Shutting down after RAM upgrade(from 4gb 1066mhz to 8gb 1600mhz)

J

jackis

New Member
When I turn on my laptop after few seconds it shut down without any warning. My cpu can support RAM up to 8gb 1066mhz and I have installed a RAM 8gb 1600mhz because I have read that newer rams can downclock their speed. So what is the issue here?

That's my laptop:

Dell Inspiron N5010
-Intel Core i5 M 430 2.27GHz
-ATI Mobility Radeon HD 5000 Series
-Hyundai Electronics DDR3 4gb 1066mhz
-Motherboard: Dell Inc. Model: 03C6YH
-HDD: Hitachi 300gb(purchased Sumsung Evo 250gb to replace it)

CPU link

Some screenshots to understand from hardware:
cpu z.jpg
 
It's really not a good idea to go that high on a machine that only supports 1066. Now if it would have supported 1333 then it might be different. It's either the laptop don't like the speed of the memory or the memory is faulty.
 
jack, I've got the same issue with a Sony laptop, same i5-430 processor, I'm going through the pain of return RAMs with eBuyer (at least theyr'e quite good about out. :) )
Any the best answers I've seen so far is....
http://forum.crucial.com/t5/Standar...lite-L555-S7008-Ram-compatibility/td-p/140611

Which basically says, the only thing that matters is the chip density on the SO-DIMM module.
I'll try it shortly - a week, but electrically I can understand it. (I can explain the nitty gritty of why the clock / voltage doesn't matter, or the internal structure of DRAMS if anyone is interested).

High density memory 4GB SO-DIMM = 8 chips = 512MB per chip
Low density (what's needed) = 16 chips = 256MB per chip.
I believe this is what the Mac compatible memories use



Of course it may be a red herring. :(
 
Last edited:
Its true that most desktops can auto back clock memory fine, especially retail boards. Being a laptop the Bios could be freaking out going from 1600 back to 1066 getting the timing and voltage right.
 
Back to Stangleholds comments,
Some good stuff here on the SPD ( the chip that tell the processor what the SODIMM can suport ).
http://en.wikipedia.org/wiki/Serial_presence_detect

The voltage doesn't look like an issue, (a bit field is used to show the supported voltages.), but how the BIOS supports 1600Mhz could be, even though it's in charge of selecting the clock it drives the SO-DIMM with.

Anyway, next trick is to see what eBuyer can do by way of finding a compatible module.
 
After 2 failed attempts I finally found the right memory for an i5 M 430. Crucial Technology are the only website with a memory finder with my laptop on. I got the memory they suggested and unsurprisingly it worked.
 
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