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Author Topic: Manually underclocking RAM frequency?  (Read 5419 times)
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numlog
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« Reply #15 on: January 27, 2019, 11:56:01 pm »

just want to add something that might be very important for some.
BIOS settings got wiped today after a hardware change, after changing back all the settings and booting up the sound was not good at all. rebooted into BIOS and there was one setting I didnt disable: CPU SVID support

Disabling SVID sounded better with default CPU setting when testing it way back but according to some post in an overclocking forum SVID  should be disabled specifically when you're using manual core voltage,
its not overriding the settings at least (BIOS still shows the core voltage I set when SVID was enabled) but it critical for good sound.
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PC: Ryzen 1700(Nofan), 2133MHz 2x4GB, GPU, Gigabyte A320
OS drive: Optane 16GB M.2, OS: S2019 Core,
modded PCIe SATA card + modded Juli@ XTE I2S output , Corsair Rm650x MoBo PSU, 12V CPU LPS .
PeterSt
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« Reply #16 on: January 28, 2019, 08:32:40 am »

Happy
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XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 10/20 cores) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 30/-/1/1/1/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 15ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 140.19  (max 140.19) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = 35 / Nervous Rate = 10 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / *Arc Prediction Filtering (16x)* / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^2*A:B-W-Y-R, B:B-W-R* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> *Blaxius^2 A:B-R, B:B-R* Interlink -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
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*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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numlog
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« Reply #17 on: March 08, 2019, 11:23:49 pm »

This is probably obvious to most but RAM latency can be adjusted very easily, just like clock speed.


When underclocking, if RAM timing is set to auto latency will be lowered automatically depending on how low the clock speed is set, this could account for some of sound difference with underclocking, which itself might make things worse.

The latency is adjusted to very safe calculated values that corresponds to the decrease in speed, with manual setting I was able to siginificantly timing settings at max 2133MHz speed. e.g CAS went from 14 to 5 and somehow works with CPUz reporting it, others were also lowered to a similar degree.
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PC: Ryzen 1700(Nofan), 2133MHz 2x4GB, GPU, Gigabyte A320
OS drive: Optane 16GB M.2, OS: S2019 Core,
modded PCIe SATA card + modded Juli@ XTE I2S output , Corsair Rm650x MoBo PSU, 12V CPU LPS .
PeterSt
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« Reply #18 on: March 09, 2019, 11:26:15 am »

Quote
This is probably obvious to most but RAM latency can be adjusted very easily, just like clock speed.

Laurence, maybe not. Or generally not, I estimate.

Quote
e.g CAS went from 14 to 5

I suppose the question is odd, but what would happen if we'd force the automatically applied (right ?) 5 again to 14 or anything else "too high" ? Can that technically be done ?

Thanks,
Peter
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For the Stealth III LPS PC :
W10-14393.0 - Oct 31, 2018 (2.10)
XXHighEnd Mach III Stealth LPS PC -> Xeon Scalable 14/28 core with Hyperthreading On (set to 10/20 cores) @~660MHz, 48GB, Windows 10 Pro 64 bit build 14393.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 30/-/1/1/1/ Q1Factor = 10 / Dev.Buffer = 4096 / ClockRes = 15ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 140.19  (max 140.19) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / Stop Desktop, Remaining, WASAPI and W10 services / Use Remote Desktop / Keep LAN - Not Persist / WallPaper On / OSD Off (!) / Running Time Off / Minimize OS / XTweaks : Balanced Load = 35 / Nervous Rate = 10 / Cool when Idle = n.a / Provide Stable Power = 0 / Utilize Cores always = 1 / Time Performance Index = Optimal / Time Stability = Stable / *Arc Prediction Filtering (16x)* / Always Clear Proxy before Playback = On -> USB3 from MoBo -> Lush^2*A:B-W-Y-R, B:B-W-R* USB 1m00 -> Phisolator 24/768 Phasure NOS1a/G3 75B (BNC Out) async USB DAC, Driver v1.0.4b (16ms) -> B'ASS Current Amplifier -> *Blaxius^2 A:B-R, B:B-R* Interlink -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere (also from the PC).

For a general PC :
W10-10586.0 - May 2016 (2.05+)
*XXHighEnd PC -> I7 3930k with Hyperthreading On (12 cores)* @~500MHz, 16GB, Windows 10 Pro 64 bit build 10586.0 from RAM, music on LAN / Engine#4 Adaptive Mode / Q1/-/3/4/5 = 14/-/1/1/1 / Q1Factor = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Memory = Straight Contiguous / Include Garbage Collect / SFS = 0.10  (max 60) / not Invert / Phase Alignment Off / Playerprio = Low / ThreadPrio = Realtime / Scheme = Core 3-5 / Not Switch Processors during Playback = Off/ Playback Drive none (see OS from RAM) / UnAttended (Just Start) / Always Copy to XX Drive (see OS from RAM) / All Services Off / Keep LAN - Not Persist / WallPaper On / OSD On / Running Time Off / Minimize OS / XTweaks : Balanced Load = *43* / Nervous Rate = 1 / Cool when Idle = 1 / Provide Stable Power = 1 / Utilize Cores always = 1 / Time Performance Index = *Optimal* / Time Stability = *Stable* / Custom Filter *Low* 705600 / -> USB3 *from MoBo* -> Clairixa USB 15cm -> Intona Isolator -> Clairixa USB 1m80 -> 24/768 Phasure NOS1a 75B (BNC Out) async USB DAC, Driver v1.0.4b (4ms) -> Blaxius BNC interlink *-> B'ASS Current Amplifier /w Level4 -> Blaxius Interlink* -> Orelo MKII Active Open Baffle Horn Speakers.
Removed Switching Supplies from everywhere.

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numlog
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« Reply #19 on: March 09, 2019, 11:50:19 pm »

It allows it to go higher but how high before something goes wrong im not sure. Usually its needed for stability when overclocking.

RAM speed is supposed to be an equal factor in the ''true latency'' of RAM, so you could do it the opposite way with overclocking - maybe thats better, but very high speeds are only supported with recent hardware. (my mobo and CPU are limited to 2133MHz)

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PC: Ryzen 1700(Nofan), 2133MHz 2x4GB, GPU, Gigabyte A320
OS drive: Optane 16GB M.2, OS: S2019 Core,
modded PCIe SATA card + modded Juli@ XTE I2S output , Corsair Rm650x MoBo PSU, 12V CPU LPS .
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