Jump to content
Corsair Community

RAM GUY - help needed on Corsair RAM & Asus Striker Extreme mobo


geoffp

Recommended Posts

Hi,

 

RAM GUY was referred to me at this site after I posted the same thread at Whirlpool.net.au however any and all help is greatly appreciated.

 

so

 

After upgrading my system RAM from 2Gig to 4 Gig I have had a ton of problems, with system instability, XP & Vista crashes, etc.

 

As such I spent quite a few hours running some memory tests using Mem86 test from a clean booted cd.

 

This is my first foray into in depth memory testing, parameters, etc.

 

Here is the information I have collected:

 

Motherboard: ASUS Striker Extreme DIMM Bank A1: BLUE DIMM Bank B1: WHITE

DIMM Bank A2: BLUE DIMM Bank B2: WHITE

Voltage to DIMM Banks manually adjusted in BIOS to 2.10V

 

BIOS consistently reported maximum available amount of RAM depending on number of modules inserted.

SLI Memory Mode = Disabled - BIOS reported RAM at 5.5.5.18

SLI Memory Mode = Enabled - BIOS reported RAM at 4.4.4.12

 

Silverstone 850W Power Supply

 

Ram Modules:Corsair CM2X1024-6400C4PRO XMS6404v2.2 4-4-4-12 800MHz TWINX Matched Serial # (37 & 38) & (62 & 63)

 

 

Game test software in XP Pro SP2 is Lock On - Modern Air Combat (Lo-MAC)

Game run with 2 x 8800GTS GPU's in SLI Mode - resolution 1680x1050 - every detail max'ed out using LOMAN.

 

 

Individual testing of each RAM Module (SLI Memory Mode was Disabled) showed the following results:

 

RAM Module Serial# 37 DIMM Banks A1 A2 B1 - Passed / DIMM Bank B2 Failed

RAM Module Serial# 38 DIMM Banks A1 A2 B1 B2 - Passed

RAM Module Serial# 62 DIMM Banks A1 A2 B1 B2 - Passed

RAM Module Serial# 63 DIMM Banks A1 A2 B1 B2 - Passed

 

RAM Module Serial# 37 consistently failed ONLY on DIMM Bank B2 (furthest from the CPU).

 

RAM Testing Results Table

 

Conclusions:

RAM Module Serial# 37 may possibly be faulty.

Test 2B indicated multiple RAM address failures in Mem86 testing.

Test 3A & 3B indicated available RAM at 2.75Gb with 3 x 1Gb modules inserted and reported in BIOS.

Test 2A indicated available RAM at 2.75Gb (sames as test 3A & 3B) even though 4 x 1Gb modules were inserted and reported in BIOS.

 

Questions:

Why is the no increase in Available RAM when adding another 1Gb module?

Do i have sufficient voltage made available to the DIMM banks?

Re tests 2A & 2B, why does enabling the SLI Memory Mode induce errors in mem86 test causing xp & vista to crash? I would have thought that enabling SLI Memory Mode which indicates the RAM is running at 4.4.4.12 would be a good thing. That is the RAM module latency (think I got the terminology right there) - it SHOULD work properly.

Are there other settings in BIOS I need to adjust to settle the motherboard down, or is this all caused by a possibly faulty stick of RAM?

 

I really need some help here as I am unsure at to whether I return the RAM or the problem is in the motherboard maybe with the BIOS, etc.

 

Thanks in advance,

 

Geoff.

Link to comment
Share on other sites

  • Corsair Employees
Please try and set the memory frequency manually to DDR667 at 2.1 Volts and I would leave the timings set to By SPD and with 4 modules I am sorry but you might not be able to run at DDR2 800 because of loading on the memory controller.
Link to comment
Share on other sites

Thanks for the quick response RAM GUY.

 

I have posted in the ASUS forums asking for help in how to change the BIOS settings (I'm a bit of a newb in regard to memory parameters, BIOS changes for memory, etc - but I'm learning :) ).

 

What is the advantages/disadvantages running at the reduced speed of DDR667?

 

I am currently running 3 modules with SLI Memory Mode enabled providing 2.75Gb available RAM in Vista/XP. By doing so I am not running in matched pairs on the mobo.

 

If I could run successfully all 4 modules in matched pairs and Vista/XP still only show 2.75Gb (which it does), do I get a speed benefit from having both matched pairs installed as opposed to only having 3 modules installed?

 

My test results showed that RAM Module# 37 consistently failed on memtest #6 in DIMM Bank 2B. All other modules were fine in that DIMM Bank. Does this indicate that RAM Module# 37 is faulty?

Link to comment
Share on other sites

  • Corsair Employees
What is the advantages/disadvantages running at the reduced speed of DDR667?

A: I have answered these questions so many times please search for them for more details and I think It will be more clear.

I have not seen to many MB's if any that will run 4 modules at DDR800 because of loading on the memory controller. This is normal to have to slow the memory down so the memory controller can access all of the memory.

 

I am currently running 3 modules with SLI Memory Mode enabled providing 2.75Gb available RAM in Vista/XP. By doing so I am not running in matched pairs on the mobo.

 

A: There is a setting to re-map the memory over 4.0 Gig in your Bios please consult your user manual to set the Bios properly to see all 4 Gig.

Then you have to have a Operating system able to see over 32-Bit IE 64-Bit to see the full size.

Some links to other posts that are related:

Twinx-2048-3200c2 - 3.25gb

BIOS sees 4GB, Windows sees 2.96!

My test results showed that RAM Module# 37 consistently failed on memtest #6 in DIMM Bank 2B. All other modules were fine in that DIMM Bank. Does this indicate that RAM Module# 37 is faulty?

A: Please test this module by it self at the tested setting with http://www.memtest.org to be sure. With Legacy USB Disabled.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...