Clevo P870DM-G won't boot after swapping ram

Hi everyone. I just got my clevo p870dm-g this wednesday (through Xidax computers, they call it the XM-11 SS) Today my ram came 64GB (4x16) It's the Gskill ripjaws series 64GB 260 pin sodimm variant. I bought them off newegg.

So on and so I turned off my computer and removed the ram it came with and installed them only to find afterwards my computer won't boot even into the bios. I'll press the power button and the LEDs come on and after some moments I'll hear the fans whirl intensely then stop and the machine turns itself off.

The ram in question is the 2666mhz variant ( http://www.newegg.com/Product/Product.aspx?Item=N82E16820232170 )but I read on eurocom the laptop supports up to that speed. I re-installed my old ram and it still won't boot and I even removed the battery. Please help if you've dealt with this sort of thing before. What should my next step be?

Thanks.

edit: Having trouble embedding since I'm still relatively new to this place but below is a link to a picture of one of the new ram modules I installed just in case the other link doesn't work properly in the future:

https://www.flickr.com/photos/137721462@N06/23601762451/in/dateposted-public/

 

You need to do a NVRAM reset... @Mr. Fox knows how to do this in P870..

 

The stock bios does not support 2666MHz speeds AFAIK. You could try mismatching the sticks (put one old and one new stick in) to prod it back to booting.

 

NVRAM reset? What's that exactly? Sorry, I'm still learning all the special terms and methodology here on these forums myself. Would you know where to start? Or should I just send him Mr. Fox a message? Thanks.

 

Thanks. I'll definitely try that. I've taken the battery out and the everything so hopefully trying that method from that point helps. Also I've been following the main thread for the 870dm for a while now and know that Prema is working on a bios mod. Will he be supporting higher-end ram sticks so I can just hold on to these until they're supported? Thank you.

 

Yes I believe that is something he is building in.

 

Yes he will be supporting it so hold on to these sticks if you want to..

Sent from my LG-H811 using Tapatalk

 

Awesome. Considering how expensive these things were. Also tried your swapping method and it still didn't work sadly. Any other suggestions please?

 

Great. If only the mod was ready sooner. XD Then I probably wouldn't be going through this little hiccup right about now, haha. So on and so, any other "hardware" based fixes I should try?

 

@Akaraah - just saw your message on my YouTube channel. No way I know of to make these sticks work, but 2666 support will be possible with the @Prema BIOS mod using manual memory settings. Booting 2666 sticks will be hit or miss because the SPD table is already full with no room for more SPD profiles. It may work randomly with some sticks and not with others.

Using the Prema BIOS you can manually program 2400 settings with slower memory installed, shut down and boot with slower settings with the 2666 sticks in place, then use the BIOS to change to manual 2666 settings. But it is not plug and play, and not possible with the stock BIOS since Clevo hid the menus to keep you from using your machine the way you choose to use it. Thank God for talent like Prema to right all of the wrongs.

 

Heya. Lol, no worries that was a while ago so you didn't have to reply if you were still busy what with work, personal life and testing prema bios but I appreciate the diligence.

Funny enough, I sent my old phoenix back and got my replacement yesterday. And I've actually been able to boot the ram in it, all 4 of the 16GB 2666MHz modules... It's crazy but I guess my now retired laptop just had a faulty motherboard or some other underpinning issue. I can even use CPU-Z to share my config if you'd like. And speaking on Prema bios... I see in the main phoenix thread the older version of his vbios has been released for the clevo p870dm and other DM models. Can't wait for his new/updated bios to release for the rest of us!!! I'm hoping it's released/complete by Christmas but I know that's a stretch even though you're aiding with the final stages.

I went ahead and attached a text file with the report from cpu-z since for some reason it won't let me upload the validation online. Once the bios is available I can take it further.

 

2666mhz is beyond the intel spec, not all chips will be able to run it most likely.

 

Hi Akaraah. Just want to confirm. The 2666MHz ram that you bought from Newegg does work on your P870DM-G right? Planning to buy the 64GB kit for P750DM-G which has the same Z170 chipset as the P870DM-G. Even though it does not support 2666MHz, it will downclock itself and run at stock 2133 MHz right?

