acer 4741z Ram upgrade fail...please help

mihir zalawadia

May 3, 2013
Here is the current detail of my Notebook memory by CPU-Z

And I tried to replace one of the 1Gb module with 4gb Corsair value select model no (CMO4GX3M1A1333C9).

But the laptop wont start beyond bios logo and if I do start up repair the blue screen error comes.
I have tried every combination like using different slots for new ram or using only new ram.

Acer 4741Z current details
Northbridge Intel Havendale/Clarkdale Host Bridge rev. 12
Southbridge Intel HM55 rev. 05
Memory Type DDR3
Memory Size 3072 MBytes
Channels Dual, (Symmetric)
Memory Frequency 532.0 MHz (4:16)
CAS# latency (CL) 7.0
RAS# to CAS# delay (tRCD) 7
RAS# Precharge (tRP) 7
Cycle Time (tRAS) 20

DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format SO-DIMM
Manufacturer (ID) Elpida (7F7FFE0000000000)
Size 1024 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number EBJ10UE8BDS0-DJ-F
Serial number A2231370
Manufacturing date Week 14/Year 10
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-17-23 @ 457 MHz
JEDEC #3 7.0-7-7-20-27 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-25-34 @ 685 MHz


Does the laptop support 4GB sticks, is this a supported stick....laptops are very picky about the DRAM they take and aren't like a desktop where you can adjust timings and voltages....the stick is prob good but isn't compatible

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