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Power Limit % in MSI Afterburner

Power Limit % in MSI Afterburner

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HackSoreRus
Member
57
06-03-2016, 08:50 AM
#1
I am trying to understand the power limit setting for afterburner on my GPU. My GPU's TDP is 55W, but the maximum utilization listed is 75W according to Asus. There are no power connectors available. If I increase the power limit from 100% to 129%, what will happen to the card's maximum power usage (from 75W to 95W)? Will the manufacturer's power limit only apply, or could there be more power available? I'm also curious about whether connecting it to a PCI Express 3.0 x 16 slot with a 75W output capacity would cause any issues with my motherboard (Intel DB75EN).
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HackSoreRus
06-03-2016, 08:50 AM #1

I am trying to understand the power limit setting for afterburner on my GPU. My GPU's TDP is 55W, but the maximum utilization listed is 75W according to Asus. There are no power connectors available. If I increase the power limit from 100% to 129%, what will happen to the card's maximum power usage (from 75W to 95W)? Will the manufacturer's power limit only apply, or could there be more power available? I'm also curious about whether connecting it to a PCI Express 3.0 x 16 slot with a 75W output capacity would cause any issues with my motherboard (Intel DB75EN).

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IZackk
Junior Member
9
06-04-2016, 01:02 AM
#2
I am trying to understand the power limit setting for afterburner on my GPU. My GPU's TDP is 55W, but the maximum utilization listed is 75W according to Asus. There are no power connectors available. If I increase the power limit from 100% to 129%, what will happen? Will the maximum power usage go up to 95W or only change within the manufacturer's specified limit (from 55W to 75W)? I'm also curious about how much extra power would be accessible if I connect it to a PCI Express 3.0 x 16 slot, which has a 75W output capacity.
I
IZackk
06-04-2016, 01:02 AM #2

I am trying to understand the power limit setting for afterburner on my GPU. My GPU's TDP is 55W, but the maximum utilization listed is 75W according to Asus. There are no power connectors available. If I increase the power limit from 100% to 129%, what will happen? Will the maximum power usage go up to 95W or only change within the manufacturer's specified limit (from 55W to 75W)? I'm also curious about how much extra power would be accessible if I connect it to a PCI Express 3.0 x 16 slot, which has a 75W output capacity.

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Kubninjan
Senior Member
389
06-04-2016, 05:52 AM
#3
I am trying to overclock my GPU but I'm unsure about the power limit setting of the afterburner feature.... My GPU's TDP is 55W (Asus GTX 750 1 GB OC), while the maximum utilization listed is 75W (according to Asus). There are no power connectors available. If I increase the power limit from 100% to 129% (up to a certain point), what will happen? Will the maximum power utilization rise from 75W to 95W, or will it only reflect an increase in the manufacturer's power limit only (from 55W to 75W full utilization)?..... I'm asking this because my card is currently drawing power through a PCIe 3.0 x 16 slot, which has a 75W output capacity (based on my understanding). Could I be mistaken? Would increasing the power limit provide extra power to my card, or might it risk damaging my motherboard (Intel DB75EN)?.. Open up GPUz to the sensors tab and observe the power limit cap line. If you don’t see a PWR indicator, it’s green, so there’s no need to raise the power limit. Increasing the limit shouldn’t harm your motherboard; the PCIe slot can handle more than 75W, and the BIOS is also capped at that level.
K
Kubninjan
06-04-2016, 05:52 AM #3

I am trying to overclock my GPU but I'm unsure about the power limit setting of the afterburner feature.... My GPU's TDP is 55W (Asus GTX 750 1 GB OC), while the maximum utilization listed is 75W (according to Asus). There are no power connectors available. If I increase the power limit from 100% to 129% (up to a certain point), what will happen? Will the maximum power utilization rise from 75W to 95W, or will it only reflect an increase in the manufacturer's power limit only (from 55W to 75W full utilization)?..... I'm asking this because my card is currently drawing power through a PCIe 3.0 x 16 slot, which has a 75W output capacity (based on my understanding). Could I be mistaken? Would increasing the power limit provide extra power to my card, or might it risk damaging my motherboard (Intel DB75EN)?.. Open up GPUz to the sensors tab and observe the power limit cap line. If you don’t see a PWR indicator, it’s green, so there’s no need to raise the power limit. Increasing the limit shouldn’t harm your motherboard; the PCIe slot can handle more than 75W, and the BIOS is also capped at that level.

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TotalGamer144
Member
180
06-04-2016, 06:16 AM
#4
Continuous drawing above 75 watts from the PCI express port will harm the motherboard, particularly in cheaper models.
The RX480 was frequently affected by this problem, which led manufacturers to release new drivers and switch to an 8-pin cable rather than a 6-pin one (founders edition had 6 pins but was found to draw over 75 watts).
Perform your own investigation into power limits, but avoid applying any fix that would exceed the 75-watt capacity of your PCI express slot.
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TotalGamer144
06-04-2016, 06:16 AM #4

Continuous drawing above 75 watts from the PCI express port will harm the motherboard, particularly in cheaper models.
The RX480 was frequently affected by this problem, which led manufacturers to release new drivers and switch to an 8-pin cable rather than a 6-pin one (founders edition had 6 pins but was found to draw over 75 watts).
Perform your own investigation into power limits, but avoid applying any fix that would exceed the 75-watt capacity of your PCI express slot.

X
215
06-04-2016, 09:45 AM
#5
Continuous drawing above 75 watts from the PCI express port can harm the motherboard, particularly in cheaper models. The RX480 was frequently affected by this problem, prompting manufacturers to release updated drivers and switch to an 8-pin cable rather than the standard 6-pin. Be sure to check the power limits before applying any fix that exceeds 75 watts on your PCIe slot. Some devices, like the 480, were damaged because they drew over 120 watts from the PCIe port (AMD BIOS differs significantly from NVIDIA). On NVIDIA systems, whether a GPU uses a 6-pin or 8-pin connector doesn't affect power consumption, as it's controlled by BIOS settings. For a 750 model, it's likely configured to draw only 75 watts. Customizing the BIOS may be necessary to adjust this behavior.
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xXCoolIceBoyXx
06-04-2016, 09:45 AM #5

Continuous drawing above 75 watts from the PCI express port can harm the motherboard, particularly in cheaper models. The RX480 was frequently affected by this problem, prompting manufacturers to release updated drivers and switch to an 8-pin cable rather than the standard 6-pin. Be sure to check the power limits before applying any fix that exceeds 75 watts on your PCIe slot. Some devices, like the 480, were damaged because they drew over 120 watts from the PCIe port (AMD BIOS differs significantly from NVIDIA). On NVIDIA systems, whether a GPU uses a 6-pin or 8-pin connector doesn't affect power consumption, as it's controlled by BIOS settings. For a 750 model, it's likely configured to draw only 75 watts. Customizing the BIOS may be necessary to adjust this behavior.