*** Official Clevo P75xDM and P77xDM/Sager NP9758-G and NP9778-G "Batman 2.0" Owner's Lounge ***

i actually did a small test of comparing my SM951 m.2 NVME via my Sandisk Extreme Pro 2.5" SATA which i use for my main games. I did it with Guild Wars 2 cause @Omnomberry asked me if i could do a comparison. Used different characters cause they were parked at different locations.

I restarted the NB after every test to be sure everything is somehow wiped from cache which could lead to wrong values. I waited exactly 10 seconds in the character selection menu and pressed "enter" to login which of course started the countdown.

Sandisk Extreme Pro -> Warrior login to Lionsarch sec 10.48
SM951 -> Warrior login to Lionsarch sec 8.87

Sandisk Pro -> Necro Divinitys Reach sec 8.40
SM951 -> Necro Divinitys Reach sec 7.28

Sandisk Pro -> Ele Caledon Forest sec 7.06
SM951 -> Ele Caledon Forest sec 6.37

About 14% Difference

so as you can see in this MMO it was a very minor improvement about loading times, i think we need more 4k read performance to really load faster.

 

Based on what you said i guess its does not justify the x2 in price (atleast for me).

 

I ordered my 770dmg with the 250gb samsung 850 ssd i am guessing the os is installed in there already(hopefully,unless i am wrong LOL). Alright thanks! I will get the 500gb and maybe later ill add a 1-2tb 2.5 inch mechanical drive. How many m.2 can i use at the same timw on my machine?

 

if i'm not wrong i think there are 2 m.2 slots both(?) SATA/PCI-E compatible, i think only the predecessor the P7xxZM had 1x m.2 which was PCI-E compatible.

 

Sounds like a great machine you've got there. I'm sure they'll install the OS on the SSD, I hadn't realised you'd ordered it with the SSD already. Unless it explicitly states otherwise I'd expect it to be the 2.5" model leaving you with one 2.5" bay for a mechanical later and the two M.2 slots.

You can use both M.2 at the same time. Clevo states they are both PCI-E/SATA compatible.
Looking at the service manual you can use both at once at full speed x4 i.e the lanes aren't split between the two M.2 slots.

 

Thanks!hope i will love the system! Just ordered the 500gb evo m.2 so itll be ready when i arrive in the us

Also do you have any idea if the 230w power adapter for my system is enough? I read that the cpus power consumption is 83w and the gtx980m is at 122w. Total of 205 for both components alone.

 

You have that info on HTWingNut's review: http://forum.notebookreview.com/thr...gtx-980m-64gb-ram-review-by-htwingnut.783411/

 

230W is fine for stock, I use a pair of 500GB EVO drives in my own system and they have been rock solid for me

 

Except they do have to flow down a single x4 DMI pipe to the CPU. So you won't be able to tax both fully as far as sequential reads. Also have to keep in mind that x4 DMI has to carry usb/ethernet/wifi/etc.

 

That is what I thought initially though struggled to find the relevant info in the service manual and with the stock BIOS so locked down there's no information in there either. I'm sure you are correct though.


Just for my own curiosity and understanding would you be able to explain a bit further? I'd love to have a firmer understanding on this. I had a reasonable grasp when it was northbridge/southbridge but I haven't got my head around this yet.

I can see that Skylakes DMI 3.0 operates at x4 with total link speed of 3.93GB/s so I am curious how this is split between these components.
It's stated that (at the very least!) using one M.2 PCIE slot it will operate at x4. I understand no SSD can saturate that link currently, it's fair to assume in the future they will though. With this hypothetical drive would that x4 link then cause slow downs on USB 3, Ethernet etc while it is being fully utilised?
I didn't think DMI channels could be shared simultaneously, or is there some kind of multiplexing involved or is there another intermediary interface that I'm oblivious to?
How does the 40Gbit/s (5GB/s) thunderbolt port fit into this when all 16x PCIE lanes are straight to the MXM slot?

 

Anyone know whether HDMI port is 1.4 or 2.0?

