RAM Upgrade for GT75-7RF

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badpharma

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Hello every one,

I need the opinion of MSI Experts regarding to RAM Upgrade to my Laptop MSI GT75 - 7RF
Currnet RAM 32 GB 2400MHz

I am looking for
HyperX Impact 64GB 2666MHz DDR4 CL16 SODIMM (Kit of 2) Laptop Memory HX426S16IBK2/64

https://www.amazon.com/gp/product/B08492TQGQ/ref=ox_sc_act_title_2?smid=ATVPDKIKX0DER&psc=1

Appreciate your help

Regards
 
ideal use same 2400 kit - full compatibility ,,2666 works -using lower SPD 2400 or still need OC
on my NB normal works OC 2800mhz ,,but not must works for all :smile:
use 2400 + OC tab
my gt75 7re
MSI24D4S7D8MH-16 oem ram
+ 9905712-008.A00G Kingston

2400- max support NB page or intel sheet
 
So you mean that 2666 is not compatible with my laptop and the max is 2400 ?

as I see the same kit of 2400 with the same price
 
badpharma date=1594066944 said:
So you mean that 2666 is not compatible with my laptop and the max is 2400 ?

as I see the same kit of 2400 with the same price
Click to expand...
even so, only 2400 will be used - lower spd profile

for 2666 need custom setup in OC tab - default is 2400 max
..for me 2800 2x 16gb ,,more ram possible lower freq
..edit 2400 mem is 100./. compatible ,,exist more SPD 2666 contains lower  ,,but native is not compatible
 
now using 32 gb ram ? buy same ?  or need 64gb ??  for me impossible use 32gb-no swap ;D
hwinfo -- module name/SN -- more info
https://www.hwinfo.com/
 
General Module Information                                                     
Module Number:                                                                  0
Module Size:                                                                    16 GBytes
Memory Type:                                                                    DDR4 SDRAM
Module Type:                                                                    SO-DIMM
Memory Speed:                                                                   1200.5 MHz (DDR4-2400 / PC4-19200)
Module Manufacturer:                                                            Samsung
Module Part Number:                                                             M471A2K43CB1-CRC
Module Revision:                                                                0.0
Module Serial Number:                                                           2849144119
Module Manufacturing Date:                                                      Year: 2017, Week: 46
Module Manufacturing Location:                                                  2
SDRAM Manufacturer:                                                             Samsung
DRAM Steppping:                                                                 0.0
Error Check/Correction:                                                         None

Module Characteristics                                                         
Row Address Bits:                                                               16
Column Address Bits:                                                            10
Module Density:                                                                 8192 Mb
Number Of Ranks:                                                                2
Device Width:                                                                   8 bits
Bus Width:                                                                      64 bits
Die Count:                                                                      1
Module Nominal Voltage (VDD):                                                   1.2 V
Minimum SDRAM Cycle Time (tCKAVGmin):                                           0.83300 ns
Maximum SDRAM Cycle Time (tCKAVGmax):                                           1.60000 ns
CAS# Latencies Supported:                                                       10, 11, 12, 13, 14, 15, 16, 17, 18
Minimum CAS# Latency Time (tAAmin):                                             13.750 ns
Minimum RAS# to CAS# Delay (tRCDmin):                                           13.750 ns
Minimum Row Precharge Time (tRPmin):                                            13.750 ns
Minimum Active to Precharge Time (tRASmin):                                     32.000 ns

Supported Module Timing at 1200.0 MHz:                                          17-17-17-39
Supported Module Timing at 1066.7 MHz:                                          15-15-15-35
Supported Module Timing at 933.3 MHz:                                           13-13-13-30
Supported Module Timing at 800.0 MHz:                                           11-11-11-26
Supported Module Timing at 666.7 MHz:                                           10-10-10-22

Minimum Active to Active/Refresh Time (tRCmin):                                 45.750 ns
Minimum Refresh Recovery Time Delay (tRFC1min):                                 350.000 ns
Minimum Refresh Recovery Time Delay (tRFC2min):                                 260.000 ns
Minimum Refresh Recovery Time Delay (tRFC4min):                                 160.000 ns
Minimum Four Activate Window Delay Time (tFAWmin):                              21.000 ns
Minimum Active to Active Delay Time - Different Bank Group (tRRD_Smin):         3.300 ns
Minimum Active to Active Delay Time - Same Bank Group (tRRD_Lmin):              4.900 ns
Minimum CAS to CAS Delay Time - Same Bank Group (tCCD_Lmin):                    5.000 ns

Features                                                                       
Module Temperature Sensor (TSOD):                                               Not Supported
Module Nominal Height:                                                          29 - 30 mm
Module Maximum Thickness (Front):                                               1 - 2 mm
Module Maximum Thickness (Back):                                                1 - 2 mm
Address Mapping from Edge Connector to DRAM:                                    Mirrored
 
