very unstable and crashes!!  Even if I leave the timings at "auto" and push voltage to 1.65 v it crashes.  I would Like to say that this boards bios settings are shi*.  It doesnt show current value!!  What mobo does that?  Anywayz I looked at OC center to see what my mem voltage was at on auto.  It told me 1.8v!! at 1600!!  Funny thing is sytem is stable at that setting!!  I ran prime 95  for over an hour!!  When I try to bump the voltage to where suppose to be (1.65) it goes ape shi* and restarts every two seconds. I ran all 3 sticks in mem test through ms-dos and all 3 sticks are ok (no errors).  I'm out of options soo 1.8V i know is WAYYYY to high and i dont wanna damage the sticks so i back them down to their stock settings (1066 1.5v) and they run dead stable at that.  Also what the heck is with stupid message in Bios telling me 1.65v may damage the cpu!  :censored:  almost all DDR3 1600 mem is 1.6v+,  I highly doubt they would make a memory at that voltage if it was going to damage your CPU.  Ironically the 1.65 voltage setting is not in "red" but "high performance" setting in the bios.

My tries:
I have tried setting CPU voltage to stock setting away from auto -- no change
I have tried setting memory timings and voltage in bios --- no change
I have tried lower memory voltage to 1.6v since guys OCZ said can run at that also --- no change
I have ran memtest on all 3 sticks in dos mode --- All ok
I have tried bumping QPI voltage up by .090  -- No change
I have tried setting the PLL voltage to 1.8v --- No change
I have tried running sticks at 1066 (since all they are is oc'd 1066) at the rated timings andd 1.5 volts  --- Dead stable


My only other option is a new mobo and i really dont wanna spend the $$ on it since saving for a 5870.  Sooo PLZ if know anything might help post it up and ill give it a shot!!!  But i am not running sticks at 1066 when I paid for 1600 and the board says it supports that!!
 
Hello,

please download this tool:

http://www.tweakers.fr/download/CPU-Tweaker13b3.zip

... and take a screenshot while the tool displays all current memory timings & sub-Timings as well as the SPD-Profiles.

----------------------------

  It doesnt show current value!!  What mobo does that?

I am not aware of any motherboard whose current DRAM Voltage can be read under Windows. 

Anywayz I looked at OC center to see what my mem voltage was at on auto.  It told me 1.8v!!

It is a known software error.  Don't use this tool. It is actually setting your memory voltage to 1.8V.  Keep it out of the equation.

-------------------------

You have to keep in mind the following things:

- the memory controller is part of the processor, not the mainboard
- the memory controller of the Intel Core i7 processors natively supports only DDR3-800 and DDR3-1066 memory speeds.  Everything beyond that (especially DDR3-1600 means overclocking the memory controller which does not necessarely result in a stable system)
- The rating for your Corsair Modules (DDR3-1600 @8-8-8-24 @1.65) is actually an overclocking rating that does not represent the native specifications for your modules.
- the three aspects I just mentioned have nothing to do with the board per se.  There are many people experiencing stability problems when trying to operate memory @OC ratings such as DDR3-1600 in conjunction with a memory controller that natively only supports up to DDR3-1066

You should keep these things in mind when you expect instant stable operation with OC settings that make the memory controller AND the modules beyond industry specifications.
 
Yeah... I'm sorry.  I know shouldn't expect anything over standards.  Just pisses me off sometimes when these companies boost about their ddr3 1600 being soo fast and being supported blah blah.. Then you get it home and you find out all the stuff they neglected to mention.  Oh well get use to it.. this being like my 10th comp build.

Also heres screen shot.. I dont know if thats current voltage being displayed or just the performance pack info.
 


Ok theres a better pic of it.  I have every setting on "auto" except mem ratio setting which is at 1600.

Also heres a link to the memory im using
http://www.microcenter.com/single_product_results.phtml?product_id=0301254


--I made your image clickable.
  Click the modify button to see how I did it.
--Mike
 
Have you adjusted the memory voltage to 1.65V (I mean manually in BIOS)?

--------------------

About the timings tables:

- the only JEDEC Compliant SPD Table seems to be the one for 533 MHz [DDR3-1066].  All the others appear to be pretty random.  None of the other frequency values (457 MHz, 380 MHz or 609 MHz) can be achieved on Core i7 Systems without manipulating the base clock speed.

- OCZ has not even found it useful to program a 667 Table with specific timings information (there is also nothing to be seen about 800 MHz (DDR3-1600).  As you can see, the value of the tRFC Value increases with the clock speed, however, there is no info on what would be appropiate to set for DDR3-1333 or DDR3-1600 operation

I suggest, you ask some OCZ Tech. in the OCZ Forum for appropiate timing parameters for their modules.

I would start with trying to get the system stable @DDR3-1333 MHz before jumping to DDR3-1600 because the chance to get that stable is much higher than DDR3-1600 (and the performance difference is actually rather minor).
 
Yes i have, but if i do that.  It won't get past windows login screen with "auto" settings and manual 8-8-8-24 settings.
 
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