 

It's supposed to do this, but you still run a greater risk of instability as opposed to going with the max supported spec. We ran into a lot of issues with trying to use faster RAM than what the last generation of the P570WM supported; I don't recommend anyone do the same.

 

so did it work eventually? if so, how to make it work? Thanks in advance.

 

Heya. They didn't work in my old p870dm which had to be RMAed' but in my replacement they worked perfectly fine and now I have all 64GB at 2666MHz.

The first laptop seemed to have other underlying issues, but in my replacement to make sure things worked fine I replaced one RAM stick at a time (switching the stock 32GB with the 64GB) and hard-reset each time until all 4 modules were in.

I'm on my third p870dm because the second had defective 980m SLI and they refused to swap just the GPUs. The resellers did a 24 hour burn-in test using my 2666MHz RAM in the replacement and they said it went without a hitch and even now there are no stability issues with the RAM (though even the same laptop model may behave differently, I know the RAM is fine, just be sure your BIOS is up-to-date)

Hope I helped.

Sent from my SM-G920P using Tapatalk

 

The faster RAM did not work. We had reports of BSODs ad nauseam, so we pulled it from our configuration options for new orders and had to work through downgrading the modules on a handful of systems that came back for RMA.

 

Hi. Thanks for the reply. May I know are you using the stock Clevo BIOS that support only 2133MHz? And what do you mean by hard-reset each time you replace one module of the ram sticks?

 

Heya. Yep, I'm using stock (though I did update to the latest version from a link I found from the official clevo p870dm/phoenix thread a while back). And by hard-reset I mean turning the lappy completely-off and unplugging the charger if available (and removing the battery if you want as an extra precaution but it wasn't necessary in my case).

Afterwards I'd switch out ONE module at a time and then restarted the computer to make sure the laptop would boot and would recognize the RAM in the system info via control panel. For specifics check or download (SPD/timings, CAS Latency, etc.) CPU-Z if you don't ready have it.

Altogether I did 4 hard-resets because I reset upon application of each RAM stick if you understand what I mean.

Sent from my SM-G920P using Tapatalk

 

One thing is the memory controller may be able to cope with higher single channel speeds vs dual channel.

 

Hi Akaraah. Thanks for the reply. Do you mind doing me a favour? Could you use HWiNFO64 (can be downloaded, just google it) to check the Maximum Supported Memory Clock? Mine current running at 1066MHz (which translates to 2133MHz) but the stated maximum is 1300MHz. Could you check yours? Thanks in advance.

Something that looks like this.

 

View attachment 131198

Here you go! As you can see from the first screenshot the base speed while the program was running for the RAM modules is 1329.7MHz when relatively idle so it is a bit faster than the max supported of 1300MHz. Hope I helped clarify anything else you wanted to know!




View attachment 131200

 

I see. Thank you so much for the help. Will report back after I get my ram.

 

Could be, but from what I can tell it's still in dual channel mode when I looked through CPU-Z and Thaiphoon Burner...

 

Not a problem! Let me know the results of your conquest once you have received and had time to test!

 

It's more when diagnosing a non boot with faster than rated memory that this can be the cause if it works with a single stick in either slot.

 

I see. In my first phoenix it wouldn't start even when I tried that. I suppose when the machine works that way it should what you mentioned is easily possible.

 

@aazznn

Heya. Figured I'd check back to see if you've received your RAM yet and had a chance to test since today would mark the 8th day since you would have bought the RAM if everything went as planned. If you've already received, how many gigs and assuming its the same speed as mine, were you able to install with no issues?

If you're interested, I'll also be receiving my 40 pin EDP cable today so I'll be installing my 4K screen for my p870dm-g tonight. If all goes perfectly I'll finally be able to adjust my signature to having the 4K panel rather than "soon". More than likely I'll make a thread about my venture tonight.

