100W at idle when raising monitor refresh rate | NVIDIA | Page 1

crimson siren Feb 19, 2025, 8:59 PM

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crimson siren Feb 19, 2025, 9:26 PM

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crimson siren Feb 19, 2025, 10:44 PM

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cedar bear Feb 20, 2025, 12:05 AM

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The display controller needs to be run at a higher power to send the contents to the displays

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Are you using two 4K displays? Since it appeared you have a second monitor

crimson siren Feb 20, 2025, 12:20 AM

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cedar bear Are you using *two* 4K displays? Since it appeared you have a second monitor

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cedar bear Feb 20, 2025, 12:33 AM

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not a bug, a necessity

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display controller likely can't run at idle clocks with that many pixels per second

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if you want to, go ahead and test this scenario

unplug all other monitors

have your primary monitor:

set to 1080p60
scaling is set to by display

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what idle wattage do you now get? It should now be in the teens

crimson siren Feb 20, 2025, 12:35 AM

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cedar bear Feb 20, 2025, 12:37 AM

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@hallow kayak Please do not post in an unrelated thread

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cedar bear Feb 20, 2025, 12:38 AM

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crimson siren One message removed from a suspended account.

while having the setup as indicated, show the contents of HWINFO sensors' GPU section

thorny ploverBOT Feb 20, 2025, 12:38 AM

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Use the following benchmarks and monitoring tools to determine if your PC is performing as it should.

Benchmarks
3DMark
Black Myth: Wukong Benchmark Tool
Cinebench 2024
Cinebench R23 (TechSpot download)
CrystalDiskMark

Stability
OCCT
Memtest86
Memtest86+
Please note that these two software are similar but distinct to each other

Monitoring
CrystalDiskInfo
HWINFO

Information
CPU-Z
GPU-Z

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HWINFO has two modes, Summary and Sensors. Normally, when asked, you'll want to use the Sensors-only mode to get the information that may be needed (e.g. temperatures, power usage, clock speeds.)

When opening HWINFO, make sure to tick "Sensors-only" so that it does not open the summary display first. Then click Start.

On some hardware, HWINFO may ask if you want to monitor them or not, as there may be some potential conflicts if they were monitored. Usually these aren't important enough to matter if it's being monitored or not.

Once HWINFO's sensor status window open, look for the relevant sections and screenshot them. If you're unsure, screenshot the entire thing. This window is scrollable, so you'll need to scroll and take multiple screenshots.

If you know what you're doing, these are the items you'll probably need (names may vary; below are samples from Intel CPUs; some items may not exist for your particular system):

Core VIDs
CPU Package Temperature
Core Thermal Throttling
Package/Ring Thermal Throttling
CPU Package Power
PL1 Power Limit (Static)
PL2 Power Limit (Static)
MOS
VR VOUT
+12V
Vcore
CPU Fan
Pump Fan
GPU Temperature
GPU Hot-spot
GPU Core Clock
GPU Power
GPU +12V
GPU Fan
GPU Performance Limit Reasons
Windows Hardware Errors (WHEA)

crimson siren Feb 20, 2025, 12:40 AM

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cedar bear Feb 20, 2025, 12:47 AM

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crimson siren One message removed from a suspended account.

No. Missing clock speed information.

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Just get HWINFO

crimson siren Feb 20, 2025, 12:48 AM

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cedar bear Feb 20, 2025, 12:49 AM

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crimson siren One message removed from a suspended account.

it's idling at 71C

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Are You Sure?

crimson siren Feb 20, 2025, 12:49 AM

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cedar bear Feb 20, 2025, 12:49 AM

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crimson siren One message removed from a suspended account.

This isn't a valid reason. Modern GPUs idle at 55C at most even with fans off.

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Something's scuffed

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Please just get HWINFO and show the actual screenshot of what I was asking.

crimson siren Feb 20, 2025, 12:50 AM

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crimson siren Feb 20, 2025, 12:50 AM

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cedar bear Please just get HWINFO and show the actual screenshot of what I was asking.

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cedar bear Feb 20, 2025, 12:55 AM

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crimson siren One message removed from a suspended account.

Wrong mode.

thorny ploverBOT Feb 20, 2025, 12:55 AM

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HWINFO has two modes, Summary and Sensors. Normally, when asked, you'll want to use the Sensors-only mode to get the information that may be needed (e.g. temperatures, power usage, clock speeds.)

When opening HWINFO, make sure to tick "Sensors-only" so that it does not open the summary display first. Then click Start.

On some hardware, HWINFO may ask if you want to monitor them or not, as there may be some potential conflicts if they were monitored. Usually these aren't important enough to matter if it's being monitored or not.

Once HWINFO's sensor status window open, look for the relevant sections and screenshot them. If you're unsure, screenshot the entire thing. This window is scrollable, so you'll need to scroll and take multiple screenshots.

