Laptop Ram Upgrade Problem

[vkb0310]

Hello,

I have an Acer Aspire 5742G laptop with i5 processor and Nvidia GT420M GPU.

Presently I've got 2x4GB 1333MHZ DDR3 RAM modules in my laptop.

I got the following from 'Speccy'

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RAM

Memory slots​

Total memory slots 2​

Used memory slots 2​

Free memory slots 0​

Memory​

Type DDR3​

Size 4096 MBytes​

Channels # Dual​

DRAM Frequency 528.2 MHz​

CAS# Latency (CL) 7 clocks​

RAS# to CAS# Delay (tRCD) 7 clocks​

RAS# Precharge (tRP) 7 clocks​

Cycle Time (tRAS) 20 clocks​

Command Rate (CR) 1T​

Physical Memory​

Memory Usage 51 %​

Total Physical 3.87 GB​

Available Physical 1.88 GB​

Total Virtual 5.74 GB​

Available Virtual 3.23 GB​

Number Of SPD Modules 2​

Slot #1​

Type DDR3​

Size 2048 MBytes​

Manufacturer Samsung​

Max Bandwidth PC3-10700 (667 MHz)​

Part Number M471B5673FH0-CH9​

Serial Number 62E5C3D3​

Week/year 32 / 10​

SPD Ext. EPP​

Slot #2​

Type DDR3​

Size 2048 MBytes​

Manufacturer Samsung​

Max Bandwidth PC3-10700 (667 MHz)​

Part Number M471B5673FH0-CH9​

Serial Number 62E5C449​

Week/year 32 / 10​

SPD Ext. EPP​

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I purchased Transcend JetRam DDR3 8 GB Laptop RAM (JM1333KSH-8G) from flipkart

When I tried booting with the new module installed, my laptop would boot till windows logo and then suddenly.
Same thing happens with Ubuntu (both dual-boot and live boot from USB drive). Everything works fine with the old modules but not the new one. What might be the problem?