 

You can find the exact spec in the service manual (has great full block diagrams and stuff).

In short, the northbridge got merged into the CPU itself and the southbridge has since been combined with a bunch of other stuff to create the PCH (for Intel at least). The purpose of the PCH is basically to talk to all of the "extra" stuff on the motherboard which isn't RAM or PCIE connected directly to the CPU. The PCH and CPU then communicate with DMI. It's important to note, that while DMI is "similar" to PCIE in the way it operates, it's not the same. Think of DMI as an encapsulation layer which can contain other things as well, like SATA/USB etc.

The trick here is to think of the PCH almost like a completely separate system (imagine another motherboard). The Skylake PCH has 20 PCIE3.0 lanes to talk with everything.
In the case of Z170 and what we're looking for, PCIE lanes 9->12 are connected to M.2 port 1, lanes 17->20 are connected to M.2 port 2. PCIE 13, 14, 15, 16 are connected to WLAN, eSATA, SATA1 and SATA2 respectively. PCIE lanes 1->4 go to Alpine Ridge (ie USB3.1/TB3), 5/6 appear to be unused and 7+8 are for lan and card reader (aw yiss, PCIE card reader instead of USB...for reasons?)

No singular SSD in M.2 form can exceed x4 so far. But that's not to say there aren't SSDs that don't. Have a look at the PM1725:
http://www.samsung.com/semiconductor/products/flash-storage/enterprise-ssd/MZPLK6T4HCJL?ia=832
6000MB/s sequential reads and 1million random read IOPS means it has to be on a x8 card.

The fact that DMI bottlenecks things is already well known (many have already tried RAID0 with 3 NVME drives and found the sequential speeds cap out). However, I haven't found anybody who has tested what actually happens when you begin taxing other DMI attached hardware.

This is precisely what DMI is for (it's basically a network so it can prioritise traffic etc) and hence why not the same as PCIE as mentioned above. It load shares everything, but doesn't possess enough bandwidth back to the CPU to have everything going full speed all at once. The most obvious example of this is RAID0 nvme drives.

The Alpine ridge chipset (TB3/USB3.1) is connected to the PCH with 4 PCIE lanes. As far as I can tell, everything except the DisplayPort 1.2 support runs via that PCIE connection. The Displayport itself is actually muxed off the DisplayPort1 from the MXM GPU (so your DP1 is actually shared with the Thunderbolt Displayport passthru).

To be honest, I have no idea why all 16 CPU PCIE lanes are channeled into the MXM slot given that a modern GPU doesn't really even tax 8 lanes. This may be an Intel thing though as they describe the CPU lanes as specifically for "GPU" in desktop systems. The P7X0 is essentially a "desktop" as far as hardware is concerned after all. It may also be allowing for future GPU development. Particularly, HBM could have a rather large impact on how quickly you need to get textures from our now super-fast SSDs/RAM to the GPU.

 

Hi everyone. I don't own this notebook but I'm seriously considering buying one. I intend to do a lot of gaming and video editing on it. I was wondering if anyone here has this model with the 4k screen and 970M and would recommend it for my purposes. I've read differing opinions that the 970M on this machine cannot handle gaming in 4K and people just scale down to 1080p to play their games. If this is true, should I just get a 1080p screen?

 

Yes

 

Thanks for taking the time for such a detailed and informative reply. +Rep.
It seems I tripped up with knowing there's a total of 20 PCIE lanes, 16 of which are GPU, I couldn't envisage the remaining 4 being split, yet still being able to offer x4 to a single M.2 slot while having other lanes for WiFi, card readers etc. Your explanation of DMI has really cleared that up. Thank you; envisioning as an encapsulation route brings that together.
I have looked at the Cougar Point circuit diagrams in the service manual, it was those that made me believe x4 could be offered to both M.2 slots as electrically they are both configured that way, and there's no mention of in there of the capabilities of DMI in there.

Anyway I won't further derail this thread.

On an entirely unrelated note.

