Unsolved
This post is more than 5 years old
6 Posts
0
4588
December 3rd, 2017 07:00
Inspiron 1750 8GB Memory Upgrade Not Working
I have a Dell Inspiron 1750 Laptop with 4GB installed (2 x 2GB) which is working fine. I bought 2 x 4GB DDR2-6400 800MHz SODIMM,, Micron Technology part number MT16HTF51264HZ-800C1. I installed the two memory chips and the laptop doesn't start, only the white light shows on. No fan, no hard drive running. The screen is blank and then after a couple of minutes you hear four beeps every couple of seconds. What's wrong?
I thought the memory that I bought, MT16HTF51264HZ-800C1, had the exact same specification the the original Dell memory. Did I miss something? (By the way I read that removing the battery and holding down the power button for 30 seconds might solve my problem but that didn't help. The posting never explained what this action would solve.)
Thanks for you help.
ieee488
4 Operator
•
11.1K Posts
0
December 3rd, 2017 07:00
Put back the old RAM.
If your old RAM works then your new RAM is incompatible.
Also practice ESD protection when handling RAM.
JosephAE
6 Posts
0
December 3rd, 2017 09:00
Installing my origina 4GBl memory still works.
Are the specifications for the two sets of memory the same?
If so why wouldn't the 8GB memory work?
The Inspiron 1750 is capable of supporting 8GB.
ieee488
4 Operator
•
11.1K Posts
0
December 3rd, 2017 09:00
I am not bothering to verify your new RAM.
That's your responsibility.
I buy RAM from Crucial.
JosephAE
6 Posts
0
December 3rd, 2017 14:00
Will do.
What do you mean by lower and higher density?
ejn63
9 Legend
•
87.5K Posts
0
December 3rd, 2017 14:00
The specs you've posted don't tell the whole story -- this is an older system. Check the specs on the existing module as to the chip density (internal layout of the chips). It may be the older system needs low density layout -- where the new module is higher density than the system will support.
JosephAE
6 Posts
0
December 3rd, 2017 14:00
I thought this forum was for Dell owners to get help with their machines.
If someone with knowledge of computer memory can help me.
Shouldn't the memory I reference above be compatible. Did I miss something?
ejn63
9 Legend
•
87.5K Posts
0
December 3rd, 2017 15:00
It means the way the memory cells are laid out inside the RAM chips. It's not uncommon for manufacturers to increase the density of the cells to reduce the size of the silicon chip as successive generations of memory are released - it lowers costs. Equally, systems that are older on the technology curve very often don't work well (or at all) with newer modules that use higher-density chips.
Particularly with older systems, it's a good idea to buy RAM tested and certified to work with specific modules. Most of the major manufacturers have compatibility lists -- some will back that with a money-back guarantee.
Your system dates back close to a decade - which makes the density issue one strong possibility.