Vostro 3650, not able to upgrade RAM

Crucial is what we usually recommend for non Dell branded memory as its guaranteed to work.

Three things to try.

1. If you don't have the latest BIOS version upgrade the BIOS. Then power off and install the new memory and try.

https://www.dell.com/support/home/us/en/04/product-support/product/vostro-3650-desktop/docs

2. Power off the PC, install the memory making sure its properly installed (fully seated).  Remove the CR2032 coin cell battery on the motherboard for 10 minutes.  Reinstall the battery and then power on.  Some times the BIOS must be reset to recognize new memory and the battery removal will reset the BIOS.

3. If the first suggestion does not work, try one memory module at a time and see if it boots.  If it boots with one memory module in one memory slot, move that module to the second slot and try.  If it boots OK with that one memory module, do the same thing with the second module.  

Thanks for your comments.

Tried all step, still power light blinks when I insert 8 gb RAM.

1. When I insert 8GB crucial alone, pc not booting,

2. When I insert my working 4GB RAM in slot 1 and slot 2, pc booted, but RAM not detected in "System Information" but CPU z detected the RAM. Please find the details below.

CPUz -> SPD Tab

Memory SLot selection

Module size = 8192 MBytes. Max-Bandwith = PC3-12800 (800 MHz). Manufacturer = Crucial Technology

Part Number = CT102464160B.C16. Week/ Year = 06/16. Ranks = Dual

Timings Table

                                   JEDEC#3       JEDEC#4      JEDEC#5       JEDEC#6
Frequency                609MHz        685MHZ        761MHZ        800MHZ
CAS# Latency         8.0                  9.0                  10.0                 11.0
RAS # to CAS          8                     9                      10                    11
RAS# Percharge     8                     9                      10                    11
tRAS                         22                   24                     27                    28
tRC                           30                   33                     37                    39

Voltage                    1.50 V            1.50 V              1.50 V             1.50 V

Thanks,

Bharathwaj RK

You cannot mix 1.35v and 1.5v modules.

Specs: DDR3 PC3-12800 • CL=11 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V • 1024Meg x 64 •

Corsair CMZ8GX3M1A1600C10 spec is different.

that is the wrong ram. 

that is for toshiba, just looked now at crucial web site, and is WRONG.

Crucial does not sell a 16GB kit,  for your  PC only this as mac., 2x8G.    sorry it lists only the 8GB kit.

not only that but you bought high voltage ram 1.5v and not 1.3v as dell shows to use marked as DDR3L

• Total Capacity: 8GB DDR3L Non-ECC DIMM
• Module Type: DIMM
• Type/Error Check: Non-ECC
• Memory Form Factor: DDR3L 1.35v
• Memory Speed: 1600MHz (PC3-12800)
• CAS Latency (CL): CL11
• Memory Rank: 2R (Dual Rank)
• Brand: Kingston
• Warranty: Lifetime

Kingston has it.  sold everywhere, , 

the maker site is best to look first, find correct ram the buy it by exact SKU  KCP3L16ND8/8 

Dear Brother/Sister;

I am using dell vostro 3669 upgrade ram to 8gb DDR4 not booting.
I updated bios to version 1.17.1 and followed your instructions but still can't boot into main
Can you show me any other way.
Info RAM : KinhMax DDR4-2400 8Gb 1.2v