Question Having issue with WIN 7 identfying Ram modules

[Aditya9paul]

Hi!. Have purchased 2 new DDR 3 ram (8GB) modules. earlier i had 1no 8Gb module installed already. now as I insert the 2 new ram modules my WIN 7 is not identifying the older module.

Whereas Cpu-Z is identifying all the ram sticks.

Validation link to CPU-Z for my current system.
https://valid.x86.fr/0q4u19

Need to understand the issue and how to correct this

 

[CountMike]

Hi!. Have purchased 2 new DDR 3 ram (8GB) modules. earlier i had 1no 8Gb module installed already. now as I insert the 2 new ram modules my WIN 7 is not identifying the older module.

Whereas Cpu-Z is identifying all the ram sticks.

Validation link to CPU-Z for my current system.
https://valid.x86.fr/0q4u19

Need to understand the issue and how to correct this

CPU_Z shows you run them in single channel mode which in turn may mean you have then in wrong slots. Check MB manual for proper placement.

 

[SkyNetRising]

CPU_Z shows you run them in single channel mode which in turn may mean you have then in wrong slots.

3 modules can not run in dual channel mode.

 

[CountMike]

3 modules can not run in dual channel mode.

When 2 identical are in right slots they should run in dual channel and third one in single.

 

[Aditya9paul]

Have replaced the Ram to the correct slot as per MB manual. Few are the interesting things that i observed.

1- only install the new RAM as per the correct order ( leaving the older ram removed). the frequency has increased from 1333mhz to 1600mhz.
2- After installing the old ram also along with the newer ones the frequency is again reduced to 1333mhz from 1600mhz. my assumption is 1600(new) + 1600(New) + 800 (Old) =4000mhz/3 = 1333mhz
3- even after placing all the ram in the correct slot my system still doesn't recognise the 24GB it still shows 16GB installed.
4- searched BIOS setup for enabling dual channels but didn't find any such options for it.

Link to current CPU-Z setup of the Memory cards. - https://valid.x86.fr/3dcvih

Link to the MB manual - https://download.gigabyte.com/FileL...3-r2_e.pdf?v=ebd1b7e8862808943787ae62f7d12bd5

 

[SkyNetRising]

3- even after placing all the ram in the correct slot my system still doesn't recognise the 24GB it still shows 16GB installed.

Can you show screenshots from ?

CPU-Z - memory and spd sections​

Task Manager - Performance/Memory​

Resource Monitor - memory section​

(upload to imgur.com and post link)

 

[Aditya9paul]

Apology for the delayed response.

Few updates:-
1- Have bought 2 more ram of the same specifications of the same frequency.
2- Have installed 4 ram on 4 channels, but now the total memory identified is 32gb by win 7 but the frequency is reduced to 1333 MHz from 1600 MHz.


the current link to the CPU- Z - https://valid.x86.fr/mg4wus

Screenshot of the CPU - Z -

https://imgur.com/a/zmVLorm

View: https://imgur.com/a/zmVLorm


Need to understand the cause of reduced frequency even after fixing all 4 of them of 1600mhz.

 

[SkyNetRising]

Go into BIOS and do following:
set latencies to 11-11-11-28,
command rate 2T,
DDR voltage 1.65V,
frequency 1600mhz.

 

[kerberos_20]

When 2 identical are in right slots they should run in dual channel and third one in single.

not every mainboards/cpus supports flex dual channel, but theoreticaly amd 7xx and better supports it
it might be related to ganged/unganged setting in bios that it reads single channel as you can switch from 1x128bit to 2x 64bits with it on ddr3

 

[Aditya9paul]

the BIOS is already like this only.

https://imgur.com/a/sbVP9aO

View: https://imgur.com/a/sbVP9aO

Go into BIOS and do following:
set latencies to 11-11-11-28,
command rate 2T,
DDR voltage 1.65V,
frequency 1600mhz.

 

[SkyNetRising]

the BIOS is already like this only.

Current settings are on Auto. Set it to Manual.

Then change

command timing to 2T and​

next 4 rows to same values as in SPD column (11-11-11-28),​

Leave rest on auto.

Then find DDR voltage settings and change to 1.65V.
Then change frequency to 1600mhz.

 

[kerberos_20]

Then find DDR voltage settings and change to 1.65V.
Then change frequency to 1600mhz.

isnt that voltage too high for CL11?
you do increase voltage when you reduce CL, its not the other way around

 

[SkyNetRising]

1.65V is OC voltage for DDR3.
It might be stable at lower voltages too.

First test operation in 1.65V,
then lower by 0.05V and retest.
If you can get to 1.5V stable, then that's enough.