If you know what you're doing, these are the items you'll probably need (names may vary; below are samples from Intel CPUs; some items may not exist for your particular system):

Core VIDs
CPU Package Temperature
Core Thermal Throttling
Package/Ring Thermal Throttling
CPU Package Power
PL1 Power Limit (Static)
PL2 Power Limit (Static)
MOS
VR VOUT
+12V
Vcore
CPU Fan
Pump Fan
GPU Temperature
GPU Hot-spot
GPU Core Clock
GPU Power
GPU +12V
GPU Fan
GPU Performance Limit Reasons
Windows Hardware Errors (WHEA)

crimson siren Feb 20, 2025, 12:57 AM

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hearty ore Feb 20, 2025, 1:01 AM

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Did you set your Nvidia power management to "Prefer Maximum Peformance?"

crimson siren Feb 20, 2025, 1:01 AM

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crimson siren Feb 20, 2025, 1:01 AM

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hearty ore Feb 20, 2025, 1:01 AM

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crimson siren One message removed from a suspended account.

4k 144hz will engage DSC, while 4k 120Hz doesn't engage DSC

crimson siren Feb 20, 2025, 1:02 AM

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cedar bear Feb 20, 2025, 1:02 AM

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crimson siren One message removed from a suspended account.

Pay attention to the "GPU VIdeo Clock"

crimson siren Feb 20, 2025, 1:02 AM

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cedar bear Feb 20, 2025, 1:02 AM

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See how you cross the monitor line and suddenly it goes to GHz territory?

crimson siren Feb 20, 2025, 1:03 AM

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hearty ore Feb 20, 2025, 1:04 AM

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crimson siren One message removed from a suspended account.

You are running 3 monitor actually

crimson siren Feb 20, 2025, 1:04 AM

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hearty ore Feb 20, 2025, 1:04 AM

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when DSC is engaged, that 4k 144hz uses 2 ports

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so essentially you are running with 3 monitors plugged in

crimson siren Feb 20, 2025, 1:04 AM

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hearty ore Feb 20, 2025, 1:05 AM

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crimson siren One message removed from a suspended account.

You need to keep in mind what DSC does is combine the bandwidth of 2 outputs ports into one

crimson siren Feb 20, 2025, 1:06 AM

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hearty ore Feb 20, 2025, 1:06 AM

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So your 72hz monitor - 1 port
4k 120hz - 1port

72hz monitor - 1 port
4k 144hz - 2 port

hearty ore Feb 20, 2025, 1:06 AM

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crimson siren One message removed from a suspended account.

its using more power to combine frames since there isn't bandwidth on a single port

crimson siren Feb 20, 2025, 1:07 AM

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hearty ore Feb 20, 2025, 1:07 AM

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well you have practically using 3 monitors as far as the GPU is concerned

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and Nvidia isn't great at multi monitor and DSC to start with

crimson siren Feb 20, 2025, 1:08 AM

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hearty ore Feb 20, 2025, 1:08 AM

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crimson siren One message removed from a suspended account.

I wouldn't do that unless you want black screens

crimson siren Feb 20, 2025, 1:08 AM

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hearty ore Feb 20, 2025, 1:09 AM

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There are a few ways around:

Plug the 72 Hz display to your iGPU, that way your GPU uses 2 monitor instead
Get yourself a 5000 series GPU or a Radeon/Intel GPU, they have higher bandwidth per port with DP 2.1
Lower your 4k 144hz to 120hz

thorny ploverBOT Feb 20, 2025, 1:10 AM

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A monitor that uses DisplayPort 1.4 or HDMI 2.1 with DSC may cause reduced amounts of available video connections.

A GeForce GPU internally provides up to four display heads. For most monitors, each monitor connection uses one display head.

Very high end displays that use DisplayPort 1.4 or HDMI 2.1 with DSC utilize enough bandwidth that they use two display heads for one monitor. This will reduce the maximum available displays used with a single GPU.

On DisplayPort 1.4a with HBR3, if a monitor's capabilities exceed the rough equivalent of 4K120 (3840x2160 at 120Hz), including other resolution equivalents (e.g. 1080p400 (1920x1080 at 400Hz) or 1440p250 (2560x1440 at 250Hz)), the display might utilize DSC. (Some capability is lost due to timing requirements.)

To use the maximum amount of displays with such monitors with a single GPU, use the monitor's OSD to disable DSC, or use an alternative, lower-end connector if available.

Alternatively, if your CPU has an iGPU, you can enable it (if it's not enabled by default), and plug any extra monitors to the motherboard's display output(s) instead.

