Memory Help

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Shanya · #1 Post by **Shanya** » Sun Jun 19, 2005 11:21 am

Guys i just purchased my T43 Model 1872-A13

cause the memory is 512mb ram i just wanted to know if the other half was a built in 256ram .

#2 Post by **K. Eng** » Sun Jun 19, 2005 11:51 am

I'm not sure I understand your question.

As far as I know most ThinkPads are shipped with 1 free memory slot. You can open the bottom RAM slot to see if it is occupied.

Navck · #3 Post by **Navck** » Sun Jun 19, 2005 12:01 pm

He means
"Does my Thinkpad use 2x256mb sticks or 1x512mb stick, because I want to upgradE"
I think...

bhtooefr · #4 Post by **bhtooefr** » Sun Jun 19, 2005 12:10 pm

Actually, I think he means: "Is it 1x512, or 1x256 plus 256 on the motherboard?"

sugo · #5 Post by **sugo** » Sun Jun 19, 2005 12:37 pm

Shanya wrote:cause the memory is 512mb ram i just wanted to know if the other half was a built in 256ram .

There is no RAM hard soldered on the motherboard for T4x. As pointed out, if it's factory config then most likely it's a 1x512MB module occuping one of the two RAM slots.

felipeudel · #6 Post by **felipeudel** » Sun Jun 19, 2005 12:39 pm

Hi on the same question, on my T43, would I loose any kind of performance by having a 256MB factory (IBM) and a 1GB chip from crucial? Somepeople say the different combination of manufacturer and size affects the dual channel performance!

Thanks for the reply.

Navck · #7 Post by **Navck** » Sun Jun 19, 2005 12:40 pm

Laptops don't really take advantage of dual channeling
Two different memory modules from different manufactures of different size = Not work
Dual channeling = Matching twin pairs.

Shanya · #8 Post by **Shanya** » Sun Jun 19, 2005 12:44 pm

sry for not giving the detailed information anyway i only have 1 memory slot and that sucks cause i was told that the memory stick i had is 256 ram and the other half was a built in. so i just wanted to clarify.

felipeudel · #9 Post by **felipeudel** » Sun Jun 19, 2005 12:45 pm

Shouldn't this be a mother board question and since the 915 board with the dedicated video card supports the dual channeling, why the laptop itself not?

Also, sorry but I did not understand your conclusion after stating that laptios don't support dual channeling:

"Two different memory modules from different manufactures of different size = Not work
Dual channeling = Matching twin pairs"

Could you clarify the statement above? Thanks for your time and attention!

Navck · #10 Post by **Navck** » Sun Jun 19, 2005 12:49 pm

Ok
Dual Channeling - You want to buy two memory modules EXACTLY SAME specification wise. (Speed/timing/size)
Anything DIFFERENT from that will not dual channel

Scorpiontico · #11 Post by **Scorpiontico** » Tue Jun 21, 2005 11:41 pm

Navck wrote:Ok
Dual Channeling - You want to buy two memory modules EXACTLY SAME specification wise. (Speed/timing/size)
Anything DIFFERENT from that will not dual channel

how could i check if im currently using dual-channel ram (i have 1gb), or if it is possible to enable the feature?

thanks.

Scorpiontico · #12 Post by **Scorpiontico** » Wed Jun 22, 2005 9:07 pm

anybody please!

Navck · #13 Post by **Navck** » Wed Jun 22, 2005 9:49 pm

Open the bottom expansion slot for your ram and check if theres a module there

Scorpiontico · #14 Post by **Scorpiontico** » Wed Jun 22, 2005 10:19 pm

Navck wrote:Open the bottom expansion slot for your ram and check if theres a module there

the 266872u comes with a 512mb stick plus another 512mb (=1gb) i got for free from ibm.

thanks

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