Does anyone have any experience with an RMA through Clevo Germany (GoldenStar Computers). They've had my laptop a couple of days and I've not heard anything, even as much as acknowledgment of receiving it. Just wondering what sort of time span is typical and if I should expect contact from them or my reseller (Eurocom)?

 

Yeh it gets pretty confusing.
I suspect Intel were completely taken by surprise with how quickly PCIE got flooded with fast devices. USB3.1, Thunderbotl3 and NVME SSDs pretty much all went to market in a single year.

The real test will be when egpu enclosures actually arrive.

 

Thanks for the reply! Alright really confident with my purchase. My aunts gonna drop the payment before the weekends. Holy crap i am so excited. Hope this machine wont dissapoint


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You'll be really happy with the machine.

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Agreed, it should be a beast

 

Quick question, what's the oc value s need on the 980m to match performance of the 970 desktop card. Should that be enough for VR on the 750dm?(titles tuned for the 970, not necessarily long term VR)
EDIT: can the 970m achieve this as well?(values?)

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Also interested to know though i wont be picking the vr any time soon as it costs a pretty penny

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Is there some sort of guide or bible or glorious post about overclocking the P7x0DM?
I mean, most of us are rocking the same config: 6700K + 980m, are there a couple settings that have proven stability and performance?
Is Intel's XTU the way to go for all things overclocking? (For the CPU at least)
I've read a lot about undervolting and I think it's probably the way to go if you are not too serious about modding the heatsinks or IHS

Thanks!

By the way: I think I finnaly figured out what the hell was causing my random crashes on Windows start.
As I said a few pages ago in this thread, my P770DM-G was displaying nothing but a black screen and HDD activitiy when turning on. And because I had a new cooler base/USB hub (with keyboard and mouse connected) + USB DAC + Second monitor via DisplayPort I though that one of these would be the culprit.

I formated my PC and reinstalled Windows 10. I had a week with absolutely no issues. But sometimes when the PC woke up from sleeping a long time it would display a "Returning from Hibernation" message. I already have hybrid hibernation turned off thru the control panel so I figured I would input powercfg -h off into the console to fully disable it.

Boom! The crashes came back! PC wouldn't even turn on again without some major trouble....
powercfg -h on back in the console and everything is back to normal once more!
Turns out the P7x0DM really don't like anything to do with hybernation...

I'm on stock BIOS BTW, is this issue addressed in the new version?

 

Overclocking is a lottery, so there will be no magic figure for everyone (otherwise intel would set the clocks there).

 

Delid with liquid pro inside, gelid extreme outside.
My p750dm-g is rock stable and has proven to be by passing linx 0.6.4avx 20times with [email protected].
As meaker said, OC is lottery but now with stock bios you wont be able to OC well enough because power limit is locked at 53W.

This damn low power wont allow the CPU to hold the clock with heavy load when OCed. My p750dm-g with stock (but Korean Stock) bios has power limit lock too but luckily at 118w which allowed me to successfully OC 6700k at 4.5 with -75mv.

 

What bios can i install on it? So there is a possibility that it can brick as its not a vbios right?


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Vbios has nothing to do with CPU. Vbios is just video-bios.
I am talking about BIOS for MOBO.

There are many BIOSes for p750dm. I've tested clevo stock, XMG stock and Korean Hansung stock.
Both clevo and XMG allowed memory OC but long power limit is locked at 53W which is very low for 6700k. At stock clock 6700k will be okay but if you are planning to OC, 53W is too little.

On the other hand, Korean stock bios doesn't allow memory OC but the power limit is capped at 118W which I dont like too but at least this power allows my CPU to be OCed at 4.5 successfully at -75mv.
I preferred to have a OCed CPU /w non-OCed memory rather than non-OCed CPU /w OCed memory. That's why I chose to use Korean stock Bios.

 

@Meaker@Sager

I heard you work for Sager. That's cool!

Do you know the max power allowed on p750dm-g stock bios for Sager?
Is it also 53W or something?
And if you can, can you please tell me the version of HDMI? (1.4 or 2.0)
Thanks~!

