Lenovo Legion Y740 17" 15"

Strange... Looks like the 9th gen versions have a worse display. This new one says "anti-glare" but no G-Sync. I hope Lenovo doesn't hold out on this 500 nit display, or worse - make the non g-sync display standard. (Seems like the wording for the display's spec is identical to the y540. Maybe I should stop speculating)
Also, the Canadian web page has been updated to match the US site. Before it had no mention of 500 nit, but of course it's not listed as an option.
Its strange to see Lenovo's marketing and web dev departments being so loose about all this.

 

Are you sure I just went to the site and don't see it even after trying to customize it....

Can you guys share the link ?

 

They have the 9th gen for the 17 inch models not the 15" yet ....

 

I never saw anything concrete about the 500nit screens. In fact the words "panel" or "screen" was never even used, just "brightness level". It was always extremely vague to the point that I still doubt they will be introduced as an actual option.

I ended up returning my intial Y740 because of the refresh and I guess it'll still be a wait to see what actually results of it. Meantime I have an order from the possible pricing error that was going on with the Y540, about $1100 cheaper with the same basic specs, only missing afew bells and whistles(TB3, Gysnc,Icue). Might keep it, still waiting to see what happens.

 

Yes, it looks like they only updated the Y740 17" model with the 9th Gen. chipset - nothing as of yet with the 15" model. Also, there is no note of a 500 nit screen as claimed by, https://news.lenovo.com/pressroom/press-releases/lenovo-legion-just-got-savage-upgrades/ .

I'm going to still hold off on the Y740, and wait on the Y750 model.

 

https://news.lenovo.com/pressroom/press-releases/lenovo-legion-just-got-savage-upgrades/

There is something concrete in this, and they do say 'screen'. It says:
"The Lenovo Legion Y740’s optional 144Hz Full HD (1920 x 1080) display has NVIDIA G-SYNC™ available, designed to diminish annoying screen-tearing and stutters. With support for Dolby Vision® and a brighter screen at up to 500 nits, the Lenovo Legion Y740 brings entertainment to life."

Plus, the previous models were tested by reviewers. The brightness was always in the neighborhood of 300 nits.

Look at this article:
https://www.notebookcheck.net/Lenov...0H-RTX-2070-Max-Q-Laptop-Review.413926.0.html

They say in this review:
"Now, two separate display options exist, both of them featuring FHD resolution (1920x1080) and 144 Hz refresh rates for NVIDIA G-Sync. The only difference between the two panels (according to Lenovo specifications) is that one of them is brighter than the other (500 nits vs. 300 nits). The brighter panel is also correspondingly listed as an HDR display."

To me, Lenovo has made it clear that a new panel is planned. But given their past actions I'm worried that they will follow through with it. It'd be a good idea though, since people have been complaining about light bleed.

How is everyone missing this part...

 

Does your laptop still do this? I noticed on this 2070 version doing it more than the 2060 version. It's rather annoying to restart constantly to fix the clocks.

 

Apparently it's common with most laptops; just unplug and plug back in, resets the voltages. Much quicker and easier than restarting.

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Wouldn't think to unplug it, thanks for quick reply

 

Can I reduce the refresh rate to 60hz or 72hz (144/2)?
Would want to save some battery by disabling gsync, forcing iGPU, lowering the refresh rate to 72hz.

 

You can set a fps lock in games to improve batterylife.

 

I added custom refresh rates using: https://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

60, 90 and 120 play nice. 60hz while coding definitely saves battery. Basically anything other than playing games at 60fps will provide a result decent experience and a good bump in battery life.

 

Also. How do I play HDR video on YouTube?
I have HDR enabled in windows HDR settings.

I don't see the HDR option in settings on YouTube anywhere.

 

they finally updated the models and now have the 9750 intel chips

 

I just pulled the trigger and bought the Y740
Intel 9750H
RTX2060
8 GB Ram because I want to upgrade it to 32 GB

Are any of the ones you listed are a worthy upgrade ?

Somone mentioned a samsung model with lower latencey here is the link https://www.newegg.com/p/0RM-002H-000S4


Can anyone recommend me a good 32 GB RAM kit to install on my Y740?

 

I was impressed by how well the quality is on the factory thermal paste job coming straight from the factory.

However, do the Y540 / Y740 have something like on the MSI laptop, key combination to unlock advanced bios option to do tweaking like RAM Overclocking and more stuff?

 

Not sure, but you can already do CPU and GPU tuning and "overclocking" without needing BIOS.

 

That is just the basic tweaking, I was hoping for a way to tweak also the AC / DC loadline, the PROCHOT limit, and also Uncore offset for to successfully boot the laptop when RAM is OC'd to 3467Mhz like I did on my MSI GS65 laptop.

