*** Official Clevo P870DM2/P870DM3 (Sager NP9873/NP9872) Owner's Lounge! - The Phoenix 2 is here! **

After all the "iz sew lowd!!!111oneeleven" reviews on the web, I was very pleasantly surprised to see how silent the machine really runs. Of course that wasn't until after I mounted the correct heat sink and applied Gelid Extreme in the process. Ex-factory, running on the singe-fan 1070 heatsink they accidentally sent it with, my Clevo ran unbearably loud at max speed almost all the time the GPU was taxed, so at first I feared the reviews were actually understated . Thankfully I noticed the mistake soon enough.

 

Got my machine! Set it up during lunch! But was wondering...I've installed my 3000MHz G.skill ram and noticed this:




The RAM isn't running at the full 3000MHz (i.e. about 1500MHz in single-channel). Other P870DM3 owners, do you know what settings in the bios I need to manipulate to get it to run full capacity? Or a link to how do it? Thanks!

 

You might need to go into the BIOS and set the memory profile to XMP.
before you do that, strongly suggest a CMOS/NVRAM reset, Mr. Fox mentioned somewhere the EC is notorious for not clearing the old RAM settings.

 

Hi i'm new to this forum and new to gaming laptops. I enjoy getting so much information from people who really know their stuff and shares it with "noob" people like me, hehe.

I decided to order my np9873-s single gtx1080 last month and i will be able to use it once i get home (i am on a business trip). I would like to ask here if any of you have information regarding the gtx 1080 failure rate. I have been searching for this issue on the web and i found many dead gtx1080.

 

This is because your CPU hit 3.4GHz minimum as opposed to 4GHz minimum. HWiNFO64 says it right there. Combined score will drop without a CPU feeding it, of course. You should try to get your CPU to keep max clocks; though I don't know why it didn't in the first place.

Check if CPU-Z and HWiNFO64 sensors mode say 1500MHz. My RAM for example runs at 1600MHz with a 1.33x memory clock, for 2133MHz. Windows reads the RAM at 1600 though it's actually at 2133. Not saying this is your problem, and XMP might need to be used, but it might be that 1200MHz * 1.25 is a thing for you. I don't know, I don't have one of these to check yet. Just my thoughts.

 

1500mhz = 3000Mhz DDR

7.5x 100 for 750mhz = 1500Mhz would be VERY strange indeed (no memory defaults to this).

 

Ask me wen you get it, so I can help you more in detail... tose settings are te max you can do with 1080 GPU and to still be able to render any video (Fhd / 60 fps - 4k doesn't render with this setting)

The image is subjectively at best quality for me, and you'll most probab;ly love it!

1080 can pull a bit more on some videos, but it won't work with all videos at FHD.

 

Makes sense the crippled EC strikes again on the new model too. Lol, hello @Prema

Sent from my LG-H918 using Tapatalk

 

ill PM you and help you step by step with overclocking since you are part of the EVOC team

 

AT's DM2 review is so dumb, I don't blame them but the FS GPU scores are bone stock and low for that job Also they only mention Burr-brown DAC, while ESS Sabre is also in the new Clevo refresh.

Still It's good, people should know that these beasts exist out of their Shiny BGA trash.

 

Yes, I can see the horizontal lines. So it is not just me seeing it. Otherwise the panel is very nice. I wonder if the lines are a result of them expanding the viewing angles on this TN panel.

Horizontal views are good (not as good as an IPS panel) but vertical views suck.

 

It's funny, that same anandtech review claims the 1440p is AHVA... why does every place have to get things wrong

 

As the reviewer stated, the DTR isn't marketed to guys like him. That means he doesn't have to do extensive research into the product I guess, hahaha. The real fun from that review is the comments thus far. One comment asked of the P870DM2
"DTR or overspeced (overspect ?) AIO?"

Here's a comment from an uninformed gent

"Clevo is one of the few laptop makers that is in the DTR market"
Not really true. Dell, HP, and Lenovo all make laptops in the 15 to 17 inch size with quad core CPU's, loads of RAM, NVMe drives etc. They are lighter, less expensive (generally speaking) and with better battery life. Of course the specs you have are saying they are using desktop CPU's instead of somthing like the i7-6700HQ, an actual quad core mobile CPU as used in the others. As workstation focused machines they also tend to use the Quadro GPU's rather than the gaming focused. But it doesn't take too much looking to find DTR class laptops."

 

Thank you phoenix i really appreciate that.

 

Something definitely is going on. On one 1080, my Firestrike is over 16,600. With SLI, my Firestrike is only 20,000. The CPU is acting strange. I did a reinstall of Win10 and I have the P870DM-G .50 CCC installed. However, I do think Sager installed the latest version of CCC before.

