X61T x64 OS: 6 or 8GB Max? DDR2 SODIMM 2x4GB Compatibles?

[crashnburn]

X61T x64 OS: 6 or 8GB Max? DDR2 SODIMM 2x4GB Compatibles?

4GB 200-Pin DDR2 SO-DIMM DDR2 800 (PC2 6400)

DDR2 SO-DIMM 4GB - Backward & Forward Compatible Frequencies

I have X61T & T61 shown below. Will these DDR2 SO-DIMMs work in them?

Where can I find the best prices/ deals for these?

[ZaZ]

They should work, but will downclock. I usually find the best deals for memory used on ebay if you can wait it out for the right one. I picked up a 1gb stick for my X220i for like $6 on ebay.

[grunger106]

Does the X61 support 4Gb modules? I'm not sure it does?

[RealBlackStuff]

yup

[crashnburn]

So whats the lowest and highest frequency rated SO-DIMMs DDR2 XXX PC-YYYY
that would work in my T61 and X61T?

[rumbero]

4GB 200-Pin DDR2 SO-DIMM DDR2 800 (PC2 6400)
[...]I have X61T & T61 shown below. Will these DDR2 SO-DIMMs work in them?

Yes, they will work just fine both in your T61 and X61.

After having resolved the very same doubts, my T61 has 2x4GB modules (Hynix Part# HMP351S6AFR8C-S6) running since beginning of the year, and it simply works.
Bought them at German eBay auction cgi.ebay.de/350304272568, which is still ongoing. Has some nice pictures too.

[RealBlackStuff]

PC2-4200/5300/6400 will all work.

[crashnburn]

Any ideas where I could find a good priced 2 x 4GB DDR2 ? cause DDR3 is now so much cheaper than DDR2.

[crashnburn]

X61T - 8GB or 6GB Max on 64 bit OS?

I think some people are using 8GB.

Why does PC Wizard 2012 show the following info:

Code: Select all

 General Information :	 
DIMM Slot 1 (RAS 0, RAS 1) :	2048 (Double Bank) 
DIMM Slot 2 (RAS 2, RAS 3) :	2048 (Double Bank) 

 Memory Controller Information :	 
Memory Controller :	DIMM, SDRAM 
Number of connectors :	2 
Max. Module Size :	3072MB 
Max. Memory Size :	6144MB 
Supported Speed :	Unspecified 
Supported Voltages :	2.9v 
Error Detection Method :	No 
Error Correction Capability :	None 
Current/Supported Interleave :	1-way/1-way 

Code: Select all

Memory Information :	 
Type :	DDR2-SDRAM PC2-5300 
Frequency :	332.7MHz 
DRAM/FSB Ratio :	5/3 
Supported Channels :	Dual 
ECC Diagnostic :	Yes   -   Disabled 
CAS Latency (tCL) :	5 clocks 
RAS to CAS (tRCD) :	5 clocks 
RAS Precharge (tRP) :	5 clocks 
Cycle Time (tRAS) :	15 clocks 

[Allstar]

Hey,

Just a quick question about RAM. Does X61s memory chip support only frequency's of 667MHz? I have 800MHz modules installed, but they aren't running at their original speed.

Thanks for reply.

[RealBlackStuff]

The X61/X61t RAM runs at 667 MHz (DDR2 / PC2-5300).
Faster 800 MHz RAM will also work, but only at 667 MHz.

[crashnburn]

To follow up on this thread. I got a pair of Kingston DIMMs from China through a friend from Taobao. Decent price lower than US.
Been using it for more than 6 months now.