Precision 7530 & Precision 7730 owner's thread

This is just an impression i got when looking at the temps measured by coretemp while generating image previews in Adobe Lightroom. 3 cores shows a max at 100 deg C and the other 3 is 98/99. The CoreTemp program was giving red indicators (and exclamation marks) more often compared to with the old sink. BUT, this is just impressions based on few observations and not science.

 

The pre-applied paste should be adequate, as long as it's uniform (not scratched or dented).

The pictures show the old heatsink, right?

Regarding the display, the UHD display has been reported in this thread to have a kind of 'screen door' effect. The display gets a bit darker when you don't look at it straight, but more at an angle towards the left/right. However, your display has a dark patch near the top. It definitely lacks in uniformity.

I believe Aaron44126 also has the UHD display. Maybe he can compare with his display.

Which CPU did you get on your 7530? And which GPU?

BTW, the paste on the new heatsink in the picture with the chassis looks uniform and undamaged.

Did the tech remove the old paste residue from the CPU and GPU?

 

I haven't noticed any bleeding on my display. Granted, I haven't taken it to a dark room to check carefully. (Don't really have a good place to do that in the office.) But I just set it to show a black image --- in a well-lit environment but the screen brightness at max --- and I can't see any bleeding, except maybe just the faintest bit in the corners. If you can see bleeding in an environment like this then I'd say that's a valid thing to be complaining about.

I do observe what @Michiko is talking about, if I don't look at the display straight-on then it looks a little bit dim.

 

I7-8850H and Quadro P2000

Yes he did.

What about uneven back light, that is the worst thing. The bleeding on my new screen is acceptable. If you look at an uniform grey color filling your screen, what do you see? Anything like on my pictures (dell on the left): https://www.naturgalleriet.no/Imagebank-1/Dell-with-replaced-screen/n-DxtWSQ/

 

I tried a few solid colors. Maybe it's not quite perfect but I'm having a hard time finding any issues except maybe tiny bits of bleed (against a dark color) in the corners or on the bottom. Nothing like yours and certainly nothing like that dark sploch thing that you have going on in the sort of center/right.

This one is sort of light gray. I tried to capture a dark image as well but in the photo it seems a bit reflective, I can sort of see myself holding the camera. (Too much light here for that to be worth anything.)

(There's some degree of variance depending on the angle I take it at, it looks rather consistently colored in person.)

 

According to Intel Ark ...

https://ark.intel.com/products/134899/Intel-Core-i7-8850H-Processor-9M-Cache-up-to-4_30-GHz

... the i7-8850H has a Tjunction of 100°C, which is the maximum core temperature allowed for the CPU. This means that the CPU will start throttling when it reaches this temperature, to avoid overheating.

The temperatures you mentioned are very close or equal to the maximum, so the CPU is definitely running hot.

Can you check the temperatures when the CPU is idle?

Close all apps and wait for any background tasks to settle down. Idle temperature should be ~30-35°C, depending on the ambient temperature in the room.

 

Intel XTU automatically applies your last selected profile after a couple minute delay, not sure why you would need to do anything special?

 

I disagree with your first point. It doesn't have to be that bad to cause an issue without crashing the computer. It doesn't have to write to memory to miscalculate. It can miscalculate, take that erroneous value, and write it correctly to memory, and continue on.

I highly recommend the second point you make, especially if you're dealing with calculations that are critical for safety or life. In fact, I highly recommend not doing anything to your CPU if these kinds of calculations are being done.

 

Did he remove the old paste left on the chips on the motherboard? If not, it's likely air pockets have formed and they are impeding the conductivity.

EDIT: I just saw that you said yes. Sorry for the duplicate question.

 

Again, that would be oddly specific. Memory offsets are computed using the same hardware that does the general number crunching. Once it tries to read or write to/from an invalid address... boom.
It might get through a few errors without a failure by chance, but they're only going to keep coming and it will crash before long.