PC wont start with both sticks of ram

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Sasa123

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Apr 12, 2016
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Hey y'all, I just built my first PC, and I happened to forget a stick of ram. While my PC starts perfectly fine with 1 stick and the whole computer runs, when the second stick is in, the computer just turns on and off every 5 seconds when I try to power it on. I'm 99% sure I put it in correctly. Could it be my MOBO?
I'm currently running a
GIGABYTE B150-D3H DDR3 LGA1151 MOBO,
And my RAM sticks are the G.Skill Ripjaws DDR3-1866 4gbx2 sticks.
Is it possible I might be accidently overclocking? Do I need to reset the CMOS? Any help would be awesome.
 
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Sasa123

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Apr 12, 2016
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Naturally I put it in the DDR3 slot on my MOBO but it just seems to throw my PC into a boot loop. I can't load any new options on bios considering I cant change my settings if the boot loop keeps occurring with the second stick of ram.

OE3QCAo


Thats my MOBO that works right now, however, when I put the other ram in the slot next to it, my PC boot loops.
 
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rollgg

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Jan 15, 2016
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What I meant is, are you installing them in the same color slots?
You have 4 possible DDR3 slots. They should be of alternating colors - I believe black and grey from looking at the photos of your MB.
The 2 sticks should be in slots of the same color.

The changes in BIOS can be done with 1 stick only since you mention that PC boots fine then.
 
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Sasa123

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Apr 12, 2016
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I've tried putting it in every slot and the boot loop still continues. What settings would I need to change in BIOS to get it to recognize my other bit of RAM? (Sorry for the noob question, first build)
 
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rollgg

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Jan 15, 2016
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Your memory isn't on the Supported Memory list:

http://www.gigabyte.com/products/product-page.aspx?pid=5516#memory%20support%20list

This doesn't always mean memory won't work as the list normally comes out with the motherboard so it only includes what's available upon release.
If you know your exact model, check g.skill site - they also have a list of which motherboards are compatible for each model of memory.
I suspect though that Gigabyte list is correct and your memory isn't compatible.
 
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Sasa123

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Apr 12, 2016
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It claims it isn't compatible on the G.SKILL site, so does that mean I'd be able to just purchase a different stick of RAM and not have to really mess with BIOS or anything? And how will I know which RAM will be compatible with the first stick of RAM I'm currently using? Just seems confusing that only one stick out of the package would work.
 
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rollgg

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Jan 15, 2016
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Mixing different brands of RAM isn't recommended.
Can you give us a link to your exact memory model on the g.skill site?
Memories do often work without being in the supported lists - those on the lists are guaranteed to work.

Can you check the Memory Frequency in your BIOS?

The only way to play it 100% safe would be to buy memory that lists your motherboard in the compatible ones and forget about your 1 working stick - you can sell it on ebay or locally.
 
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Sasa123

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Apr 12, 2016
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http://gskill.com/en/product/f3-14900cl9d-8gbxl
Thats my current model.
And my memory frequency is at 1600MHz. And thanks for the help so far haha, Just trying to figure stuff out.
 
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rollgg

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No worries, I could have bought the memory expecting it to work. Frequency in BIOS is ok.
It's still weird that it won't work I have to admit, but since you're not very comfortable with messing with BIOS (and we still can't tell if you'd succeed) perhaps the safest option is to just get the model you listed above.
 
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Sasa123

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Apr 12, 2016
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I mean, I don't mind messing with BIOS, I just don't have much experience and would need some guidance on what to modify and how. If thats possible, I'd be fine with messing with BIOS.
 
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rollgg

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Jan 15, 2016
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Check if there's anything that's not set to auto when it comes to RAM frequency and voltage. What voltage do you see ?
It might seem intimidating but don't let it stop you, you can post photos of the screens for help.
 
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rollgg

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Jan 15, 2016
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Not a lot of things left to try imo, let's see:

1. PC boots fine just with 1 stick - is it always the same stick that leads to successful boot? Might worth to label them 1 & 2 and try to see if it's a specific one causing the trouble.

2. check RAM timings in the BIOS. or run CPU-Z (google) and post here screenshots of the tabs called "memory" and "SPD" and we can see the timings there.
 
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Sasa123

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Apr 12, 2016
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The other stick has worked fine and heres my timings and such
http://imgur.com/xXAyLGg
http://imgur.com/ch0kHio

 
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rollgg

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Jan 15, 2016
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Everything looks ok here.

I would try to underclock the memory a bit and see what happens.
You need to find and lower DRAM frequency in the BIOS.
What you have would typically mean either incompatible memory or non-matching memory sticks. I'm assuming you have bought them as a pair so this shouldn't be an issue (serial # should be consequencial).
Which CPU are you using?

 
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Sasa123

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Apr 12, 2016
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The memory are the same exact serial #. My CPU is a Intel i5-6600k @ 3.5ghz. Is there a certain frequency I should drop to? And I waa reading other forums about how they upped the voltage +.05 for DRAM and they updated BIOS, so I might try that too.

 
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