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No display after RAM/CPU upgrade?


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#1 akki5230

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Posted 25 April 2015 - 07:55 AM

My system specs before upgrade :

 

CPU : Intel Pentium Dual Core E5400

Mobo : MSI G41M-P26

RAM : 4 GB DDR3 800 MHz

GPU : Asus Radeon HD 5450

PSU : 450W

 

I upgraded my cpu to Intel Core 2 Duo E7500

 

Now there's was no display. I knew this was RAM problem because it was happened before.

So I took out the 4 GB ram and put a 2 GB RAM on that slot. And the it worked fine. Everything worked fine on 2 GB RAM. The CPU was fine.  

But when I put 4 GB ram instead of 2 GB, there's no display on the monitor, nothing happens. only the cpu fan is ON. The same ram worked with the previous cpu. So what could be the problem. 

I've also reset the cmos by removing the battery but nothing.



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#2 bludgard

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Posted 25 April 2015 - 02:07 PM

Possible FSB speed/compatibility issue:

Core 2 in pic 1

Untitled_zpszbzfwc7n.jpg


Edited by bludgard, 25 April 2015 - 03:26 PM.


#3 akki5230

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Posted 26 April 2015 - 03:36 AM

Both the 4 GB Ram and the 2 GB RAM supports upto 1333 MHz FSB. 






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