RAM Installed on 2 slots
Zero and 2nd slot
2x16

I will replace with 2x32 HyperX in the same slots then I will sell the old RAM
MAX Ram : 64 GB

I need the upgrade the ram to handle heavy software like after effects and premiere pro, I already upgraded SSD to Samsung 960 pro (2x512) with Raid 0 Setup after purchasing this laptop

What is your opinion?
 
oem ram is installed under motherboard - full disassembly :bonk:
 2x32 HyperX - is good ram ,,but GT have OC tab - my is normal stock ram and works better than HyperX
,, when installed 2x same ram under cover M471A2K43CB1-CRC
possibly get lower speed or only 2400mhz ..but is easy upgrade "only remove cover"

depends on you

gt75 7re gtx1070
original + custom setting + ""better cooling for maximum under high temperatures around 30C room"" :-P)

https://www.userbenchmark.com/UserRun/30318978

some eom parts is really good ,,,only need setup or new drivers ,,you don't have to spend ;)
 
So I understood that your recommendation is not to change the installed OEM Ram

So I think it's better to add 2 Rams of 16 GB of
M471A2K43CB1-CRC
https://www.amazon.com/gp/product/B074PNTC8L/ref=ox_sc_act_title_1?smid=AHJ6HS5PQ4QLI&psc=1

What is your opinion?

Thanks for your patience ;D
 
badpharma date=1594129157 said:
So I understood that your recommendation is not to change the installed OEM Ram

So I think it's better to add 2 Rams of 16 GB of
M471A2K43CB1-CRC
https://www.amazon.com/gp/product/B074PNTC8L/ref=ox_sc_act_title_1?smid=AHJ6HS5PQ4QLI&psc=1

What is your opinion?

Thanks for your patience ;D
Click to expand...
It depends if you want a full disassembly ,,its not easy
....better use same ram add under cover only /lower cost
,,and Samsung chip is best --possibility get good/stable OC



same is Samsung 960 pro --same good SSD :)  or oem toshiba works fine for me
..but samsung is better :biggthumbsup:
 
look through the cover ,,ram slots is visible "close cpu heatsing"
,..oem is under motherboard ,,and any disassembly is risk "hw problems" :bonk:

,,same is compatibility samsung ram works good ,,,some gskill or similar better ram need working XMP or add SA offset - normal not works ""unstable under load""
"xmp not works on this NB think - need mod :think: "

,,motherboard -ram position ,,next is under motherboard  
https://www.laptopmain.com/msi-gt75vr-titan-disassembly-ssd-ram-hdd-upgrade-options/
 
So I can use the 2 new rams in the visible slots undercover as the OEM Rams is below Motherboard

So Purchasing 2 Extra same Samsung rams  and installing them in the visible slots is enough and I do not need full disassembly

Am I right ?
 
https://ibb.co/CPdfZDj

CPdfZDj

This my laptop after removing cover the 2 ram slots in the visible side are empty
 
badpharma date=1594133965 said:
So I can use the 2 new rams in the visible slots undercover as the OEM Rams is below Motherboard

So Purchasing 2 Extra same Samsung rams  and installing them in the visible slots is enough and I do not need full disassembly

Am I right ?
Click to expand...
:biggthumbsup:  ..best way "easy upgrade"


... if you need anything .. just write
,, mine is the same model "only D-gpu is the difference" ;)
last drivers or settings ;)

...good luck
 
Just cause I like to talk I write this!
If you cannot upgrade your RAM speed by 500 Mhz (as Max specd by Manufacturer) it is best to just fill the hatch side slots with the extra same RAM. You will simply not be able to detect (Feel) any speed difference unless you can make the 500 Mhz jump. Known rule of the "Elders"!!
Use the Crucial RAM guide and find the max your rig will take and calculate from there, and then think it over 3 more times!!!
eg: I have a 4 Slot RAM MSI GT73VR Titan DDR4-2400, 4 Slots, Max 64GB, . It will run 32 Gigs (16gbx2) 2933 Mhz Kingston Hyper X in the 2 RAM slots right behind the Bottom Cover.
It "WILL NOT" run those 2 sticks of RAM if put in the 2 slots under the Keyboard (read Motherboard Flip required) and the Bottom Cover slots empty.
It all depends on the TOTAL Ghz RAM the CPU will Run. So my GT73 sees that 32Ghz (16gbx2) 2933 RAM as "Too Much" RAM to have anything added to in the outer slots and refuses to accept it on the Keyboard side but runs it just fine in 2 slots under the bottom cover with the Keyboard side slots Empty because 0 + 2=2 or not!!
I have upgrade MANY lappys and found that for Max RAM speed it is flip the MoBo empty the RAM slots and use the Bottom Cover slots with the faster chips. Go Down in Amount of RAM and Up in Speed. I am finding now that in AAA games coming out that Total System usage is exceeding 16Gb+ of RAM so 32Gb is the new rule with the highest speed.
Just my experience!
 
Last edited:
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