 

Hi guys. Would it be better to get 3000 cl16 ram or 3200 cl22? My main goal is gaming?
Thanks


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SPEED. Always speed. Also higher speeds lead to lower true latency

 

That’s said without hestitation? What is the true lower latency going to be in this case?
The 3000mhzill be choosing between g.skill or Corsair. The 3200mhz is crucial. Does that change your opinion or still same?


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As long as it is from a "big" brand, it's alright.

Using an example:
2133 Mhz CL13 -> bandwitdh = 17.0GBps; latency = 12.19ns
2666 Mhz CL15 -> bandwitdh = 21.3GBps; latency = 11.25ns
3200 Mhz CL16 -> bandwitdh = 25.6GBps; latency = 10.00ns

Higher speeds but "worse latency" still ends up performing better than lower speeds but "less latency"

 

Speed indeed,

These picture were taken when I was OC'ing from 2400Mhz to 3467Mhz on my GS65:

Below is 2933Mhz 18-18-41-18


Below is 3200Mhz 18-18-45-18


Below is 3467Mhz 20-20-49-20


(2933 CL18)57.1ns vs (3200 CL18)54.5ns vs (3467 CL20)53.5ns.

 

So this kit is the one to get because of 3200 :

https://www.crucial.com/usa/en/legion-y740-(15-inch)/CT14308509#spec


because this ones clock speed is 2666 :

https://www.crucial.com/usa/en/legion-y740-(15-inch)/CT14105109#spec

Kingston DDR4

https://www.hyperxgaming.com/us/memory/impact-ddr4?Speed=2666MHz&Module Capacity=16GB&Kit=Kit of 2#atc

Any of these kits should work with the Y740 right?

https://imgur.com/gallery/3NHp5bG

 

Thanks for the pics! It is interesting how higher speeds can make a huge difference in latency, much more so that just raw latency improvements!

Any SODIMM DDR4 RAM will work, just find the cheapest and fastest from a "good brand" and that should serve you fine

 

New owner of a 15 inch RTX2060 model and loving it. It truly is a beast of a laptop.
Immediately undervolted the CPU with -0.125 mV and it's running like a champ. Probably could push it more but after a while you run into the law of diminishing returns.
Has anyone tried undervolting the RTX 2060 and if so, what are your results?

 

Thanks !

 

So did Lenovo completely tank the military discounts for the Y740, etc?

We had competitive $1,200 pricing a month for high-end 2070 laptops. Seems like they reduced the discounts and the cost of the new screen/new processors is making it difficult to get the new systems lower than $1,600.

 

That price was probably for the 8750 intel models. /They recently upgraded to the 9750 intel models

 

What’s the 2060 wattage pulling these days on the 15” y740. There’s some mixed content on this as of today so I’m trying to get the current facts.

The 2060 3 months ago per my review was good for 80w in games and the rare 90w spike during Heaven or Firestrike randomly.

Some have said 90-100w on theirs.

 

It's possible that BIOS updates/drivers could have increased power limits on GPU. Last time I checked, it was 90W consistently

 

They are a bit costly, but these are the best choice in my opinion: https://www.gskill.com/en/product/f4-3200c16d-16grs they are based on the Samsung B-die which in general is the fastest and most tweakable ram-chip out there. What they will run at in the y740 I`m not sure of. if you own a laptop With XMP-options you can probably tweak them to run even faster.

 

Has anyone tried it. That bios update has only been going for 4 days.
Just trying to relate if there has been a power increase


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Looking at hardware maintenance manual, it looks like the batteries on the 17 inch can fit in the 15 inch if you take out the hard drive bay. Is this the case?

As per this reddit thread: https://www.reddit.com/r/Lenovo/comments/c35xpe/y74015_could_potentially_take_y74017_battery


You can see how the 15 inch's battery and storage bay overlaps nicely with the 17 inch's battery alone. This might be interesting to look into because a 76Whr battery in a Y740 would get rid of it's only real flaw, short battery life

 

I think it does because my Lenovo came with out a 2.5 drive so the sata port was unconnected and placed in the box for me to use later.
So out of curiosity I undid the battery and the shape then resembles the extended battery. And one of the screw holes is unoccupied with the 2.5 is in use, but it does look like it would be for the bigger battery.
If you look at the diagram again. Where the battery meets the hard drive, it levels off at the same height as the battery which coincides with what I said about the unoccupied screwhole covered by the 2.5” drive.
I’ll be buying one at some point so I’ll verify it unless someone has already.


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I have the Y740 2070 max-q with I7 8750H.

I am curious what clocks you are hitting with the stock vbios?

