looking for correct memory set for Acer aspire 5742. Can you help me around please?

aspire 5742

Reputable
Apr 18, 2015
10
0
4,510
good evening all.
I have an acer aspire 5742, i3-370m processor. it came with 4gb ram (2x2gb)
(o.s is windows 7 home premium in hdd and windows 7 ultimate in ssd,just for the note). i wanted to update ram to 8 gb but had a hellish time looking for the right one. The issue is that default ram was ddr3-10600(that's what was written on the memory sticker), when i bought 2x4gb of same kind system didn't boot, it recognized ram but I couldn't get to see desktop, it went on a rebooting loophole. after that i tried ddr3 pc3-12800, with same results. The guy at the computer shop couldn't find me a pc3-8500 1066...which is, i think, my last hope.
So basically my question is: anyone here has/had same laptop and upgraded memory to 8gb successfully?can you tell me which ram was correct?

i'm fairly upset since i wanted to upgrade memory since January.
 

aspire 5742

Reputable
Apr 18, 2015
10
0
4,510
i'll add the other specs i know from manufacturer

Operating system: Microsoft Windows 7 Home Premium
Display: 15.6-inch HD led LCD
Webcam: 1.3 megapixels
Processor: 2.4GHz Intel Core i3-370M
Memory: 4GB DDR3
Hard drive: 320GB SATA
Optical drive: DVD-RW (DL)
Graphics: Intel HD Graphics (128MB)
Audio: Integrated
Networking: Ethernet, Wi-Fi 802.11b/g/n
Ports: 3 x USB, 1 x HDMI, 1 x VGA, 1 x Ethernet (RJ-45)
Battery: 6-cell lithium-ion
Model: PEW71 5742
Included items: Laptop, AC adapter
Dimensions: 10 inches deep x 15 inches wide x 1.3 inches high
Weight: 5.73 pounds
19v 3,42 amp