After today's security news it appears that getting the 9880H CPU and disabling HT might be a good strategy
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There was a big security patch in the recent BIOS 1.5.2 - looks like it could be for that?
"Firmware updates to address security advisory INTEL-SA-00185 (CVE-2018-12188 CVE-2018-12190 CVE-2018-12191 CVE-2018-12192 CVE-2018-12199 CVE-2018-12198 CVE-2018-12200 CVE-2018-12187 CVE-2018-12196 CVE-2018-12185).
- Firmware updates to address security advisories INTEL-SA-00191(CVE-2018-12201, CVE-2018- 12202, CVE-2018-12203, CVE-2018-12205)."
Why do you think disabling HT would have an impact on security? -
"The 4.8 GHz can only be reached using the " Thermal Velocity Boost" which allows one core to boost to 4.8 GHz (+200 MHz) as long as the CPU temperature is ***below 50°C.***" -
If we had a model number we could maybe find out more.
Anyone with the OLED model that can provide that info?
Also maybe post a video of the screen at low brightness, possibly in slowmo?
That'd be very useful -
propeldragon Notebook Evangelist
Last edited: May 15, 2019 -
https://www.dial.de/en/blog/article/ieee-1789-a-new-standard-for-evaluating-flickering-leds/etern4l likes this. -
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"It is strongly recommended that LEDs should be operated above 3 kHz because at this frequency no evidence has been found of any effects on humans." -
Basically, what Thermal Velocity Boost will achieve is overclock the CPU when it's doing very little work, or for a second or so when it's starting to do some real work - that's it. 4.8GHz looks good in marketing materials though.
Papusan likes this. -
BTW Disabling HT doesn't affect idle temps, but temps under load go down significantly (13C) - around 59C in CB20. On the other hand, the boost provided by HT in CB20 is around 47%, therefore a 6 core CPU with HT performs like one with 8.8 cores. HTH
Vasudev likes this. -
ok guys, HWinfo says about OLED dispay in my m15 with 2060:
SAMSUNG [Unknown Model: SDCA029]
156WR04 [DELL P/N: 0HHFM]
I tried to measure flickering without any device ment for it, just by camera moving with shutter speed known and thin vertical line with different brightness settings. My conclusion is that even on 70% brightness there were none flickering observed / only thickened line/ on 40% there was line dividing into 8 lines so with my camera shutter at 1/33s it could be around 260 Hz, but only at realy low brightness.
So it looks like at the higher brightness settings there is no flickering as for PWM.
as for link about flickering, thank you, good reading.
Well there are some serious health threats with these, but all this seems widder than it is. If you are concern about health and what could harm your health you have to take in acount also things like TVs, Lamps, all kind of lights and lightings, not just OLED, LED. Also all kinds of microwaves starting from bluetooth /as for wireless headsets which are so popular nowadays - airpods itself have some serious claims against about harming brain tissue/. Games themselfs have always warnings about epilepic and health dangers even nowadays after CRT era. So ok, if OLED are bad, it should be fixed, but than ... what about TVs ,even LED TVs, cell phones, lights, waves, everything, ...electric smog,...than you realize you take all or nothing, cause saying we limit one but let other 100 unhealthy things in our lives is not ok as well. -
At what brightness level do those lines appear? I think 40% is still a bit high for evening/low-lights usage...The Alienware 13 uses 240hz at brightness <=100% so I'm starting to believe they will behave the same...I doubt they're using a hybrid DC-PWM solution like Samsung does on some Desktop monitors, but who knowsLast edited: May 15, 2019 -
I think we have to wait for the review of this oled from notebookcheck, they have precise display tests including PWM so all this is just my amateur opinionLast edited: May 15, 2019FXi likes this. -
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Is it really impossible to get a 8950HK with a RTX 2060? I already have an AMP with a 1080Ti and would like to have the best possible CPU, and on the go the 2060 is more than enough.
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Yes you can get the 8950HK although you'll be able to get the 8 core 9880H in about a month.
