Chalybion

Exactly this, and need to add thicker thermal pads for the CPU VRM to compensate. The vents are blowing cold air because the heatsink is not contacting the CPU well, so heat is not being transferred to the heatsink Really cool that the 4070 is working! The last BIOS which allows undervolting on the 7720 is 1.15.1 The procedure to downgrade BIOS is here, and moderately complicated: https://github.com/vuquangtrong/Dell-PFS-BIOS-Assembler The basic steps are: - Download 1.15.1 and the newest BIOS 1.40.0 - Extract the contents of both BIOSes (this will include packages for the dell BIOS, as well as Intel Management Engine, etc. - Replace the 1.40.0 package with the 1.15.1 package - Recompile the 1.40.0 BIOS - The version check will pass, and the 1.15.1 BIOS will install Also, keep an original version of BIOS 1.40.0 on a USB drive, and learn how to recover from USB just in case the BIOS update goes wrong

Old sleep (S3 Sleep) has been replaced with a new default of "Modern Standby" (S0 Sleep). I only use Hibernate on my Dell work laptop, because "Modern Standby" is always monitoring inputs and thus uses lots of power. Two common problems with "Modern Standby:" - Command laptop to sleep, then accidentally jiggle a connected mouse, and the computer wakes up again - Laptop zipped up in backpack, then a wireless mouse or windows update process causes the computer to wake and bake itself with no ventilation "Modern Standby" is definitely a case of new is not always better, new is just new

That still sounds like a contact problem. The heatsink isn't mounted with much pressure, and all of the pressure comes from the springs around each of the four mounting screws. So if the GPU side is raised by 1.2 mm, then those springs have to push the heatpipes downward by 1.2 mm, and that much less force is applied to the CPU. Is it possible to do away with the GPU copper plate by using thinner thermal pads? Or shim the CPU heatsink an equal amount?

Since the issue persists with the P3000 reinstalled, the problem is with your modified heat sink - either the CPU is no longer making contact, or the fluid flow/wicking cycle in the heatpipes is blocked. But all three heatpipes would have to be damaged to get 99C immediately, and even then there is some heat transfer by conduction. So my guess is that the CPU is not making good contact - does the PTM 7950 show contact w/ the heatsink after the heatsink is removed? Can you describe the modifications that you made?

www.panelook.com Screen options are limited for the Precision 7740 screen mounting style (Face U/D Lock on Slug). There are 1920x1080 144 Hz screens that also use a 40 pin connection; most of the other resolution/frequency options are TN instead of IPS

Yes, if you want a UHD screen / 40 pin connector, the compatible webcamera is the IR one, which doesn't fit in the space between the WWAN antenna on the carbon fiber lid. If you don't want a webcam, I think the screen mounting points are the same on both lids. The VBIOS on the card you bought is the best you'll get. No need to download another UHD / 40 pin parts Aluminum back cover: https://www.parts-people.com/index.php?action=item&id=31777 IR Webcam: https://www.parts-people.com/index.php?action=item&id=30446 Bezel: (see eBay) UHD Screen: Dell Part # CK7T7. Below is a list of compatible UHD screen models:

Yeah, as long as the screw holes on the 05VCW8 line up with the holes on your RTX 5000, you will be all good with new paste. As long as the stock thermal pads aren't damaged, you won't notice a significant difference by changing them out. On the 7740, the RTX 5000 already runs at 110 W, which is the maximum available from a Dell VBIOS. Other manufacturers offered up to 150 W on the mobile version of the RTX 5000, and the Precision 7740 thermals could support that easily, but we're stuck with 110W.

That's super frustrating. Unless you want/need 4K resolution, it's best to get a new 30 pin display connector (and if there is any issue with the screen, a new 1080P screen). - cable + screen should be ~$140 Otherwise, the 40 pin cable is only compatible with a 4K screen, and also requires an IR webcam, different screen bezel for the IR webcam, and possibly a different lid (unless you already have the aluminum lid). Those changes are $$$ individually, and I don't see any complete display assemblies for sale on eBay right now. The other option would be to buy a cheap complete low-spec or for-parts laptop and take the parts you need

Those three connectors are the DGFF connectors; they are universal (They carry the PCI Express connection, and I think one is dedicated to power) Here is the heatsink part number for my 7740 with RTX 5000: Here are all of the other part numbers associated with the graphics card:

The display cable is paired with the screen, not the GPU. All display cables connect to the same eDP port on the motherboard. There is also a black power cable that connects from the motherboard to the GPU. At least on the Precision 7540, the RTX 4000/5000 cable is longer than the RTX 3000 cable, but I was able to make the old cable work by gently straightening the bends. Other than possibly the power cable, a new heatsink is the only requirement to make the RTX 5000 work.

/ranton I uninstalled the Copilot App from Microsoft Teams on my work computer. Since update Tuesday last week, every time I open up Teams I am greeted with a pop-up "Add Microsoft CoPilot!" And it true Microsoft fashion, there is no "No," only "Maybe Later," and "Later" is the next time I open Teams. Goddammit, Microsoft! /rantoff

"AI-native" translation: Windows 11 will hide key functionality and settings while pretending to understand what the user wants, while continuously surveilling the user to serve targeted ads and share personal information with governments

Delta fans create less high frequency noise at high speeds. Not a necessary upgrade, but a nice-to-have if you are already taking off your heatsink. They are distinguished by a white plug (instead of black), and no sticker on the fan hub.

6-core CPU max power is 60-75W, and for the 15" precision, max GPU power is 80W. So a 180W adapter is plenty. 240W adapter is only needed for 17" models (w/ 110W GPU), or if overclocking an HK-variant CPU. The Xeons are supposed to be a binned version of the equivalent i7, with additional support for ECC RAM and vPro. So the Xeon theoretically has better silicon quality - so theoretically less voltage is converted to heat at the same clock speeds. You may not see an appreciable temperature difference. FWIW, I've undervolted two Xeons in these laptops; one was 100% stable at -115 mV (both core and cache), the other stable at -120 mV. I'm not sure how that compares to the i7s.

Unfortunately I can't find my notes, but on my 7540 I used an assortment of 0.5mm, 1mm, and 1.5mm thermal pads. Any quality pad should be OK in these laptops. I'm on "Aggressive" processor boost mode, and use an undervolt to limit max temperature at full boost. If your laptop reaches a max temperature of >90°C at sustained boost clocks, then different thermal paste/undervolting can definitely help your temps. But the 80-90 °C range is normal at sustained boost clocks on these laptops