OC'ing through msi ab I can hold around 1800MHz while gaming as I cap fps to 100 so I never hit the 100% GPU usage and get frame drops. (Apex Legends/Overwatch)

Its odd you could only hit 1500MHz at 115W.
I wonder if the Alienware vbios sets the MHz limit?
Is that vbios unlockable?

Which laptop bios are you running? I am on 1.07.
(First time I entered bios advanced tab was unlocked!! Could set # of cores, core speeds, etc. Had pages of extra options.
Now The advanced tab is hidden when I enter bios You ever have any luck accessing the advanced tab in bios?? )

Is the Voltage the same? I thought the 17" used a higher Voltage battery?
Might need the 17" charger if that is the case.

 

Nice! Please let us know later!

I don’t know

 

Here a screenshot from my 17" battery, maybe that helps you.

Btw to those, who already have their Y740 in use for a longer period of time (>3 months): How is your thermal performance now?
I see much higher temperatures compared to the start (sure, ambient temperature has gone up to around 26*C now), now I see thermal throttling on the GPU? (I have already taken off the bottom panel to clean the fans) Throttling occurs when the GPU hits 81*C (on BF V and FC 5 for example) - CPU temperature on the other hand hasnt changed at all.
Could it be that the thermal paste has already gotten worse or is it just the high ambient temperatures?

 

Those are not too bad they def are reasonably priced too $155.99 https://www.newegg.com/g-skill-16gb-260-pin-ddr4-so-dimm/p/N82E16820232632

I may buy them.,

 

Ok so the charger for the 15" 2070 max-q puts out 20V and can supply 11.5A. (20Vx11.5A=230W)


HWiNFO64 Shows my battery is at 13V with 83% Battery.

What does the charger for the 17" output?

 

IIRC all Lenovo chargers are interchangeable. You can use a 65W brick or 230W. At least that was the case with thinkpads.

 

First of all, hi. Long time (guest) lurker, first time poster.

Ordered my Y740 15" w/ a 2060 last week.
I currently use a thinkpad for work, provided by my employer. Once I've got the Y740 in my hands, I'll test if the lower wattage brick works or not. Would be nice, as the Y740 brick seems to be excessively large.

I'll post again with my findings; ETA on delivery isn't until July 9th though...

 

I've tested with a thinkpad. I can use a 130W brick or 65W brick. Also could use a 230W brick.

I'm pretty sure the Y series is the same deal. I really wonder if you could mod a 17 inch battery into the 15 inch laptop. That would be EPIC

 

After all this time trying to find an answer to this, I came across a fix: Right click Battery (taskbar) > Power Options > Choose what the Power buttons do > Make sure Turn on Fast Startup is UNCHECKED!

Ever since doing this, I no longer need to reset my power cable or restart system, and the startup is negligible, maybe adding a few seconds.

 

I initially had plan to buy this but after knowing that Lenovo doesn't have global warranty for their legion series, Im opting for MSI GP75 series. Planning to order via HID-Evolution.

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The P series will not charge using a lower wattage brick, it will specifically give a BIOS error if you reboot with a lower wattage plugged in.
So this makes me pretty sure they let you go up in wattage but not down, since most thinkpads come with a 65W brick.
I believe I tested using a lower wattage brick with my Y740 as well and it did not work, but I may be mis-remembering as this was a few months ago.

 

I know that I could use a 65W charger on a X1 Extreme and the only downsides is that it would throttle CPU and GPU. Still charges just fine

 

Interesting, that's what I assumed plugging in a lower wattage charger would do with the P71, or at least charge it while off, but it wouldn't provide any power at all.
Considering the Y740 is the same wattage, I would assume it's the same situation, as they'd also have to disable rapid charging. Or maybe it needs a minimum wattage so a 170W or 130W charger will work but not 65W.

 

I really don't about more power hungry laptops, but every thinkpad I've tested works with both higher and lower wattage bricks. My X1 Extreme can happily run with half the juice, so I think a 230W laptop should run alright with 120W brick or so

 

After some research 135W will not work according to this page: https://forums.lenovo.com/t5/Gaming-Laptops/135W-charger-on-Lenovo-y740/td-p/4420099

Therefor a 170W *might* work, but so far it seems my hypothesis is correct that it needs a minimum wattage, though he doesn't mention if it will still charge while the computer is off (but that's not as useful).

Likely what is happening with your X1 Extreme (and other lower power thinkpads) is that they support charging over USB-C which affects their internal charging circuitry to easily support variable input, whereas on higher power machines it is likely they are hard set to require a specific power input.

I bought a cheap chinese 170w a while back and my laptop didn't even recognize it lol, but I assume that it's either dead or lenovo has some special circuitry to keep things proprietary.