As a third option, if your computer does not have an iGPU or motherboard display outputs, and has extra physical PCIe x16 slots (does not need to be electrically x16) with at least two slots' worth of clearance, you can add another video card to immediately add extra video outputs. If using an NVIDIA card, make sure that the driver you're using supports both video cards; mixing driver versions is not allowed, so very old cards may be unusable.

cedar bear Feb 20, 2025, 1:10 AM

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(the 7800X3D has an iGPU)

crimson siren Feb 20, 2025, 1:10 AM

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cedar bear Feb 20, 2025, 1:11 AM

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(If your motherboard has the required video output ports, see what happens if you plug the unimportant ones there)

crimson siren Feb 20, 2025, 1:11 AM

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cedar bear (the 7800X3D has an iGPU)

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cedar bear Feb 20, 2025, 1:11 AM

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crimson siren One message removed from a suspended account.

not really unless the other monitors are also actively drawing

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it basically takes zero effort to display a desktop wallpaper

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otherwise your GPU core wouldn't be idling on the Windows desktop

crimson siren Feb 20, 2025, 1:12 AM

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hearty ore Feb 20, 2025, 1:14 AM

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crimson siren One message removed from a suspended account.

I don't think it's the GPU core

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its the display core itself

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DSC is essentially a "software" solution

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the firmware has to compress and decompress the bandwidth

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so yes it is using power for that and needs to pull in another port to do the processing

crimson siren Feb 20, 2025, 1:16 AM

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cedar bear Feb 20, 2025, 1:19 AM

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crimson siren One message removed from a suspended account.

all bets are off if you OC anything

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I'd probably recheck all the wattage values with no OCs first

crimson siren Feb 20, 2025, 1:19 AM

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crimson siren Feb 20, 2025, 1:19 AM

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cedar bear all bets are off if you OC anything

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hearty ore Feb 20, 2025, 1:38 AM

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crimson siren One message removed from a suspended account.

cause that is basically using 2 port aka 2 monitors

hearty ore Feb 20, 2025, 1:38 AM

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crimson siren One message removed from a suspended account.

also, why the weird 72 Hz monitor?

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not 75hz?

crimson siren Feb 20, 2025, 1:39 AM

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hearty ore Feb 20, 2025, 1:53 AM

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crimson siren One message removed from a suspended account.

monitor overclocks above anything native drives up power consumption on the GPU and monitor

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so yeah I can see why 100w isn't plausible

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This is a User Issue

crimson siren Feb 20, 2025, 1:56 AM

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hearty ore Feb 20, 2025, 1:57 AM

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crimson siren One message removed from a suspended account.

its not unreasonable

crimson siren Feb 20, 2025, 1:57 AM

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hearty ore This is a User Issue

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hearty ore Feb 20, 2025, 1:57 AM

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its just that Nvidia cheapened out on the display controller to save a few cents

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they did fixed it on the 5000 series

crimson siren Feb 20, 2025, 1:58 AM

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hearty ore Feb 20, 2025, 1:58 AM

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but there was never an issue on Radeon or Intel GPUs as they have better display engine and ports

crimson siren Feb 20, 2025, 1:59 AM

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hearty ore Feb 20, 2025, 1:59 AM

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The ports are all the same across the 4000 series line up

hearty ore Feb 20, 2025, 2:00 AM

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crimson siren One message removed from a suspended account.

At one point I'm asking people to buy a 7600XT or a Arc A310 as a display out adapter

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and the 4090 as a headless render/GPU rendering

crimson siren Feb 20, 2025, 2:00 AM

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hearty ore Feb 20, 2025, 2:00 AM

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especially those on triple monitor setup

crimson siren Feb 20, 2025, 2:00 AM

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hearty ore Feb 20, 2025, 2:01 AM

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crimson siren One message removed from a suspended account.

You're not losing any features

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You keep your 4090, but the 7600xt has a display out

crimson siren Feb 20, 2025, 2:01 AM

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hearty ore Feb 20, 2025, 2:01 AM

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but you need two gpus in your build

crimson siren Feb 20, 2025, 2:01 AM

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hearty ore Feb 20, 2025, 2:02 AM

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its still a viable option for multi monitor for anything below 5000 series

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especially those with a g9

crimson siren Feb 20, 2025, 2:03 AM

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hearty ore Feb 20, 2025, 2:03 AM

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5000 series doesn't have this issue

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so yeah

crimson siren Feb 20, 2025, 2:04 AM

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cedar bear Feb 20, 2025, 2:18 AM

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crimson siren Feb 23, 2025, 9:25 PM

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cedar bear (the 7800X3D has an iGPU)

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cedar bear Feb 24, 2025, 12:37 AM

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crimson siren One message removed from a suspended account.

This doesn't sound right. What does the adapter look like/what is the adapter?

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There should be no stutter on any display

#100W at idle when raising monitor refresh rate