Corsair Ram problem (need some help regarding voltages)

jakeeee · Dec 11, 2015

I just purchased a new set of "Corsair CMZ8GX3M2A1600C9 Vengeance 8GB (2x4GB) DDR3 1600 Mhz"

I currently have the exact same model installed in my pc which is two years old. It was running stable at "1600mhz" with the XMP profile.

I should also mention the only diffrence between the RAM are the "version number" 8.16 for the new and 5.21 with the current.

I Installed the newly purchased RAM with the XMP profile but it wouldn't boot/load into windows. I then turned off the XMP profile and the ram booted and is running stable @1333mhz.

I've tried turning back on the XMP Profile (1600mhz) and also increasing the voltages manually from 1.5v to 1.55v and 1.60v and 1.64v which all actually did boot into windows but after a short period of time while gaming the PC would lock up/freeze with the these voltages.

My question: is it safe and will it be stable enough to up the voltages to 1.66v with the XMP Profile to see if I can run the ram at 1600mhz?

My Gigabyte motherboard (GA-Z68AP-D3 (rev. 2.0) ) UEFI BIOS does not let me set the voltage to 1.65v for some odd reason and when I try to set it at 1.65v it jumps to 1.66v.

Would really appreciate the help regarding this problem, yeah all four sticks of ram is absolutely fine @1333mhz (4x4) but I would like have it running STABLE @1600mhz if at all possible. If you need any more details or specification let me know. Apologies for the long post.

Thanks,

Specs:

CPU: i7 3770k @ 3.50GHz
GPU: Sapphire AMD R9 390X Graphics Card
RAM: Vengeance 16GB DDR3 (4x4)
PSU: Corsair Builder Series CX 750W V2 80 Plus Bronze
MOTHERBOARD: Gigabyte GA-Z68AP-D3 (Rev 2.0)
SSD: SanDisk SSD PLUS 240 GB Sata III
HDD: 1TB Western Digital Blue

Dark Lord of Tech · Dec 11, 2015

This is common , even memory modules that are identical , but purchased at different times can be incompatible.

Best when coming from same retail package.

You need to run the old pair or new pair.

jakeeee · Dec 11, 2015

Thanks for your fast response..so what do you suggest exactly? Like I said the RAM is running absolutely fine @1333mhz "I think (No crashes/lock ups)" but I really want to up the speeds to 1600.

I can return the newly purchased RAM too Amazon but then what if I want to upgrade to 16gb? One version is newer than the other basically that's it. Is there any way to get the exact same version (5.21) of RAM from anywhere?

Thanks again.

Dark Lord of Tech · Dec 11, 2015

Yes they are most compatible in the same retail packs.

We see this type of thing on the forums from time to time.

Sometimes they won't boot at all.

Dark Lord of Tech · Dec 11, 2015

Tradesman1
http://www.tomshardware.co.uk/community/profile-1333705.htm
Send this Mod a PM , he's great with the ram issues.

jakeeee · Dec 11, 2015

Okay thanks a lot, just sent a PM really much appreciated

Dark Lord of Tech · Dec 11, 2015

Hopefully he can get it up and running at full.

Tradesman1 · Dec 11, 2015

Make sure you have the latest BIOS, many of the Z68 mobos never got the attention needed to the BIOS. Try starting with the original 2 sticks, enable XMP and select profile 1. Next raise the DRAM voltage to 1.56, and then raise the VTT (think maybe listed as QPI/VTT) voltage to 1.23 or so, save, exit, shut down, try adding the other two sticks

jakeeee · Dec 11, 2015

Tradesman1 :

THANK YOU SO SO MUCH!!

Done exactly what you said, it did crash after 5 minutes of booting into windows but apart from that so far so good!!

I will update you guys / respond to this thread about the system in a day or so just to make sure it's running "stable enough" if that's okay?

Should also mention when I changed the VTT to 1.23v it jumped to 1.24v (hopefully this is normal lol)

But seriously thanks again man you're a f*cking god!! Also thanks to @SR-71 Blackbird for referring me to this genius!!

Dark Lord of Tech · Dec 11, 2015

He's the best!!!!!

Tradesman1 · Dec 11, 2015

No worries, keep us updated in case additional adjustments needed, and the slight jump to 1.24 is OK, they prob have some set voltage settings they round off to depending on what you input manually

jakeeee · Dec 11, 2015

Tradesman1 :

Thanks again guys seriously totally appreciate it!!

Will do man was honestly about to take my desktop to a pc repair shop after all the freezing issues after upgrading to a new ssd, graphics card and ram haha but god damn you's are the best!!

Tradesman1 · Dec 11, 2015

jakeeee :

________________

That's why the forums are here....and in a case like this, you might well be wasting your money in a shop, I've heard lots of bad info given out by 'techs' at shops and even from manufacturers service folks

jakeeee · Dec 11, 2015

Tradesman1 :

Yep exactly plus they most likely overcharge but sometimes you just have no option when your completely stuck and clueless haha!

Anyway's a quick update..I've been gaming on Black Ops 3 for about 2 hours and it hasn't crashed at all plus the performance feels al lot more "smoother" no frame rate/stuttering issues. Isn't probably the best game to test it on as it's not fully optimized but god damn couldn't thank you any more!

Tradesman1 · Dec 11, 2015

That's why we're here

jakeeee · Dec 12, 2015

Tradesman1 :

Just a update everything seems absolutely perfect, everything seems to be running smoothly and it hasn't froze/crashed once..I LOVE YOU NO HOMO

The only kinda "off topic" thing was this "the instruction at 0x0046dd64 referenced memory at 0xffffffff" on Arma 2 Operation Arrowhead I've been getting which causes the game to crash. Tried reinstalling and verifying game cache but still pops up/crashes the game. The link below shows some solutions and I was thinking of trying something with the paging files. Should I attempt/look into this or just leave these at default?

https://support.steampowered.com/kb_article.php?ref=1274-uohk-5653

Also if you don't mind me asking, do you recommend any other "performance tweaks/modifications" to boost my computer for gaming @144hz?

Trying to maintain 144fps on certain games is quite difficult or a no go on certain games which I understand but some older games (including Arma 2) I feel like I'm doing something wrong even with trying certain launch options/config tweaks etc.

Thanks once again for your incredible fix you don't understand how much I appreciate it!!

Tradesman1 · Dec 12, 2015

Might try reloading the game with the error, that might also simply be having problems as not all games (especially older ones) are optimized to run on this given hardware setup

Corsair Ram problem (need some help regarding voltages)

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