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Case Number 808228 Stuck


jesselfout

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I had TWIN2X2048-6400C4 recently bought TWIN2X2048-6400C4DHX, the TWIN2X2048-6400C4 works great at 4-4-4-12 T2 2.1v @ 800MHZ ,

been stable for a little over three years. So I got the TWIN2X2048-6400C4DHX since I thought itwas the same

RAM just had the heat sinks added.

 

All 4 Sticks or both originals and one new:

BSOD STOP 0x0000000A (parameter1, parameter2, parameter3, parameter4) IRQL_NOT_LESS_OR_EQUAL or it just reboots.

 

Just DHX:

If I just put the DHX memory in it will boot up but then randomly crashed and "dumps physical memory"

 

I've also ran 5 hr plus tests on the both sets of sticks, together and individually, DHX only gives errors when both sticks are installed.

 

 

 

 

I've tried XP-32 and W7-64 with similar results.

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The only memory Corsair supports in a four DRAM slot population is their Quad kits. This does not mean two dual kits or even worse two dual kits of different versions will not work together, just that you have no recourse to RMA Corsair if they do not work together. If there are problems with the DRAM modules, they are still supported via lifetime warranty, but that is for physical defects and errors in a two stick kit mode. Matched Quad sets are highly binned modules for a four slot population. The Dual sets are tested as a kit, not a Quad and warranted as a dual kit, not a Quad setup. You need to Memtest them as Kits (2 modules, not as a four DRAM slot population). If they fail as a kit or singly, then you have RMA. Keep in mind that there is no support for mixing and matching different versions of DRAM either since different version are of different fabrications and/or manufacturers. They might work, they might not work, but you have no support if they do not work. Thus you are advised to buy all the DRAM at the same time and in this way be more assured of getting the same versions. If you buy online, be sure to specify same versions of the modules.

 

You are advised to drop the bandwidth to 333Mhz and raise the NB Voltage +.2v. As well, you must drop your Memory Command Rate from 1T to 2T when populating all four DRAM slots.

 

Please research this thread:

 

http://www.houseofhelp.com/v3/showthread.php?t=64360&highlight=Unpredictable+results+QUAD2X4096+Gigabyte+X38-DS5

 

There is a limitation of the On Motherboard (Intel) memory controller or On CPU (AMD) and a population of all four banks at the full speed of a two bank run. This limitation is across the board with both AMD and Intel chipset based boards, DDR, DDR2 and DDR3.

 

Keep in mind that often issues can arise in the longer term even though you have shorter term stability. The issues seldom damage the DRAM unless you raise the DRAM voltage too high. They damage the on CPU (AMD) memory controller which has a harder time keeping up with the demands of a four DRAM slot population being run as fast as a two DRAM slot population.

Set to these values:

 

AI Tuning = Manual
Nvidia GPU Ex = Disabled
LinkBoost = Disabled

Extreme Tweaker Screen

FSB & Memory Config[/b][indent]FSB - Memory Clock Mode = Unlinked
FSB (QDR), MHz = 266 (1066)
MEM (DDR), MHz = 400 (667)

CPU Configuration
CPU Multi = 9
CPU Internal Thermal Control = Enabled
Limit CPUID MaxVal = Disabled
Enhanced C1 (C1E) = Disabled 
Execute Disable Bit = Enabled
Virtualization Technology = Enabled
Enhance Intel Speedstep Tech = Disabled

Chipset

Memory Timing Setting
tCL = 5
tRCD = 5
tRP = 5
tRAS = 15
Command Per Clock = 2 clocks

Advanced Memory Settings

tRRD = Auto
tRC = Auto
tWR = Auto
tWTR = Auto
tREF = Auto
tRD = Auto
tRFC = 60  
Async Latency = Auto

Voltages
Vcore  = Auto
Vdimm (DRAM Voltage)  = 2.1v
1.2v HT = 1.2v
NB Vcore = 1.45v
SB Vcore = 1.55v
CPU VTT = 1.35v

 

Shut the system down. Boot to the Memtest CD and allow for two full passes. S When assured of stable DRAM, then enter Windows and Run CPU-z and post screenshots of CPU-z's CPU, Memory and SPD tabs.

