Sager NP8454 (Clevo PB51RF-G) early impression

Let's say the motherboard is exactly the same (i understand this to reduce production costs).

Does this mean that both metabox (prime-v) and eurocom (nightsky rx15) have made an agreement with clevo who exclusively provides them a "special bios" that simultaneously locks mux functionality if a 4k@60hz or 1080@240hz is found and unlocks mux only if a gsync certified 1080p@144hz panel is found on the notebook ?

 

I believe it's actually a hardware limitation with the 4K OLED panel (not 100% sure on the 240hz panel but it seems the same way). So the BIOS would be provided by Clevo to disable switching if a buyer configures the laptop with a screen which won't work in dGPU mode.

Fact is we'd need one of the actual reps or Prema here to confirm for sure how it works as I'm only speculating.

 

Usually handled by different SKUs.

 

Anyone who would be so kind to post an hwinfo trace of 5min prime95 blend test?

Could anyone confirm the lowest discharge rate when on powersaving profile on battery? (nvidia should be off)

Thanks

 

Every chip and environment is different, so it wont mean too much.

 

Hi, Meaker! The NP8454 product page mentions that it's Optane-ready. How would I take advantage of this? Does this mean that the Optane module should use one of the M.2 slots, or is there another slot hiding somewhere? I'd love to see if I can improve my benchmarks further. Thank you very much!

 

If you have a look at the spec page you can see the slots. There are two suitable x4 PCI-e slot m.2s.

 

If the CPU is the same (9750h) and the nvidia is off and the pc is idle and in powersaving mode, the error (if any) should be negligible.

I would expect an idle consumption around 5-8W on minimum brightness, based on the 8750h laptops I have tested.

If it shows 15W or so, either it's not using the powersaving profile (cpu should be mostly at 800mhz on Package CState 3 or lower) or something in the OS (or bios) is preventing it from being efficient

 

Power is determined by temperature d chip quality. There will always be variation. The display will have impact too.

 

Oh I guess you are referring to the prime95 results, I was talking about the idle power consumption.

I agree about the stresstesting, the results will always be different. That is why the more we gather, the better

Regarding the lowest idle power consumption, that should be pretty much the same on all variations of the same Clevo base model.
It helps detect BIOS bugs or restrictions imposed by the manufacturer. This machine should hover around 5 to 10W if configured with 1080p display (on low brightness) and no more than 2x8gb single rank RAM

 

@Prema
Hi !
I see that reseller 'Dreammachines' is offering 'prema bios' for both clevo based unit pb51rf and pb71rf.
So maybe you can answer to my questions.

Actually i've only seen (in the european market) i9-9980hk with PB50RF (so no g-sync) with only 240hz display or with PB71RF-G with 144hz display.

Do you know if PB50RF(-G), PB51RF(-G) have the same exact motherboard ?
I mean do NON gsync units still have MUX chips ? If so, can they be re-activated ?

What i want to ask you is if i buy a PB50RF and than replace stock 240hz display with a certified gsync 144hz panel, will g-sync now work on my new custom PB50RF-G with i9-9980hk ?

 

Hi, Meaker! FYI for your Sager team, this system is currently listed as #8 ( and #13) on Passmark's Top 20 Fastest Laptops ever page! Even better, if Passmark would accept results within 5% of my previous high score, this notebook would be in 3rd place. As far as I'm concerned, achieving this with a 4K monitor makes this #1!

Once again, kudos to the team that built such a great product. Well done!

 

The desktop chip machines would take #1 too but that's hard for them to detect

 

Passmark leaderboard is useless. And their software ain’t much better. @Mr. Fox

 

Wow...I should run passmark on mine and push that number up a bit. Mine can hit 4.6ghz which should put it near 4th/5th place.

 

Why not, can't hurt

 

It's official. This system is now ranked in 3rd place in Passmark's Top 20 Fastest Laptops page! The only two systems that are faster use K-type (overclockable) CPUs, while this one runs a 9750H with its RTX 2070.

For those who are interested in trying it out, note that Passmark does require some O.S. tuning to get the best results, but it's definitely a lot of fun.

Cheers!
Mark

 

Anyway we can get the Premamod bios for the clevo PB51?

 

For those who don't like Passmark, it's interesting to note that UserBenchmark rates this system at 97th Percentile (out of 100, only 3 systems with the same components would exceed it). On any benchmark I've run, this is truly an extremely fast machine!

 

Been messing around with my PB51RF-G for a while. Here's some tweaks to the memory that might help others with the same RAM (2x8GB Corsair Vengeance 2666). All done with the default timings and voltage:

Default 2667MHz (133x10)x2 = 38GB's memory bandwidth
Better (overclock) 2993MHz (133x11)x2 42GB's memory bandwidth
Best (overclock) 3000MHZ (15x10)x2 43GB's memory bandwidth

Also spent HOURS with the MSI curve editor. This curve elimates 99% of the power limit throttling in games (still gets odd minor flickers during 3DMark but that's not a realistic load). Memory is set to +300MHZ BTW.



Compare link (Discrete mode but with G-Sync off): https://www.3dmark.com/fs/20398647

 

I don't believe such a thing exists unless something changed.

