Asus Z87 Gryphon with 4 dimm = dram led error

• I do have to use XMP mode to make the mobo realize the sticks are 1600 and not 1333.
• I have tried disabling XMP mode and manually setting the speeds to 1333 as this was recommended. This gives a slightly different result, instead of a dram error light, the computer will just cycle every second, on and off.
• I've tried fiddling with random settings in Bios, but nothing that worked or seemed significant.

ryanissamson said:

I'm a bit frazzled.

I'm using an Asus Z87 Gryphon with an i7-4770K. The ram is 4X 8GB 1600MHz Corsair Vengeance CMZ32GX3M4X1600C10.

I have worked with Asus, Corsair, and Intel explaining the issue and have RMA'd all three parts and am still getting the same issue.

When using ANY stick of ram in ANY combination in A1 and A2 the computer works fine. I can use 1 or 2. All 4 sticks have been tested alone and in a pair. If slots B1 and B2 are used in any combination or by themselves the computer starts with the red dram error LED.

This hasn't always been the case, the computer recognized 32GB and worked fine for a while. I can't remember when it stopped working or why. I do know that I've removed the Graphics card and any connected USB devices and the same thing happens.

ASUS swears that the board I sent in was fine. They say that it is a "synchronization" issue with the ram. Of course, Corsair swears that this is extremely unlikely given that they've also replaced the ram. Corsair also says as it's an approved ram for this mobo that there shouldn't be any issues at all. The CPU is new and was just installed so there aren't any bent pin issues.

I'm trying to think of any other relevant info.

• I do have to use XMP mode to make the mobo realize the sticks are 1600 and not 1333.
• I have tried disabling XMP mode and manually setting the speeds to 1333 as this was recommended. This gives a slightly different result, instead of a dram error light, the computer will just cycle every second, on and off.
• I've tried fiddling with random settings in Bios, but nothing that worked or seemed significant.

I'm at a dead end of sorts. Asus and Corsair won't assist me further and claim it's the other company's error. I still think something is just off in settings, but I don't know.

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WonkeyDonkey said:

I've seen exactly the same issues as you on this board. Asus stated in a message to their support guys that I should RMA the board back to the retailer straight away, which I have done. That was without even suggesting any kind of trouble-shooting. I got the feeling that Asus were aware of this issue, since normally they go through the routine of enabling/disabling XMP, reloading UEFI defaults, all the usual stuff.

The potential problem of course is that the retailer may simply send out another board that has come from the same batch and therefore may have exactly the same issue.

I tried 2 different sets of corsair ram, as well as a set of g.skill ram and also a set of kingston ram too. All with exactly the same results. 2 of the slots worked fine, anything at all in either of the other slots and the board locks up or goes into a fast reboot loop, just as you described.

Not sure what to tell you but I'll post back when I get my replacement.

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ryanissamson said:

Thanks for the response. I'm frustrated that I let it go this long (6 months or so) without taking action. Asus has said that they will only send replacements for the mobo and provide a different model or refund. I don't mind trying another set of ram, I'll have to buy it to test though. A different set of ram as a fix would be BS as Corsair Vengeance is pretty standard stuff. It's a shame though because I've enjoyed the board so far and thought I was in the clear reading about all of the GB mobo ram issues. Apparently not.

Let me know if you find anything out and anyone else feel free to comment if you have any insight.

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WonkeyDonkey said:

I'll be testing all four sets of ram in the replacement board. They all work in several other boards i have here so im pretty sure the ram is not faulty in any way.

To be honest though, I think most manufacturers have had issues with Haswell and memory, especially when maxing out with 32Gb.

Is your board the C2 revision or earlier one ?

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ryanissamson said:

Cool, let me know what results you get.

I don't know if I have the C2 revision, how would I find out?

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ryanissamson said:

Dang, I just checked, I got the C1 model.

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ryanissamson said:

Alright, well that's comforting at least. Have you tested any other sticks yet?

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