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I have 2x XMS2-6400C4 (4x1gb) which mobo to buy?


baumhak

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Hi! it´s my first post. I´m from Brazil!

I have 2x TWIN2X2048-6400C4 - 4GB total memory. (4x1gb)

which mobo to buy?

I wanted to buy P5n-E SLI, but I read that I can have problems, this is correct?

Another mobo to indicate?

 

Sorry my poor english!!

 

thanks!!

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  • Corsair Employees
No that MB should be fine just you might be limited to DDR667 with any MB and four modules installed. And you need to get the Latest BIOS and then load setup defaults and set the memory Voltage to 2.1 Volts and let the MB set the timings and test with http://www.memtest.org with Legacy USB disabled.
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No that MB should be fine just you might be limited to DDR667 with any MB and four modules installed. And you need to get the Latest BIOS and then load setup defaults and set the memory Voltage to 2.1 Volts and let the MB set the timings and test with http://www.memtest.org with Legacy USB disabled.

 

thanks!

Any MB have support 800mhz and four modules of 1gb?

Asus, intel, etc.....

thanks again!

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  • 2 weeks later...

I'm in the process of upgrading cpu/mem/mobo (still waiting for parts) :

 

E6750/one kit TWIN2X2048-6400C4 (v2.1)/Gigabyte GA-P35-DS3R

EDIT /// MAKE IT E6850, coz E6750 was hard to find in stock

 

RamGuy, do you indicate P35 mobos could handle 2 of these kits at rated speeds/timings ?

 

I've also seen you suggest 2.0v for one kit, 2.1v for 2 of these kits ?

 

Lastly, lets say I get a satisfying overclock of 8x437 (3,5GHz) with one kit, what are the chances oc stays stable with two kits (v2.1) ?

 

EDIT ///

9x400 on E6850 with 2 of these 2GB kits would work well ?

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Question about the sticks in general.

 

Browsing oc forums shows early revisions (v1.2 etc) used Micron D9 chips, and my newly bought v2.1 should use some less ocing Promos chips. no problems with that.

 

but, cpuz shows old manufacturing date on my v2.1 kit: week 23, year 06

 

date is wrong ? all labeled 23/06 ?

 

anyways, this first kit worked well with my upgrade, 8x450/3600MHz with 900MHz @ 4-4-4-12. I think I set 0.2v for dimm, but now in bios I can't even select new value anymore (it's stuck at +0.3v with pink colors)

 

So...ordered another kit to make 4GB (should be in rig tomorrow). Installed Vista x64 this time. Do you still think 9x400 with 2 kits equals problems ?

I'm I too optimistic when I wanna run, say 8x425 with 2 kits ?

 

Orthos stable 5 hours and memtest86+ v1.60 90mins until I stopped.

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OK, got both kits inside now, done quick (42min, mostly #8 and #5) memtesting, dual stresstest in Prime95 (32mins custom blend, 2500MB enough ???) and gaming, they seem to work well !

 

At 8x425, ram needed +0.3v/2.1v with all 4 sticks inserted. Atleast the first kit worked well with only +0.2v/2.0v. I didn't have to raise FSB or MCH volts, low vcore, 1.306 in bios, 1.232 at load.

 

One thing I noticed: I have now few % less fps, lower mem bandwidth and higher latency, mem timigs are the same 4-4-4-12 2T...(or maybe I am comparing to the 8x450 numbers, lets hope so :)

 

EDIT ///

 

8x437, 874MHz on mem was also Prime95 stable for 2hours, memtested 60mins on tests #5 and #8. Timings reduced to 4-4-4-15 2T. (Test #8 passed with 4-4-4-12 timings, where #5 gave ONE error during 10-15 mins)

4GB-8x425-1.306vcore-2.1vdimm.thumb.jpg.82820dca1993f2506f6660e94bc805eb.jpg

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