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Lowering the heat by reducing the threading helps improve clocks, although in something as heat laden as the m15 that "help" will be small. The 9700 with 8 cores and no HT outperforms the 8700K and 8086K when clocked the same. 6+6 is less effective than 8 real cores in a lot of scenarios (not however something like CB, but I don't care much about benching nor video work which likes a lot of cores).
I don't expect to hit 4.8 peak clocks at under 50c. However if 8 cores are max capable of 4.1 and with heat well managed I may well get 8 to 3.9-4.0. That's not desktop speeds but it's not bad. -
https://www.oled-info.com/pulse-width-modulation-pwm-oled-displays
SDC (Samsung) uses pwm in all its mobile OLED displays, apparently so does LG TV's if the article is correct (they have only camera which they admit is a limited test).
Notebookcheck also keeps a running database of pwm tests at this link
https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartphones-and-Tablets-with-PWM.163979.0.html
You'll find that notebookcheck found that all iphones which use SDC OLED panels all come in around 240Hz. Which is also what the Alienware 13 came in at, so it's possible that's what the 15.6 OLED panels will be doing. I'm sure notebookcheck will be testing OLED panels from AW, Razer and even HP so you'll probably have testing to verify this in the not too distant future.
But if people found the AW 13 OLED to be "great" in most cases that was using 240 pwm. So you'll have to factor that into "want it"/"don't want it" decisions. -
4.1GHz is a Turbo Boost speed which in that processor will be time limited and locked to something like 30s, and therefore it has little bearing on performance under sustained loads.
The question is: what will be the max clock at full load to the standard TDP of 45W for the new processors and we don't know because Intel doesn't advertise that. It is around 3.1GHz for the 8750H, however, this processor undervolts like a dream so mine runs at 3.6GHz on all cores at 72C. Again, heat is of little concern.
Since the architecture is the same, I think the real performance improvements will be mainly on 1-2 core loads and due to the larger caches, and as such will be limited. Check out Ultra Male's review of the i9-8950HK unlocked processor if you haven't already.
You talk about "real life performance rather than benchmarks". Well, I guess what you are saying is "under smaller loads" and in those scenarios the 9880H will clock higher (again, for example older games only utilising only 1 or 2 cores), but then there is little benefit to having additional cores, and the overall practical difference will be limited in most cases.Last edited: May 16, 2019 -
This is clearly apparent in the Notebookcheck review of the AW13 OLED. They say the screen has "no drawbacks" but then they state:
"A test grey-to-grey was unfortunately not possible, because the fluctuations were too high due to the flickering (around 240 Hz; one of the few drawbacks of the OLED screen)."
LOL. The facts are clear: 240Hz PWM is very low by today's standards and well under the 3kHz recommended minimum PWM frequency and thus very likely unsafe. The 400nits m15 screen should under very few circumstances be used at full brightness, and dimming exacerbates PWM issues.
Adding to that the 4K resolution, I pass with confidence for now.Last edited: May 16, 2019 -
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I would like to ask something about BIOS, is there anything important before clean install or after for average user to change in BIOS on new m15 or I should leave BIOS intact? And if I am on newer version from stock is there way to move to older version? Thanks
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I hope the m15 OLED gets reviewed properly, but not clear how much focus professional reviewers put on health issues, if even guys like Notebookcheck can go like "this thing flickers so much we can't even test it, but yeah, it's great".
What health hazard does the 144Hz IPS pose after calibration to remove the excess blue levels, at a safe brightness setting, and with night mode on please (that I can't mitigate using computer glasses)? -
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Yep I read about the 8950hk quite a bit. And don't think I don't hear you etern4l. And I think I'll let the world get pretty full of OLED screens, knowing that the XPS 15, Razer 15 and HP models are all using the SDC OLED panel, and we should begin to see the compromises show up in people's opinions somewhere. Failing that I'm willing to bring one home and if it fails to live up to the billing, I'll send it back.
