Dell Precision 7540 and 7740 Owner's Thread

If there's another program more reliable than hwinfo I could try. Anyway my personal opinion is that this panel deliver a great image quality all-around (for the category, of course).

 

On the CPU as far as benchmarks go, my 6 core that was heavily undervolted and had a cooling pad, scored almost 3k in R20, and looking at some other ppl with stock settings on the 8 core it was a in the mid 3k, (and I know I did not reapply paste on mine, nor did I tweak it to its max) and I was able to hit pretty good numbers, if I disabled the power limiting because the cpu did not hit 90C in R20 undervolted and running above 4Ghz, it would get even higher score but because of the built in power limiting it went from perfectly stable all turbo at 90W to 70W, about a little past half way, so the 6 core is able to stay in all core boost without thermal throttle if you undervolt and give it extra cooling, and possibly even better if repasting

How this translates into the daily usage, not too sure, its heavily application specific, but I really doubt that the avg user will benefit from the 8 core vs 6 core if they tweak the 6 core, the line gets blurred even more, we can assume that 8 core when plugged and with all tweaks as a 6 core it will win over 6 core for sure, but it will always put out more heat and always throttle faster then 6 core
On battery I think for long life and cooler temps the 6 core wins, also note that users have stated the battery throttle is much more then when plugged on wall power, so the 6 core makes more sense for heavy battery usage, as you will get far more from the 6 core with higher clocks and less throttle and less power consuming then the 8 core

In my case study, I am really pleased with the 6 core undervolted and all battery savings to the max, the system is still usable and bearable in my apps, this is the case more likely to run into when away from the wall power, and really gives the a good balance of power and efficiency

This I agree it makes perfect sense, for me I tried that but I did not use my devices as I would have thought, I even bought a surface pro thinking that its light weight and portability would make me use it more in such situations, and for me personally it was not the case, yes I enjoy just like everyone a lighter device, but performance was bad esp in battery saving mode its almost unusable for my apps
I think for me a balance of the 7540 is great, my m6800 was a little too much weight and bulk for my liking and I did not enjoy it on the go, usage wise

 

Thx I had to download the apps at the store, because of the new driver format for windows etc... and I saw that brightness settings and it helped for sure

 

Do you know if this laptop would work with 128gb pc4-21300 ddr4 sodimm sodimm 2666mhz ?
I'm planning on buying this laptop and I would like to know before hand

Thanks in advance for your help!

 

Precision 7740 arrived today.

Added 2X16GB GSkill 16-18-18/3000 modules thus far. Would you take a look at attachments to see if all passes muster for me to order two more?

I'll keep the original Dell OS drive intact and have a 2TB 970 EVO Plus to install and will get yet another. Is there a consensus about which are the best slots for the two additional drives?

 

You're not running at 3 GHz on the memory, but only at 2.4 GHz.

You might consider returning that kit, and get a JEDEC-compliant kit that runs at 2666 MHz CL19.

 

Doesn't the AIDA report say current speed is 3000MT/s?

Also @reburns do you mind running firestrike / timespy benches? Curious how the RTX 4000 stands compared to the RTX 3000.

 

Not sure about that. I think that it's normal for CPU-Z to report the "max bandwidth" as the "max non-XMP bandwidth". Can we get a screenshot of the "memory" tab? It should report DRAM frequency of around 1500 (half of the "advertised" DDR speed is normal). The attached PDF does show it running at 3000.

 

Hmm, fair. The memory tab should clear it up.

Interesting that the 7540/7740 support XMP properly when the 7530 and 7730 didn't.

 

CPU-Z 1.9 (last available till now) doesn't fully support the new 7740 bios and can't get the reading of actual ram frequency and timer.

The best things is to use AIDA64 beta (last available) and run a 'Cache and memory' benchmark (where it will be displayed actual speed and timings, too).