Lenovo T 430 Ram updates

Is there a way to allow more than 8 gigs to show up if I install 16 gig chip or dim and already have updated the bios. On new models I have put in a 16 gig chip and it showed up. I was told by updating the Bios this would allow me to install the chip on older laptops. I can only see a total of 8 and would like to install more. There is a 16 gig chip and an 8 gig chip installed now and 8 is all it will recognize. I am hoping Lenovo did not just put limits on the laptop but at the time they only had 8 gig chips as the highest ram and the speed is 12800S PC3 which is what came with it but just not the same size. it came with 4 gigs. This is windows 7 enterprise that is running on the laptop now.
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Dennis MillerAsked:
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Dennis MillerAuthor Commented:
I also know that when Lenovo built that model laptop 8 gigs were the highest you could buy but they now make a 16 gig dim.
I have used both banks so I know 1 is an 8 gig and the other is 16 but both banks are full. That should not be the issue unless they require matching banks? Not sure. That is why I am on this site.
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dbruntonCommented:
If you only see 8 Gb then there are two possible reasons.  Either one of the chips is faulty or one of the chips is not seating properly in the socket.

Lenovo only specifies 16 Gb RAM, 2 x 8 Gb chips.  They don't specify more than that.  Now they could have built in future protection for larger chips but most likely they didn't so I'd say that 16 Gb is the largest amount the laptop can use.

I'd suggest taking out both chips and trying them one by one and seeing if the laptop will recognize each one.
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rindiCommented:
It isn't just the above possibilities. More likely it is because your BIOS doesn't support those chips, or the chipset doesn't. Many chipsets have limits on the size of the RAM you can use. Often you can also only use certain products.

It usually would be best if you take your PC to the PC shop around the corner then ask the seller whether you can try the different modules they have. If your BIOS is the newest and none of them work, you have either hit the chipset limits, or your BIOS just doesn't support it.
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Dennis MillerAuthor Commented:
Thanks and this is exactly what I wanted to know. Great help. Thanks again.
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Dennis MillerAuthor Commented:
Sorry Rindi, I did not see the answer you had sent in. That also makes sense. I did update the bios and chipset first. Now not sure about how to get you the points as I closed it before I saw what you said. I am more than willing to spit the points as both answer are valid?
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Dennis MillerAuthor Commented:
Go for it Rindi. You both deserve the points. This has opened questions here as to put the 16 gig chip on the bottom and remove the 8 gig on top and see if it sees the 16. I am going to try this tomorrow. 16 in the internal under the keyboard should at least see the 16 gigs unless they require you to fill both banks to make 16? I will be going in tomorrow to see. Please give yourself and DBRUNTON both 250. You both have done well and actually got us talking here.
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Dennis MillerAuthor Commented:
Thanks for distributing the points and yes you can close it out. Thanks again for you both giving me a great answer. I do not want to rip off anyone especially after you give great answers.
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Dennis MillerAuthor Commented:
Both comments are best so it is hard to say one is best and not the other. They both are excellent answers and both can make the difference. Thanks all.
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