 

Max power for what exactly?

HDMI 1.4b for the output.

 

Yah i knw it has nothing to do w cpu. So i am correct in assuming there is a chance we could brick the system if we update the bios or something? Had an aw15 and bricked it twice. Only on my 3rd try wasi able to get to a00 (best bios for fan profile)lol

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I'd have to agree. The speed difference is probably negligible in normal use, and the drive cannot sustain its speed with heavy use (thermal throttles itself)

 

Hi guys i have got p751DM for testing and have one question

When i oc i5 6600K to 4.4 ghz it works good in xtu bench, stress test and cinebench r15 but after running 3d mark firestrike it locks itself on stock 3.5 ghz on 4 cores in xtu while profile is set to 4.4 ghz...

Am sure there is any thortling all 4 in xtu are on 0.

Owner demanded windows 10 for testing
Anyone suspects what is going on?


Also i have tried to dind multipliers in bios but stock clevo is sparse

 

Have you got a download link for that BIOS? Are the menus (and installation) in english or korean?
Having the 6700K at 4.5Ghz with -75mV, how does the cooling system perform?

Thanks!

 

Set your Turbo Boost Power Max to 130W and same for Turbo Boost Short Power Max

Change Turbo Power Time Windows to 1 second

Set Processor Core ICC Max to 130A

 

That's normal solution for failed OC. But that doesn't work with current stock bios.
(Only Korean stock works that way, but capped at 118w and 123A)
We need prema!

 

The menu is on Enlgish.

http://sparq.co.kr/down/Clevo/bios/ex/ex5676g.exe

This is the link for the Bios.

http://www.monsterlabs.co.kr/bbs/bo...pd_no=&sfl=wr_subject&stx=ex56g&page=1&vmode=

This is "how to flash the bios" manual. As you can see in the picture, disable UEFI and boot to DOS mode with USB containing only the bios files.
Then press 1. Wait for some secs and the laptop will reboot. Press F7 to boot to DOS again and press 2.

Bios flashing is always with risk. No one is responsible for bricking so please do it at your own risk.

 

The temp will depends on several things.
Mine is delided with liquid pro inside and gelid extreme outside.
I've found the optimal lowest voltage by testing stability with linx 0.6.4avx and the voltage was -75mv for my 6700k.
The max CPU temp during 3dmark's "run primary tests" which also runs demos is about 83C with fan table "overclocked" and 77 with fan table "max".

 

I meant "Short boost power".
Thanks for the answer. Damn I thought it was 2.0

 

how much more battery time can you squeeze out of this system with undervolting the cpu and dgpu?

 

What app can you use to control fans? Hwinfo?


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Sadly it doesn't work. i would like to flash prema bios but this is shop sample.

 

You use Clevos HotKey app.

 

I dont use any special fan control utility. Just using clevo stock hotkey utility.
There are three fan tables (win10) which are automatic, overclocked and max.
I usually use "overclocked" fan table.

 

I recently bought p750dm-g
6700k
gtx980m
4K Samsung PLS
Kingston HyperX Impact 24GB
2 x Samsung SM951 on raid0

i overclocked to 4.5Mhz with XTU
is there anything with ATTO Disk Benchmark as i see the Write/Read getting low in 512k~48mb

 

Hi i have one question can you run 5min xtu stress test on 4.5 then firestrike and then again 5min xtu stress test?
with my i5 well xtu stress test 4.5 ghz is rock solid but during firestrike and later in xtu stress test cpu returns to stock frequencies while all settings are set to 4.5 ghz... without some korean or prema BIOS you probably will have same cpu behavior as me.

 

My frequencies remained at 4.5 on both stress test
CPU temp reach +90

 

The displayport to HDMI 2.0 adapter will work if that's needed.

 

Oops wrong thread. I'll just see myself out.

 

Th

Thx but still this is strange.
One last question where did you buy it (re-seller)?

 

hidevolution

 

Yes I can. I know what you mean.
I had similar problems.
I fixed it by not using XTU and using TS instead.