And this is particular because to me the choice is down to 15.6 OLED m15 or UHD m17. In a perfect world maybe I'd have the option of 17 OLED, but we'll see. And do also remember that OLED has 1ms transitions (and yes I read your gtg comment above and yep that's a problem if 1ms doesn't cover all the transitions). But that's worlds faster than all the LCD panels available. The color gamut is also good as is the text readability. So let's see how this goes. I don't think it's instant win (as you say there are "issues" that get glossed over) but many of the positives of OLED are things I'm looking for.
As for the new cpu's, let's see. You don't get higher clocks. Noted. But you have undervolted and enhanced your cpu to it's maximum ability. You' have to admit that how well your cpu behaves is better than the out of the box. Certainly that same level of treatment would improve a 9880h (not the hk). And we'll have to see if that proves true in testing. -
It doesn't always save you (sometimes you are prevented from rolling back) but saving each BIOS update file (they aren't huge) in a directory so you had a path backward would probably be a good idea.
If you are super sensitive to downtime (I'm laughing a bit because darn it who ISNT?) and you don't really badly need what a BIOS update has to offer, you may try waiting a couple of weeks just to see if the web goes crazy over some botched update. It's one thing to rollback an OS update or take an image of your drive before changing software or settings, but BIOS changes are tough to undo if things don't go well.
You will often see people here checking if others have implemented a given bios update before committing to applying it to their own machines. -
Last edited by a moderator: May 17, 2019c69k likes this. -
I'm pretty pleased with my m15 overall. It's very quick, well built, and much more portable than I ever dreamed a gaming laptop would be. I use it for work (building software) in addition to gaming and some video editing.
Being that I use it for work and travel, battery life is important to me and was a consideration in purchasing this particular machine with the 90Whr battery. Sometimes the battery life is excellent and I can get upwards of 7hrs with the screen at 50%, battery saver on and the battery profile selected in throttle stop. I've also undervolted the cpu cache, core and integrated graphics.
Other times the batter life leaves something to be desired and I'm getting around 4-4.5 hrs with the same settings performing the same tasks (browsing, streaming, etc...). I've read that it might be Windows updating in the background, but haven't been able to confirm this.
What gives? Anyone else experiencing the same issue? Is this just a Windows 10 issue or should I contact Dell support -
I read a comment some ways back where a lower res OLED panel was criticized for "showing some fringing on text characters". Probably since phone resolutions are what their machines are coming from (just building bigger) making the screen 4k was an easy win, and they seemed to have made sure that down res to 1080 is visually very good so people would have, in theory, the best of both worlds. I'm not saying if it is or isn't but it could be the theory.
Moreover, look at who would be willing to pay for OLED panels, people generally not shopping 1080 15.6" screens right? The most likely step up to OLED would be UHD high gamut buyers for whom the OLED appeal would be very strong.
Personally I like the higher resolutions screens. Some do not and it's fine to have both types. But if you are building a panel that you know is going to cost more, you probably build at least your first model or two as one to appeal to buyers spending more.
The world is going to be full of OLED panels in 5 years. They are a lot cheaper to make than they were 5 years ago. Just as 5 years prior to now, LED's themselves were just beginning to be put into everything. Factories were ramping up production of them, just as multiple manufacturers are building OLED factories now (or converting existing to OLED in many cases). That means you will get the 1080 1000Hz super panel someday and that won't be far off.
I forgot all light sources generate heat. LED's have come way down and the methods for controlling them have improved. OLED's in small devices are still improving and engineering still needs to account for heat. That's one of the problem areas with microLED's too - dealing with the heat output increase over regular LED's.Last edited by a moderator: May 17, 2019 -
Well, I'd think that's wrong
Last edited by a moderator: May 17, 2019 -
propeldragon Notebook Evangelist
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Capacity is 87.530 Whr. I've had the laptop since the end of March.etern4l likes this. -
Credit to Etern4l for thinking to ask this question, but do folks with OLED screens notice a bothersome amount of motion blur when moving a colored object around on a black background? This is a test of black rise response which is a weak area of OLED (all of them) as the fully off (no power) pixel to lit up pixel response time is the slowest response on an OLED panel.
