running out of ideas - samsung green & msi x79

pgi947

pgi947

pgi947

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Hi pack,

Everything I've tried with this memory so far is boiling back to the likelihood my motherboard doesn't like it. Before I sell up and buy some other dimms I figured I'd better ask you first :)

Basically anything over 1600mhz with sa/vtt at 1.2v pll at 1.9v won't post, if I fire it up to sa/vtt 1.35-1.4v I can get post but memtest will instantly throw out a few thousand errors, even at 1760mhz 11-12-12-36-2T 180. Ddr voltage is at 1.675v. Everything is fine at stock 1600mhz cl11 1.35v in memtest.

So I'm left with either a sub timing causing issues (all auto just now) or the motherboard just doesn't like the memory. Bios is the latest 2.1 and I've had 2400mhz dimms running at 2440 cl11 previously with much lower sa/vtt.

Any ideas?
 
I can easily try it in 8gb dual channel mode.

No other system to try it in unfortunately, though this chip was in both a ud7 and this xpower with my previous 2400mhz kit.

So wind everything back to stock on the cpu and re-try the memory? Though when I tried this before - but with 1.2v on sa & vtt it would only post at a high of 1866 11-14-14 2T.
 
Tried ddr voltage of 1.55, 1.65 & 1.675. My aim was to start with high volts and work back once I was happy it was stable.

From what I understand 1.4v IMC is Intel's spec limit for water. The chip has only ever been underwater and up until yesterday it had never sat higher then 1.2v on IMC, IMC volts on the 2400 kit only required ~1.15v. Highest vcore I've used is ~1.48v give or take with a little droop.

Edit: Timing details in this post: http://forums.overclockers.co.uk/showpost.php?p=24004082&postcount=1083
 
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Right, I've ordered some of the hyperx 10th anniversary 2400mhz stuff to see how that fairs up, should show if it's the chip/board or memory.
 
Check above post with a link in :)

Enjoy iseires then? I figured you'd be at home making up for a weekend of 'working' :p

Killed the purchase of the Kingston memory, though I have snagged a very cheap ripjawsz 2133 c9 kit if they become required.
 
Update: had an email back from msi, they provided me with a long list of dimms tested with the xpower II, stating if they pass or fail, Samsung isn't listed so can only presume these are untested by manufacturer.
 
You have email :)

I've had a better look at the list MSI gave me, the Samsung memory 100% isn't listed and MSI say if it isn't listed they can't diagnose if its a memory or motherboard problem :p
 
Sounds promising, thats tighter then my kingston 2400mhz kit would tune!!

I ultimately decided on G.Skill after I saw some review posts saying that basically G.Skill get first dibs on binning chips along side Corsair and the rest pretty much get the scraps neither of those want.

Didn't you just buy a RIVE last week??
 
Oh I will :)

Samsung isn't looking promising, 2000mhz 11-14-14-40-180-2T is failing memtest too. I'm getting the same sort of feedback as when I had some vengeance dimms on the UD7, can feel ok, but ultimately fails.
 
wazza300 said:
msi have sent a custom bios for someone with a z77 msi board in the motherboard thread so it could be down to poor bios support with Samsung green,he could run them much easier with the beta bios

http://forums.overclockers.co.uk/showthread.php?t=18499842
Click to expand...

Looking like an MSI related issue then :)

No such beta BIOS's exist for the Xpower II afaik, last beta was 1.45b, been two 'official' releases since that in 1.5 and 2.1.

8 Pack said:
Its a bios issue without doubt guys!!!! and I don't have a big bang to try.
Click to expand...

You had this confirmed by MSI mate? 2450 @ CL10!! Can't wait to get them.

Got some 2400mhz kingston coming next week too, so I'll probably keep them in reserve.

Looks like I'll be selling the sammy greens then!!
 
Me either :( I've either been hit by droop, memory or mid-build issues!!

2400mhz in, booted first time of asking at 2400mhz, left SA and VTT on auto, SA is auto at 1.35v and VTT at 1.25v. So I'll try work those down at a later date. Changed one timing and that was taking them down from 11-13-11-2T to 11-13-11-1T. I'll fiddle with the rest later and still have a g.skill kit to come!!

But this just about confirms it, Samsung Green + MSI = nope.
 
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