Precision 7530 & Precision 7730 owner's thread

This philosophy also gives a reason for buying the cheapest SSD option which, after being used to check the system runs OK, is taken out and put into storage and replaced by a SSD of your own choosing. Then, if the machine plays up, the original one can be put back to confirm if the problem is hardware (problem still exists with original SSD) or software (problem goes away).

John

 

Have any of you noticed any thermal issues on the 7530 with the i9 8950hk? Just returned my 3rd XPS 15 i9 due to costant overheating and throttling.

 

Hey guys, does anyone know if the two thunderbolt ports are both 4 lanes each (8lanes total) or just two 2 lanes?

 

I don't have an i9 but I have the next CPU under it, the 6-core i7 8850H, in the 7530.

I've done some testing with multi-threaded workloads. The max turbo boost frequency for this CPU is 4.3 GHz, but with a multi-threaded workload it turbo boosts to a bit under 4.0 GHz (Windows Task Manager reporting 3.97 GHz). I've found that it's able to maintain a stable frequency for just a couple of minutes before beginning to throttle, and under full load it bounces around between 3.7 and 3.9 GHz. If the CPU workload is a little bit sporadic (there are small breaks) then it is able to maintain the max turbo frequency.

I imagine things would be a bit worse in the XPS 15 or Precision 5530 where the cooling system is not as robust. 7730 might do a bit better.

 

To be clear: the 'Max Turbo Boost' as reported by Intel is the fastest single-core boost. 4.2 is the quad-core boost, 4.1 is the dual-core boost, and 4 is the single-core boost.

Try running cinebench's single-thread workload, and your CPU should boost to 4.3 GHz on that single working core.

 

The fact is actually opposite: single core=4.3ghz, dual core=4.2ghz, quad core=4.1ghz, all cores=4.0ghz.

 

Ouch. You're absolutely right. I messed the numbers up—after having said that 4.3 GHz was the single-core boost, and to make this mistake. Heh.

 

I understand the decrease in max turbo depending on the number of cores, but I guess I didn't make that clear. I wanted to make sure that it was understood that I was testing with a multi-threaded workflow. This is all I care about, personally, I can't think of any CPU-heavy single-threaded jobs that I run. A single-threaded workload should cause the CPU to clock up to a higher speed.

 

I got mine 7530 yesterday. The build quality is good. It took me almost 10 minutes to open back cover first time. However, I'm not so happy about screen, I have some light spot/blemish at the left bottom corner, probably because of the constant pressure by the plastic cover. It is visible not only on the dark colors. What do you usually do in that case? Thanks!

 

Mine doesn't have this blemish but I found that I am indeed able to create a "light spot" by pressing on the bezel near the bottom left corner of the screen, while a dark image is displayed. So... Maybe?

The plastic bezel is easily removable if you want to try that and see if there is any reduction in the distortion. You can literally pry it away from the screen and it snaps off. (There is some sticky stuff in addition to the snaps, so it might take a little bit to get it going.) It is easy to snap back on. I did it just yesterday with a couple of 7510s for a screen swap. If you are able to reduce or eliminate the distortion with the bezel off, that's a clear troubleshooting step for Dell to use to fix it. (Maybe it's just not secured all of the way, and if you tighten down the screw in the bottom left corner that attaches the display to the case, it will be cleared up.)

In any case, if it bothers you, I would call Dell support and let them know. They should happily send a tech to swap out the display panel.