This test is going to be subject to perception, not everyone will notice equally. But since we have several OLED panel users here, perhaps we have at least a small sample set. Should be a large all black background and then some brightly colored object being moved around on the black field.etern4l likes this. -
Looks
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propeldragon Notebook Evangelist
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Thanks!
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BTW It's interesting that Samsung themselves have abandoned OLED TVs on due to burn-in issues.
3:20... incredible.
Papusan likes this. -
Hello everyone - I have owned my m15 now for a few months and had a real chance to use it in "anger". After an initial false start with an overheating model(Alienware swapped for new one without hesitation), I can honestly say this is a wonder of technology. The first few weeks I became obsessed with temp watching, performance testing, just constantly wondering if I had made a mistake. I mean, it is a lot of money so wanting the right bang for buck ratio, well, testing is a must.
In this I was wrong. watching figures on a screen misses the point with this laptop. AS soon as I stopped monitoring and started playing / using, my feelings changed from doubt to one of wonder. It does not miss a beat. Solid 60fps on ultra in any game on my 1440 wide screen monitor distracts from the buttery smooth graphics that the GPU can push out on the external or 4k internal panel. The processor effortlessly snaps huge RAW images into a pano, my usual phone twitter browse no sooner started before the image is stitched. The keybaord a delight to type on, the weight more than acceptable when carrying in a shoulder bag.
This is a beast in a portable package!!
Is it without issues? Oh god ,no. It is noisy when at full power (fans spinning, cooling needed). It does thermal throttle when under load for longer periods (a re-paste might be in order), and the battery life sucks unless you cut back on the use to a point that it is no more use than a tablet. And dont even think of using on your lap, those fans in the bottom NEED air!! But eyes open, this is a gaming laptop with a high end CPU and GPU, to expect any of the former not to appear would be unrealistic - maybe in 5 years, maybe not. For now, this is a veritable delight to use and one that I hope sits on a stand on my lap or desk for years to come. -
According to MobileTechReview, m15 OLED has poor colour accuracy of out the box. I wonder is it really hard to calibrate an OLED display using your own colorimeter?
etern4l likes this. -
i dont especially want to read through 235 pages
but can you guys tell me what expected temps for a alienware m15 with i7 8750h with undervolt and kryonaut repaste should be ? ive heard alot of people say that the m15 gets 100c quick and is hard to get below 95 without limiting performance etc like crazy, what have you guys achieved with uv and repasted at once ? i also plan on getting the 2060 version since i heard that that one is cooler than the 1060 ( cooler in both ways
), coming from a blade 15
and no i wont accept answers like prop the device up
..thats a "gettho" fix for me
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Spartan@HIDevolution Company Representative
Alienware m15 / i9-8950HK Review by Ultra Male -
Awesome notebook after a bit of tuning.
BTW search function helps.Last edited: May 19, 2019 -
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Edit: just got curious and ran CB20 without the cooling pad:
1st run: 98C max, 81C average
2nd run: 100C max, 86C average
With the pad the temps are
1st run: 96C max, 78C average
2nd run: 98C max, 81C average
SotTR on max settings without the pad runs at: CPU 81C max / 70C avg, GPU 74C max / 68 avg
Ambient temp is 23C.
In conclusion, TB is going to push the temps pretty high in benchmarks either way, but thermals at 45W (basically the average number in CB20 results) look much better. Gaming temps are fine without a pad. Still def worth using one when the laptop is sitting on the primary desk.Last edited: May 19, 2019 -
tb 90w ? my blade was able to get 4.1 tb on 2 cores and 39 on all cores with only 45w dtp, for hours , why do they need such high tdp to get the tb, ? it wasnt even getting that hot with average 85, and max for split second of 95 if the tdp is limited to 45w, will it be abkle to hold the turbo ? cause it wont get into thermal throttle and throttle below the turbo for all or 2 cores ?
i saw in one video someone saying that limiting to just 45w was enough to bring the temps down alot while still having goot frequencies, ( i cant remember what video that was )
*OFFICIAL* Alienware m15 Owner's Lounge
Discussion in '2015+ Alienware 13 / 15 / 17' started by ssj92, Oct 25, 2018.