Asus X99 Deluxe wont run G.Skill memory at XMP for s**t

[solomonshv]

i've never had issues like this before. the motherboard will not boot with the memory at XMP settings. the derailed specs are in the signature.

it seems like the motherboard only reads the timings from the memory module and not the voltages. BIOS is up to date

[Chino]

What QCODE do you see on the DEBUG LED when your system fails to post?

[X-ROG]

3000MHz requires a significant overclock remember, and that's not guaranteed.
Did you try to apply memory voltages manually?

[ssateneth]

That CPU is only specced for 2133MHz max for the RAM. Anything higher is not guaranteed to work.
Yes, I know that's a BS answer, but it's the truth.

Before you think the RAM is junk (I have G.SKILL 32GB 3000MHz CL15 kit), try individual sticks first to see if the XMP takes and is stable. No idea if the deluxe allows higher RAM speeds without BCLK overclock, but may be able to set the BCLK to 100 and RAM to 3000MHz (my RVE can) while preserving XMP timings.

If you get single stick to boot, try 2.. then 3.. then finally 4.. may also need voltage increase to system agent (memory controller). default is 0.8v. It can take up to 1.3v, but just tweak up from 0.8v in 0.05v increments if the SA is what is limiting the ram. I'm able to run my kit at XMP timings, command rate of 1T with 1.05v right now, can probably do it with less. I haven't done much tweaking yet as I'm working out a more reliable thermal solution for CPU OC.

[SkiMountaineer]

Hey there, I'm on the X99-E WS board with a four-way G-Skill kit (4 x 4GB --> 16GB) rated 3200MHz. I can boot at 3200MHz but one of my four sticks fails to report under any settings and voltage I've tried so far. At 3000 I still lose 1 stick sometimes even at 1.5 volts and SA at 1.168v. And this is with relaxed timings 17-18-18-36-2T. I have not even tried to go below 16 yet, but I will eventually work on it. Currently can hit the XMP profile if I keep the memory speed down at 2666, but that's so far below spec. That remains true no matter how low or high I o/c my cpu and cache.

What's a little suspicious is that it seems to almost always be slot B1 that drops out if one stick fails to pass POST/training. However, at some combinations of settings I can lose 2 sticks, and when I do it's A1+C1 instead while B1 is ok. Weird. I tried rotating sticks among A1-B1-C1-D1 slots and there was no rotation that really made any difference. I started thinking maybe my B1 slot is defective or maybe whatever drives it in the IMC is not as good as the rest. I don't really know what next to test to get over this since I've already reached 1.5v on the RAM and don't wish to try any higher. I guess I could actually try *lower* eventual-VDIMM and maybe just keep 1.5 initial to pass POST, but I would not expect that to make a difference in how many sticks show up.

[Chino]

heated snail wrote:
Hey there, I'm on the X99-E WS board with a four-way G-Skill kit (4 x 4GB --> 16GB) rated 3200MHz. I can boot at 3200MHz but one of my four sticks fails to report under any settings and voltage I've tried so far. At 3000 I still lose 1 stick sometimes even at 1.5 volts and SA at 1.168v. And this is with relaxed timings 17-18-18-36-2T. I have not even tried to go below 16 yet, but I will eventually work on it. Currently can hit the XMP profile if I keep the memory speed down at 2666, but that's so far below spec. That remains true no matter how low or high I o/c my cpu and cache.

What's a little suspicious is that it seems to almost always be slot B1 that drops out if one stick fails to pass POST/training. However, at some combinations of settings I can lose 2 sticks, and when I do it's A1+C1 instead while B1 is ok. Weird. I tried rotating sticks among A1-B1-C1-D1 slots and there was no rotation that really made any difference. I started thinking maybe my B1 slot is defective or maybe whatever drives it in the IMC is not as good as the rest. I don't really know what next to test to get over this since I've already reached 1.5v on the RAM and don't wish to try any higher. I guess I could actually try *lower* eventual-VDIMM and maybe just keep 1.5 initial to pass POST, but I would not expect that to make a difference in how many sticks show up.

List your complete system specifications for me.

[Mosc_007]

Most are struggling to get a HW-E CPU to run 3000 Ram. Don't see much hope for 3200 unless you have a Golden CPU.


Charles

[Praz]

Hello

I don't have a golden CPU. Seems most users have better luck with Corsair LPX.

[Mosc_007]

Good to see it running at that speed. Think you are the first one I have seen posted running at that speed.

Could be right about Corsair working. That is my first choice for ram but in Aus it wasn't available so I had to get 2400 Gskill. I had some Kingston many years ago that wouldn't run at its rated speed. I emailed them and they actually admitted they knew about it and told me to return it for a refund. About 6 months later I got another email from them telling me their new ram now runs at its rated speed. I do admire their honesty. Makes up for the crappy product.


Charles

[Praz]

Hello

G.Skill is normally my first choice but at this time seems to be the wrong choice. Charles, owner of XS, has a thread testing both Corsair and G.Skill. He ran only benchmarks but found G.Skill didn't want to go past their rated speeds or timings. Users in the ASUS threads at OCN have found similar results. These results are all on ASUS motherboards. Other brands struggle at 2800 and above regardless of the memory used.