RAM Upgrade for GT75-7RF

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
 

next3r

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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
 

badpharma

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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
 

next3r

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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
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
 

next3r

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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/
 

badpharma

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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
 

badpharma

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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?
 

next3r

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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 ;)
 

badpharma

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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
 

next3r

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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
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:
 

next3r

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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/
 

badpharma

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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 ?
 

badpharma

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https://ibb.co/CPdfZDj


This my laptop after removing cover the 2 ram slots in the visible side are empty
 

next3r

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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 ?
: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
 
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