Asus Z77-A wont read the rest of my ram.

impawpz · Mar 20, 2014

Hey guys i recently bought DDR3 Corsair Vengeance 1866mhz 2x4 RAM. Currently i have 8GB of the same RAM installed, but when i try to put in the other 2 sticks, my computer won't boot up fully.

It won't read my keyboard, mouse, and monitors as well. The monitors will be on but with the orange light being up.

What i did do was try one stick and put it into each slot. The first two slots made the computer boot fully, the last two didn't. I'm hoping it's not a motherboard problem because my computer is only two months old tops.

Would love to get some feedback asap. Thank you!

Bad_Kitty13 · Mar 20, 2014

are these sticks 1.65v or 1.5v?

impawpz · Mar 20, 2014

Bad_Kitty13 :

They are 1.50V

Bad_Kitty13 · Mar 20, 2014

have you tried each stick individually in slot 1?
are they the same exact set? are the timings the same, ex 9-9-9-24

impawpz · Mar 20, 2014

Yes i have tried each stick individually. All the sticks work in the first two slots, when it gets to the second two it doesn't boot up properly.

They are the same exact set of RAM. And timings of all the RAM sticks correct? I will check on that asap.

Bad_Kitty13 · Mar 20, 2014

also try setting them at 1600 in bios and see if they run this way

impawpz · Mar 20, 2014

I have checked all the timings and they are all 9-9-9-24. And I put each stick into the first spot and they all seem to be working just fine. And that goes with the second slot as well. When I reach the third and fourth they dont boot it up all the way again.

Bad_Kitty13 · Mar 20, 2014

if you have win 7 home it only supports 16gbs you would need win7 pro
http://www.zdnet.com/blog/hardware/max-memory-limits-for-64-bit-windows-7/4254

impawpz · Mar 20, 2014

Bad_Kitty13 :

Currently I have Win 7 ultimate 32-bit. Does that matter tho?

Bad_Kitty13 · Mar 20, 2014

if you have ultimate your good there it supports 196gb i think

try the trouble shooting on this link to another forum thread it should fix your issue
http://www.tomshardware.com/answers/id-1755989/windows-system-recognizing-16gb-32gb-newly-installed-ram.html

what processor do you have ill check its limitations

impawpz · Mar 20, 2014

Bad_Kitty13 :

My processor is the i5-3570k and its running at 3.40GHz

and i made a new thread in the other forum as i seem to have gotten the wrong forum, sorry about that >.<

Bad_Kitty13 · Mar 20, 2014

its fine

and i checked it and it supports 32gbs of ram @ 1600

did you try them @ 1600? to see if they will run

impawpz · Mar 20, 2014

Bad_Kitty13 :

Ya, currently i'm running 8GB of ram on 1600. Because when i put in the full 16 it doesn't boot up all the way. No "starting windows" screen, no login screen, no nothing. So i have to take out the other 8 in order for it to boot.

Bad_Kitty13 · Mar 20, 2014

can you put in all 4 sticks and go into bios and set them to 1600...it should let you do that

then power down and go into windows

if this works we can try enabling xmp

impawpz · Mar 20, 2014

Bad_Kitty13 :

The problem with that is, when i put in all 4 sticks, it won't read anything. My monitors, keyboard, mouse, other usb devices, etc. It'll turn on but i'll get no feed from my monitors. I've also tried with 3 sticks, same scenario pops up. My screens will just be black and my monitors will have the orange light on. So it won't let me reach the bios. Does that make sense? Maybe my wording is a bit weird >.<

The lights will turn on, the fans will start moving, but it won't turn on completely.

Bad_Kitty13 · Mar 20, 2014

are you running on onboard graphics(connecting display to motherboard i/o not gpu)?

impawpz · Mar 20, 2014

Bad_Kitty13 :

I'm plugged into my gpu, not running on onboard graphics

Bad_Kitty13 · Mar 20, 2014

try running on onboard graphics you should be able to see the bios splash with the 4 sticks in. then set them to 1600 and see if you can boot

impawpz · Mar 20, 2014

Unfortunately it didn't show the BIOS splash when I plugged my monitor into the I boards graphics slot.

Bad_Kitty13 · Mar 20, 2014

try going into bios with sticks in slot 1,3 not 2 this is dual channel setup

go into bios reset bios to default settings power down add other 2 sticks try to go into bios

also disconnect your gpu power cable to rule out psu, but it shouldnt be because the power draw for ram is rather low

impawpz · Mar 20, 2014

Hm, it seems as if what you're saying about dual channel isn't working. Because it mainly worked with it being in slots 1 and 2.

When I tried slots 1-3 and 2-4, they would not work.

The slots they're in are light blue and black. There are two black slots and 2 light blue slots. With that being said, it is currently I'm one light blue slot and one black slot. Is that bad?

Bad_Kitty13 · Mar 20, 2014

it means your running in single channel and not dual channel it is just a performance hit but you should be able to run in dual channel. have you checked for bent cpu pins, its starting to sound like bad slots/channel

impawpz · Mar 20, 2014

Hm, that's what one of the other techs in the memory forum was hinting to, and I have not checked it yet.

I will check once I get back home later on tonight. I'll keep you updated.

Bad_Kitty13 · Mar 20, 2014

ok ill be here

Bad_Kitty13 · Mar 20, 2014

before you take the heatsink all the way off try loosening it a tad, about 1 turn sometimes a tight cpu heatsink can cause a pinch on a memory channel as well. so loosen it about a turn maybe 2 and then try with your ram in

Asus Z77-A wont read the rest of my ram.

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