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Ram upgrade from 2x2GB 2Rx8 PC3-10600 to 1x8GB PC3-12800 not working.(laptop)

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October 12, 2013 5:02:55 AM

I have a preety old laptop(5 years): HP EliteBook 8540w with 2x2GB memory(one rimary slot, one expansion slot). I wanted to upgrade to one piece: "G.SKILL SO-DIMM DDR3 8GB 1600MHz CL10". Each time i run windows 7 prof. with this one it gives me a blue screen with some text and restarts after 2/3 sec. However, when I open the computer diagnostics it shows me correctly 8 GB installed. I also tried different combinations like 8 and 2 GB. I also checed it with 2x4GB from different laptop(parameters were okay), and nothing hapens. I have my BIOS update. Also, when I run the memory test in computers diagnostics it freezes and I have to restart the comp. manualy.
Please help
a b } Memory
October 12, 2013 5:13:19 AM

Your laptop supports a maximum of 8gb of ram.
It only supports a maximum of 2x4gb modules. It does not support 8gb modules.
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October 12, 2013 5:15:23 AM

But wait i tried 2x4GB(although Pc3-12800) but still
October 12, 2013 5:18:06 AM

Unolocogringo said:
Your laptop supports a maximum of 8gb of ram.
It only supports a maximum of 2x4gb modules. It does not support 8gb modules.


I tried 2x4GB Pc3-12800 - did not work
a b D Laptop
a b } Memory
October 12, 2013 5:18:32 AM

tht a total of 8gb on dual chanel and it should work.
anything above 1333 mhz is automticaly underclocked.
if it is not underclocked automaticly you should manuly underclockit in the bios.
October 12, 2013 5:21:17 AM

JOHNN93 said:
tht a total of 8gb on dual chanel and it should work.
anything above 1333 mhz is automticaly underclocked.

Well but Win should still launch even with reduced frequency

a b D Laptop
a b } Memory
October 12, 2013 5:25:48 AM

DDR3 PC3-10600 SDRAM (1333 MHz)* Two SODIMM slots supporting dual-channel memory 1024MB, 2048MB, 3072MB, or 4096MB

this is from hp you inserted pc3-12800 of course it won't work
!