 

Probably because they are pushing the refresh rate to the limits.

 

I think it is something that most users can live with. If you look for them, you'll see the lines. But you don't notice them in games, or videos, only static parts like Win10 toolbar, browser and etc. I'll take a photo to see if I can capture what I'm talking about.

I will be honest though with everyone. It might be a dealbreaker for those that are obsessed with tiny details. Perhaps a firmware update could fix it.

 

Its the cpu throttling by the EC when power output is high in sli mode just like the dm1 did. Prema and Mr. Fox will address it don't worry.

Sent from my LG-H918 using Tapatalk

 

We talking about the 1440p 120Hz panel? The B173QTN01.0?

 

Yes sir. They say a picture is worth a thousand words, so here's a closeup view of what I'm talking about.

http://imgur.com/a/3Fwzh

It's only visible on solid, static colors. I have played a few games, watched some videos and the screen is amazing during those activities.

 

Aw man that's just the bad pixel density / pixel pitch.
I'm surprised it so bad for a 1440p display.
I can barely see any pixels on my 144hz 27 inch monitor.

 

That's pretty terrible. I'll look out for that if I ever see one. I might be able to see one soon, which I'll be eternally grateful to do =D.

 

I knew I should have stayed with the 4K display.

 

Finally am getting my DM3 delivered in the morning. A little disappointed to hear about the lines on the 1440p screen. Hopefully it isn't that noticeable. I did get the pixel perfect guarantee. My order had to be redone for various reasons, and Donald informed me that the guarantee was no longer available for the 1440p screen, but that I would still get it since I selected it when I originally placed the order. I wonder if this "lines" issue is why it's no longer available. The guarantee is still available for the 1080 and 4K screens. And other resellers still offer it for the 1440. Despite this, I'm still extremely excited for the new laptop. Can't wait to test this beast out.

 

I was thinking the same thing. That or the 1080. But the 1080 has no g sync and I really wanted a higher resolution, and the 4K is only 60hz and will be too demanding even for 1080 SLI in the near future, so the 1440 sounded like the perfect middle ground. I'll have to see how I feel about it in the morning.

 

I'm guessing the short supply of the screens is the reason. You need excess inventory to be able to guarantee no dead pixels.

 

Good point. Makes more sense.

 

Can you explain this a bit more? What would higher refresh rate have to do with the horizontal lines, or the vertical viewing angle? Not sure which one you're talking about.

 

Well when you push a panel to its limits, there can be different types artifacts.
For example on my BenQ 2411Z, at 144Hz, when i would enable high amounts of motion blue reduction, it would start getting grainy, or start getting noisy. Sometimes even vertical lines.
Something similar with my LG 75hz panel that came with my P870DM-G, beyond 105Hz it would become blocky and might some times even black artifacts.

But from the picture it just seems like, thats how the panel is. The pixel pith seems to be rather low.

This is what my ASUS 144Hz 27 inch 1440p IPS monitor looks like up close :

Spoiler: Upclose

On my 4k Panel that is right now installed in the laptop, the pixel are very difficult to see. And considering this is a 27 inch monitor, the pixel density / pixel pitch on the 17 inch 1440 panel should be way better.

 

What is seen can not be unseen now on my monitor. I don't really see it a few feet away, but sitting up close, oh my. Well then.

 

Lucky you, i was told that mine was diagnosed with a frozen panel so they are waiting for the next lot to ship the laptop. Nevertheless i ma glad that this issue was caught. I dont really mind the wait.

Regarding the horizontal lines, can you or @Rage Set take photo of this screen and some other screen where you dont see these lines at the same distance so that we can compare side by side.
As somebody who has interest in projectors, i am thinking these lines are something like what we call "screen door effect", but it happens in projectors for reasons that should not be present in an LCD screen.

 

Thanks for the response/clarification. So would it be that a sub par manufacturing process results in poor pixel pitch? Or maybe in order to have 120hz refresh on such a thin 1440 laptop screen, they have to make concessions on the pixel pitch? Sorry I'm not an expert at all when it come down to how LCDs are made or what leads to these results. If there's a 1440 screen on any Alienware, MSI, ASUS, I'd be curious to see if they have similar issues.

I can try doing this tomorrow once I get the new laptop. Can compare it to the 1080p 90% NTSC high color gamut screen on my p170em, which I've always felt looks pretty good.