 

I saw it on DreamMachines website, but when i emailed them they said they dont have it, but it showed on their website as an option when purchasing the laptop

 

Just a typo then I'm afraid.

 

Anyone who's willing to sacrifice 30secs of their busy life to post the minimum discharge rate reported by hwinfo on low brightness, powersaving profile, all apps closed?

 

Will that do?

 

That's great thanks!
Those values look really high.
Is the nvidia gpu off?
Is the CPU mostly running at 800mhz? (it should, when on battery and on powersaving profile)

Cpu package power should be around 0.7-0.8W with all apps closed.

Do you have 2x16gb ram by any chance?

 

Yes discrete mode was on as was the keyboard backlight. I have 2x8GB RAM. Here's another one in mshybrid mode with the keyboard backlight off:

 

Thank you.
Cpu 6.5W and 34 discharge rate, it's consuming even more now :/
Uncore of 4W would make me think the intel gpu is busy doing something not stressful.

Are all the apps closed?
Try closing hwmonitor as that causes higher cpu load from what I have seen

 

Submitted a PassMark score but it turns out the test weights Disk performance quite a bit. So almost all the top entries are RAID0, regardless of CPU or GPU performance

 

While a RAID0 definitely helps, you'll get quite an impact to your system by running PrimoCache, a highly efficient caching system (and it comes with a free 30 day test drive). Still, both Passmark and UserBenchmark do rely heavily on the underlying disk speed, using long Sequential writes to measure it. Fast RAM's a factor, too since a large L1 cache (mine's 12GB) helps everything fly.

Added: If you're looking for a benchmark that focuses on CPU/RAM/GPU performance only, try Geekbench 5

 

L1 cache at 12gb? That's a big chip

 

Maybe we can beat up the cache folks, and get 'em to start calling theirs L4, L5 and L6!

 

I will have to try out some optane at some point, add another level to it all

 

And the useless PassMark bench test won't let you get an new score on the leaderboard if you don't score above 5% higher next time.

 

That does discourage optimising your run which is a bit odd for a benchmark.

 

I can’t imagine they have changed policy. Passmark wasn’t exactly bro @Mr. Fox favorite bench test in the old days
http://forum.notebookreview.com/thr...rk-thread-part-3.730723/page-142#post-9773760

 

5% is a lot, as he says odd they don't let you retire and replace.

 

This is bad if you already posted near pik overclock scores first time.


Could probably replace old with new scores if you swapped from old spinning HDD to faster NVMe ssd’s

 

To be fair your actual expereince would improve a lot with that too

 

Well, every benchmark has its idiosyncrasies. With enough optimization (getting RAM to 15-16-16-36-32 @ 3100 MHz), UserBenchmark's starting to whine. I've gotten to the point where I'm at 98% (only 2 out of 100 machines higher), but it insists that my drives are cached, even when PrimoCache, Intel RST and Windows caches are all turned off! As a result, it won't even report Gaming/Desktop/Workstation numbers at this level.

Things do get weird when you need to make your machine in reality slower, in order to satisfy the benchmark!

P.S. The machine passes MemTest86 just fine

 

Memtest is not a final stability assurance.

 

Well, the problem solved itself. I've run UserBenchmark so many times that it's driven down my SSDs' performance back below whatever 'threshold' they call cached. It'll be interesting to see if this returns, once I break the RAID 0 again and re-TRIM the drives.

 

For what it's worth, that's one of the top reasons why I like Passmark. When it supports running with caching like PrimoCache, you don't wear out your SSDs so fast. Depending on your drives' speed, UserBenchmark is writing >500GB+ each pass!

 

Most drives wont care to be fair.

 

To focus more on the NP8454 itself, may I recommend a pair of Corsair Vengeance 3000 MT/s CL16 16GB DRAMs for this machine? I know some folks are after longer battery life, but for those who are performance-oriented, it's fantastic! At 1.35V, I'm currently running it at 13-12-12-28 at 3093.2 MT/s, and I haven't even completed my optimization for it. Great stuff!



I should add that these settings are for "max performance" mode. For normal, long-term stability, I use the same settings, but at 3000, rather than 3100 MT/s (just a one-bit BIOS change). FYI!

 

Ram speed is not going to hugely impact battery life and 3000mhz modules are a good balance of speed/cost.

 

Hi,

I have similar clevo based model from singapore and the control center 3.0 wont launch anymore recently.

Anybody else experienced this problem such as myself?

Ive checked through the forum and someone has mentioned that windows 10 update 1903 screws with CC3 and they posted a solution using powershell to fix the issue, i tried it and installed with the latest CC3 drivers and apps, but it still wont work for some odd reason.

 

These modules do just fine at 1.20V, but they really scream at 1.35V. That's why I mentioned the battery life. Sorry.

 

Howdy!

Now this is more like it. A score which should, at the moment, rank as #1 for all laptops (the current #1 is 8065.9). However, thanks to Passmark's insistence on requiring a 5% increase for every score to be officially recognized, it doesn't count. Nonetheless, the Sager NP8454 is a flat-out screamer, compared to other i9-9750H/RTX 2070 machines - and everything else! Congrats, Sager!!!




Best Regards!
Mark

 

Does it recognise some sort of hardware ID? What stops you from creating another account to post it?