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Dell XPS 8100: power rating of PCIe 16 slot?
I'm planning to upgrade the HD 6770 (2 Slot wide) to an INNO3D GeForce GTX 1050 Ti 1-Slot Edition card and also free the neighboring PCIe x 1 Slot in order to install a USB 3.0 card. Although it's a PCIe 3.0 card, it should be downward compatible. The Graphic card is rated at 75W which is the maximum rating for "high power devices" which normally has to be configured for the PCIe x 16 slot. Is this already configured for the XPS 8100 mother board or is it configurable in the DEL BIOS? Or is this slot "castrated" to 25W? As this card has no additional external power connector, it would not work. I could not find any relevant information under the specs for the XPS 8100.
beamermt79
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December 20th, 2017 11:00
Hello! I believe the PCIe x16 slot allows for 75W max from version 1.1a to 3.0. Your computer I think has 2.0 so you will possibly run into some issues. First off, because its gen 2, your gen 3 card will be down clocked. This means that you will not get the full performance of the graphics card. Also a lot of, if not all, 10 series cards require or work best with UEFI type BIOS. There have been some off and on discussions getting these newer cards to work with just regular BIOS>
vieirae
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December 23rd, 2017 09:00
Hi! The Graphic card was already ordered, so I tried it anyway: it worked perfectly out of the box. The USB3.0 PCIe card too! No problems with non-UEFI Bios! People who mention that maybe have a PSUwhich isn't up to the task upon booting.
Some results for 3DMark v2.4.4180 in Fire Strike(v1.1):
Default settings, no overclock), CPU: Intel i/ 860 @ 2.80 GHz
HD Radeon 6770 GTX1050Ti
Total points: 1738 6165
Graphics: 1784 (8.84, 6.91 FPS) 7407 (34.31, 30.27 FPS)
Physics: 6591 (20.92 FPS) 6614 (21.00 FPS)
Combined: 757 (3.52 FPS) 2613 (12.16 FPS)
With the 6770, the game would have been completely unplayable (although the physics value is comparable).
For the USB 3.0 card I get a 7-8 times faster data transfer compared to the USB 2.0 connectors (ca. 75-80 MB/s compared to ca. 8 MB/s). So both upgrades were worth it.
beamermt79
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December 26th, 2017 15:00
Awesome! Congrats and have fun!