 

Im a bit disheartened to read about the issue with the 3k 120hz panel. I just ordered my laptop a few days ago with that panel, I hope i dont get buyers remorse. I will watch to see what other say about it.​

 

It's a little bit nasty . I wonder if I would have noticed it had it not been pointed out, and if panels will vary. However, after seeing this I don't think it's all that bad. By the looks of the picture you have to zoom in or get in pretty close to notice it.

 

I was able to spend some time with my beloved DM3 and I am still impressed to play for extended periods of VR and only hitting 65c +/-, but as everyone is mentioning the crazy lines in the panel and stuff like this does drive me crazy. I have taken some high resolution images with my D750 to show these lines in the raw, now please remember everyone this is not to start a bad wrap for the 1440p or cause a big vendor issues because it really has several advantages. This can be taken out of context so please don't turn it into a situation where 10 are things right and 1 thing is wrong and the 1 wrong is what everyone notices , this 1 thing will affect some and not others as its a give and take situation. NEXT PLEASE UNDERSTAND I don't want this to be a lash for any of the vendors and personnel that worked hard to deliver the new release of this hardware.

With that being said, the panel is growing on me. There are scaling issues as we all know in W10 this is nothing new, but the panel is very bright, the viewing angles are as good as I expected, the refresh rate is very nice with no artifacts at 120hz, its very sharp.

Now the one bad thing, and remember these pictures are very sharp and high res so they make it look worse than it is. I can only notice it if I am up close but you know its not the soft smooth 1080 or the ultra sharp 2160, I think with 1440 to achieve the high frame rate there was a give and take.

Normal view


Close up (Notice the lighter horizontal lines separating the color) This is only seen on a medium color, not white or black but colors in middle contrast.

 

That's interesting... In some places it looks like only 2 out of every 3 vertical pixel have the same brightness, with the 3rd having a much higher brightness. Have you tried varying the refresh rate from 120Hz down to something lower to see if it still exists? Not sure why that would affect it, but I guess anything is possible

 

I have tested low refresh rates and the result is the same unfortunately.

 

Can your camera take a "super close"/cropped shot to better see the pixels? I was able to get this with my Galaxy S7 on my 15" Dell 1080P monitor...

 

This looks pretty bad. I am really surprised to see this with such a high DPI screen. Now if someone could compare it with the 4k / 1080 screen.

 

A 2-1 repeated banding makes me suspect either spatial or chromatic undersampling between the controller and the panel.

 

Yea I was wondering the same if it may possibly just be some firmware glitch that could be "easy" to update later down the road... Hopefully it's not too noticeable from "normal" viewing distances

 

Here's a screenshot of the 1080p 120hz (B173HAN01.2) screen for comparison


Sorry, I do not have a better camera

 

Can you elaborate it further for us mere mortals?

 

Say your LCD is getting 8 bits per channel colors from your GPU but the panel only has 6. This would mean that four distinct colors map to only one displayed color. If a region falls between displayable colors, you can fake a higher color resolution by having some pixels be the color above and some the color below so that your eye averages them together, but at the expense of artifacting if you look closely. Spatial undersampling would be feeding the panel with 1080p, which would account for the 2:1 banding ratio but is otherwise highly unlikely because I doubt they could advertise it as 1440p and there's no reason to do so.

 

Hi guys I'd update my home laptop series and pick p870DM3. Now I'm in love with 4K display 60hz G-sync and the 1080 SLI config. Is possible to adjust the frequency to 75Hz at least? the display would allow this? thanks guys

 

No, 62-63 is the max.

 

Sorry I've been off the forums a bit. Been busy with traveling for work. Yes this is exactly what I thought of when I first saw the screen. It's not a deal breaker for me, but I was a bit sad nonetheless.

Sent from my SM-G935V using Tapatalk

 

Yes each Hz is the same bandwidth increase as 4Hz at 1080p so each Hz is harder to attain.

 

Like I previously posted, the majority of users who get this screen will not notice it. If you sit a foot or more away from the screen, you won't notice it. On a rating scale of 1 to 10, I would give this panel a solid 7 or 7.25 on a granular scale. It is one of the better TN panels I've come across.

Remember, this panel was built for speed. If I had to make my choice all over again, between the FHD 120hz 25ms, 1440p 120hz 5ms and 4K 60hz panels, I would still pick this one. I experience no ghosting whatsoever and the viewing angles are good. I even dare say they are nearly as good as the views on the FHD screen on my P870DM-G. You will only have a problem if you want a higher color gamut.

 

thanks man, I was hoping there would have been some trick but I see it's not an available choice.. I will follow then the 3K 120 Hz way and your impressions about it. About the p870dm3 cpu it's a pity we don't have the choice for a better unit (the i7 7700k, when it will land, won't be a big step forward imo) like a 6-core one