 

Hi Akaraah,

I have just received my G.Skill DDR4 SO DIMMS today. I have bought the latest version which has a rated speed of 2800 MHz. This is the product link in Newegg http://www.newegg.com/global/sg/Product/Product.aspx?Item=N82E16820232172. I have removed all my previous RAM modules at once and replaced them with 4 new G.Skill modules at once. The P750DM(-G) booted up into Windows with no problem. However, after a check using HWiNFO64, the G.Skill modules were running at 2400 MHz instead of the rated 2800 MHz. A closer inspection using HWiNFO64 revealed that the rated 2800 MHz is only supported through Intel XMP. Hence, I tried to adjust the RAM speed using Intel XTU but the laptop failed to boot which forced me to remove the BIOS battery to hard reset the BIOS by breaking the BIOS battery casing on the motherboard. After a BIOS hard reset, the laptop booted back into Windows at a speed of 2400 MHz. For your information, the 2800 MHz ram stick timing table only supports speeds of 1067 MHz, 1066 MHz, 1200 MHz and 1400 MHz ([email protected]). It does not have speed for 1333 MHz like the 2666 MHz stick that you have. I think all Clevo laptops based on Z170 chipset only support a maximum supported memory speed of 1300 MHz natively as shown by HWiNFO64. Hence, maybe the motherboard adjusted itself slightly to support 1333 MHz speed for the ram module in your case. I have attached a few screenshots below for reference.

 

If you want to force the bios to reset the memory settings put in a stick of different rated ram, this usually makes it set the speed to the lowest of the set and kick back into life.

 

Hi there,

I see. However, I already hard reset the BIOS by breaking the BIOS battery case on the motherboard.

 

I understand that, but if others are reading then they can avoid that.

 

Hi guys,

It seems that I am able to set the XMP profile manually in Intel XTU and boot into Windows at 2800 MHz with 4x16 GB ram modules in dual-channel mode. However, in XTU, I am not sure what values to set for tRRD, tRTP and tWTR. Hence, I increased the tRRD to 7 from 4 and left the other two parameters at their default values.

 

If you look at the xmp profile in software like thaiphoon burner it should give you a breakdown of the rated speeds.

 

Hi Meaker@Sager,

Do you know how to remove the BIOS CMOS battery without breaking the battery casing on the motherboard for current Clevo laptop like P870DM/P7XXDM? As far as I know, in older Clevo laptop, the CMOS battery can be removed without breaking anything.

 

Hi Meaker@Sager,

I have tried that but the tRTP and tWTR values are no where to be found.

 

Push the battery towards the lip that covers it, it will press in, then lever the battery up at the end you are pushing it in, it should come up at an angle and allow it to slide forward at the angle.

The usual rule applies to working in a notebook, if you are applying force you are likely doing it wrong.

 

When in doubt just use an Irish screwdriver:

Spoiler

 

As for the ram, so long as your setting is stable then you are good to roll, they wont impact performance that much.

 

So what you did was to boot at 2400 and then set the xmp via XTU right? Did the settings stick after you have removed XTU?

 

This stuff isn't suppose to be rocket science but the way these beasts are built seriously you can make a topic on something "simple" and go on for months (some of the internals in my laptop might remind you of rocket science lol) so I'm not trolling its just crazy....love it all (including the years of research before I dropped all my hard saved money, I unfortunately don't have an extra 5 grand to drop on laptops every couple of months but eh I love mine it will last me 6-10 yrs I promise it will....its still as clean inside as it was when it was brand new from simply having a clean house with very little dust (my dad has had a single lung transplant and last year a double lung transplant, never smoked anything in his entire life work'd his ass off everyday then some big guy decided it was cheaper to use chemicals in the factor on some of the metals they were working with, which we later found out were illegal we sued this place is still owned by a Senator) so I HAVE to keep a very clean healthy environment which everyone should but if there is no dust your laptop doesn't have anything to suck up inside to make it dirty ....sorry had my dad on my mind had to take him back to OSU Wednesday this 2nd double lung transplant has been crazy I don't even care my dad is alive, I feel blessed everyday.