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RAM in X60
Posted: Fri Jan 06, 2006 4:15 am
by domi
I watched the X60 tour and I'm puzzled by the following statement:
"Up to 2 GB of DDR2-667 memory and 3 GB of DDR2 533 MHz memory."
Does this means the X60 comes with 1 GB premounted (DDR2-533) and two additional slots that can take either DDR2-667 or DDR2-533), for a maximum total amount of 3 GB?
Posted: Fri Jan 06, 2006 7:57 am
by RS_003
Thinking the same thing here.. Or they will make 1.5GB chips...
But thats seems a bit odd since there where never 1.5GB chips before.
Posted: Fri Jan 06, 2006 9:55 am
by bhtooefr
I've heard that there's a limitation in the i945 chipset that means that only 3GB can be addressed. Therefore, it'll be 1 1GB module, 1 2GB module.
Posted: Fri Jan 06, 2006 12:29 pm
by RS_003
But have you also heard about a speed difference?
I know that soms old via chipsets could not run @ 400mhz if more then 2 banks where used. But at 333mhz.
What do you think?
Posted: Sat Jan 07, 2006 11:10 pm
by shfawaz
My understanding from the Lenovo Rep at CES 2006 is that the system hardware actually supports up to 4Gb of 667Mhz Ram, but only 3GB is recognized by Windows. So you can actually have two 2Gb dimms for a total of 4Gb of Ram, but only 3Gb of it will be recognized by Windows. Ideally, 1Gb Ram standard, and upgrade with a 2Gb dimm for a total of 3Gb of Ram.
Posted: Sun Jan 08, 2006 3:49 am
by RS_003
But Windows supports up to 4GB as for as I know.
Could be a chipset limitation?
Ah... here is an explenation:
http://bink.nu/forums/8805/ShowPost.aspx
ah.....the ole 4gb maximum Windows memory requirements.
Well, unfortunately...it may have to do with the fact that Windows can only see 4gb of ram period...system ram, and virtual ram. Since you have 4096 of system ram, and your pagefile is on...you've passed the Windows memory limits. Remember, Windows sees the pagefile as system memory.
The only solution you could try to get Windows to see all of your ram, would be to shut off the pagefile.
For those of you using Windows Server 2003, the mem limit: 32 bit - 32Gb...64 bit - 64Gb. Seeing as only a few dual CPU motherboards even come close to this, offering support up to 20Gb of ram....W2003 has no issues with the requirements.
Also take note, that with 4 x 1 gig memory modules, the latency (clock cycle time) is slower than 512mb modules. Your system would perform faster with 4x512mb (2gig), than 4x1gb (4gig).
Posted: Tue Jan 10, 2006 10:14 am
by bhtooefr
Ah, THAT'S what it is, I see... 32-bit mem addressing.
Does Yonah support PAE (Physical Address Extension)? If so, then I'll point to Windows Server 2003 as the correct option.
Of course, none of this would be a problem if Intel had just added AMD64... umm... I mean EM64T support to Yonah... XP Pro x64 would also solve the problem quite nicely
Posted: Thu Jan 12, 2006 4:38 pm
by First Light