 

Results?

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Great, well that explains it, the DRAM DHX modules need to be RMAed. When using both sticks (2 total) they produced many errors (let it run for 5 passes) in memtest.org.

 

Using my original ram (non-DHX) i get clean and stable all the time (10+ passes left running at night) so I'll forward this thread to the RMA folks and hopefully they will send me new RAM that I could at least resell at a loss.

 

Thanks for the help I never would have thought that the same spec RAM wouldn't be compatible, that's a new one for me. I'll take that nugget

for the next time I think about upgrading.

 

 

Jesse

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I would test the modules singly and at 800Mhz.

 

Great, well that explains it, the DRAM DHX modules need to be RMAed. When using both sticks (2 total) they produced many errors (let it run for 5 passes) in memtest.org.

 

Using my original ram (non-DHX) i get clean and stable all the time (10+ passes left running at night) so I'll forward this thread to the RMA folks and hopefully they will send me new RAM that I could at least resell at a loss.

 

Thanks for the help I never would have thought that the same spec RAM wouldn't be compatible, that's a new one for me. I'll take that nugget

for the next time I think about upgrading.

 

 

Jesse

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NEW

  1. Tried dhx stick A slot A1 5+ passes no errors.
  2. Tried dhx stick B slot A1 5+ passes no errors.
  3. Tried dhx stick A slot B1 5+ passes no errors.
  4. Tried dhx stick B slot B1 5+ passes no errors.
  5. Tried dhx sticks A & B slot A1 & A2 1st pass hundreds of errors.

 

ORIGINAL

  • Tried stick A slot A1 5+ passes no errors.
  • Tried stick B slot A1 5+ passes no errors.
  • Tried stick A slot B1 5+ passes no errors.
  • Tried stick B slot B1 5+ passes no errors.
  • Tried sticks A & B slot A1 & A2 5+ passes no errors

 

What say ye? Bad NEW RAM?

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  • Corsair Employees
I've also ran 5 hr plus tests on the both sets of sticks, together and individually, DHX only gives errors when both sticks are installed.

 

This makes me suspect something other than a memory issue at this time. Do you have the most recent BIOS installed?

 

Did you try fully clearing the CMOS and resetting the timings and voltage manually before running Memtest? Also, just for testing purposes and if you have not already, disable Legacy USB Support when using Memtest on ASUS MOBOs.

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Yes, I manually set the timings, to 4-4-4-12 T2 @2.1v.

 

I will disable legacy USB.

 

Just to make sure I'm clear:

 

I tested each DHX modules individually with no memtest.org errors, but XP was BSODing. When I put both DHX modules in I started getting errors in memtest.org, and BSODs.

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This makes me suspect something other than a memory issue at this time. Do you have the most recent BIOS installed?

 

Did you try fully clearing the CMOS and resetting the timings and voltage manually before running Memtest? Also, just for testing purposes and if you have not already, disable Legacy USB Support when using Memtest on ASUS MOBOs.

 

There is one more update that I haven't installed, so I'll try that next.

 

I did reset all the settings to their defaults saved, then set the timings/voltage saved, then ran memtest.

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I tested each DHX modules individually with no memtest.org errors, but XP was BSODing. When I put both DHX modules in I started getting errors in memtest.org, and BSODs.

This makes me think memory controller issue but, it is odd that the other set works which is why I suggested a BIOS update.

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Flashed BIOS to latest.

 

Boots into windows ok now with DHX Ram modules only.

Boots into windows ok now with original Ram modules only.

 

Still doesn't work with all four modules just reboots when windows starts to load.

 

Testing both DHX modules now with 4-4-4-12 ,@2.1 volts, 67% complete first pass no errors.

 

I think you were right RAM GUY, BIOS worked, but no love with all four modules, DerekT was right.

 

If you don't hear from me again consider it solved I guess.

 

Jesse

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