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(HELP!!) Windows 7 Won't Boot after Memory Upgrade

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November 18, 2013 7:15:08 PM

So I have been having issues with my memory...long story short I bought Corsair Vengeance 8GB (2x4GB) memory and now windows 7 will not boot up. My computer will still boot up with my old memory. I think that it might be something to do with BIOS settings but I don't want to mess with that unless instructed the proper way to...because I don't want to accidentally way Over Clock something. Right now all of my BIOS memory options are set to auto... If you need more info let me know!
System Specs

--Processor: AMD Athlon X4 750K Processor

--Motherboard: MSI FM2-A75MA-E35 Motherboard


--Graphics Card: XFX Radeon HD 7770 GHz Edition Graphics Card


--RAM: 8GB (2x4GB) Corsair Vengeance DDR3 RAM


--Hard Drive: 500GB Western Digital Caviar Blue Hard Drive

--Case: NZXT Source 210 Case


--Power Supply: 430W Corsair CX430 Power Supply


--OS: Windows 7


--Wifi: Asus PCE-N15
a b } Memory
November 18, 2013 8:03:45 PM

Is there an error of some sort when it doesn't boot?
Can you try booting with just 1 stick of the new RAM (then the other new stick).
What were the details of your old RAM, was it also two sticks or just one?
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November 18, 2013 8:03:52 PM

I think its because the motherboard does not support the RAM speed.

i.e: Corsair Vengeance 2x4gb 1866mhz
1866mhz is the ram speed.

Check the speed of the Corsair ram and compare it with the old ones.
Then check whether if your motherboard support it.
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November 18, 2013 8:06:51 PM

Zayc said:
I think its because the motherboard does not support the RAM speed.

i.e: Corsair Vengeance 2x4gb 1866mhz
1866mhz is the ram speed.

Check the speed of the Corsair ram and compare it with the old ones.
Then check whether if your motherboard support it.


The RAM that I am using has a speed of 1600mhz
This is the RAM I have
http://www.corsair.com/en/memory-by-product-family/veng...
I purchased two of these separately (not as a pack)
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November 18, 2013 8:10:44 PM

Windows is now booting up with the same RAM installed (corsair Vengeance) not sure why, didn't change anything...but when I run windows Memory test it still says that there are hardware problems...no error codes provided...tested both corsair vengeance sticks of RAM and both worked fine in all of the slots on my motherboard...
The RAM that worked fine for me (no hardware problems with windows memory diagnostic tool) was DDR3 1333 dual channel (two sticks) I am borrowing this RAM from my local PC shop...It is from Micro Center.
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a b } Memory
November 18, 2013 8:21:59 PM

First off, always buy bigger ram sets as a kit, not separately.
The many smaller ram timings are based on the quality (density)
of the ram as it comes off the production line. It is speed binned(tested) and set up according to its quality. Miss matched quality pairs of ram will cause boot problems as the bios finds conflicting timings in the ram sticks different system chips.
2nd off, allways re set the bios before installing new ram.
Its possible it cant boot while it is trying the old ram timings.
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a b } Memory
November 18, 2013 8:29:36 PM

It seems your bios has determined the ram will run at its lowest default timings. You need to set the xmp profile manually to get it to 1600 mhtz. A headache for sure with missmatched ram, but it will work ok for now on default. More ram is better than faster..
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November 19, 2013 8:50:00 AM

chrisso said:
It seems your bios has determined the ram will run at its lowest default timings. You need to set the xmp profile manually to get it to 1600 mhtz. A headache for sure with missmatched ram, but it will work ok for now on default. More ram is better than faster..


So what is the solution to my problem? Should I try to sell the RAM (Corsair Vengeance) and buy a new set as a pack???
Or should I change the BIOS settings??
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