F5F Stay Refreshed Hardware Desktop No, 4G decoding is not automatically disabled; it depends on the device settings and configuration.

No, 4G decoding is not automatically disabled; it depends on the device settings and configuration.

No, 4G decoding is not automatically disabled; it depends on the device settings and configuration.

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Flawly_
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03-02-2018, 02:45 PM
#1
Last night I decided to test Smart access memory, so I turned it on in the BIOS. I’m not sure exactly how, but it seems to have turned on 4G decoding and HD audio too. When I turned off SAM, those features stayed enabled. Should I disable the 4G decoding as well?
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Flawly_
03-02-2018, 02:45 PM #1

Last night I decided to test Smart access memory, so I turned it on in the BIOS. I’m not sure exactly how, but it seems to have turned on 4G decoding and HD audio too. When I turned off SAM, those features stayed enabled. Should I disable the 4G decoding as well?

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Sewaddle
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6
03-02-2018, 02:45 PM
#2
It has no disadvantages, so keep it as is. This feature is typically turned off by default but is necessary for reBar/SAM to function.
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Sewaddle
03-02-2018, 02:45 PM #2

It has no disadvantages, so keep it as is. This feature is typically turned off by default but is necessary for reBar/SAM to function.

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CaptainTr0ll
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99
03-02-2018, 02:45 PM
#3
4g decoding optimizes how your device handles data streams, improving performance by reducing latency and enhancing streaming efficiency. With your setup, it should help maintain smoother gameplay even with limited RAM and GPU specs.
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CaptainTr0ll
03-02-2018, 02:45 PM #3

4g decoding optimizes how your device handles data streams, improving performance by reducing latency and enhancing streaming efficiency. With your setup, it should help maintain smoother gameplay even with limited RAM and GPU specs.

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Mandy2727
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231
03-02-2018, 02:45 PM
#4
It's a memory access range configuration. I will have zero effect on gaming (aside from the previously discussed requirement to have it on with SAM/reBAR).
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Mandy2727
03-02-2018, 02:45 PM #4

It's a memory access range configuration. I will have zero effect on gaming (aside from the previously discussed requirement to have it on with SAM/reBAR).

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Dimond_miner27
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03-02-2018, 02:45 PM
#5
As mentioned earlier, this setup offers no disadvantages. When using 4G decoding, the CPU can map PCIe devices into memory areas beyond the 4 GB limit. This is essential for reBar/SAM functionality since it enables full GPU memory access at once—cards typically exceed 4 GB. For other devices, it should have minimal impact but still permits 64-bit aware drivers to operate in memory regions beyond what 32-bit processes can see.
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Dimond_miner27
03-02-2018, 02:45 PM #5

As mentioned earlier, this setup offers no disadvantages. When using 4G decoding, the CPU can map PCIe devices into memory areas beyond the 4 GB limit. This is essential for reBar/SAM functionality since it enables full GPU memory access at once—cards typically exceed 4 GB. For other devices, it should have minimal impact but still permits 64-bit aware drivers to operate in memory regions beyond what 32-bit processes can see.

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