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  1. #11
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
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    These performance scores are all taken over a sequential one-way time period. They could indicate the SATA SSD is declining, not the system running it. They could indicate some other system component (CPU, RAM, operating system, etc) is declining or has been changed over time, not necessarily the BIOS firmware.

    You could rollback to older BIOS versions to measure performances again. Determine if it's the BIOS or the drive which has slowed things down. With multiple benchmark softwares. On the same hardware, on the same operating system. CrystalDiskMark is good but it's still a synthetic test, numerical discrepancies on one synthetic test could indicate the testing software itself has changed, not the hardware it's measuring.
    "All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams

    [/Korth]

  2. #12
    ROG Enthusiast Array pokuly PC Specs
    pokuly PC Specs
    MotherboardASUS PRIME Z370-A
    ProcessorSpectre inside i7 8700k
    Memory (part number)G.Skill Trident Z F4-3200C14D-32GTZSW
    Graphics Card #1EVGA GTX 970 SC
    MonitorASUS VN279QLB@75Hz
    CPU CoolerThermalright Macho
    Power SupplySuperflower 550W

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    Quote Originally Posted by Korth View Post
    These performance scores are all taken over a sequential one-way time period. They could indicate the SATA SSD is declining, not the system running it. They could indicate some other system component (CPU, RAM, operating system, etc) is declining or has been changed over time, not necessarily the BIOS firmware.

    You could rollback to older BIOS versions to measure performances again. Determine if it's the BIOS or the drive which has slowed things down. With multiple benchmark softwares. On the same hardware, on the same operating system. CrystalDiskMark is good but it's still a synthetic test, numerical discrepancies on one synthetic test could indicate the testing software itself has changed, not the hardware it's measuring.
    Easiest comparison is to disable the Spectre patch in OS with the InSpectre tool or over registry and bench before/after reboot.

  3. #13
    New ROGer Array
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    Quote Originally Posted by Mr.Wolf View Post
    Sorry, I'm not going to install magician, I don't like like and don't use it.
    I don't have any SSD performance problem before or after the new bios and updates.

    I have an old win7 as-ssd screenshot (think it's from 2016) in this same HW to compare (or I could read any ssd review for my model).

    What's your cpu?
    6700k and 32GB 8 x 4 memory.

  4. #14
    New ROGer Array
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    Quote Originally Posted by Korth View Post
    These performance scores are all taken over a sequential one-way time period. They could indicate the SATA SSD is declining, not the system running it. They could indicate some other system component (CPU, RAM, operating system, etc) is declining or has been changed over time, not necessarily the BIOS firmware.

    You could rollback to older BIOS versions to measure performances again. Determine if it's the BIOS or the drive which has slowed things down. With multiple benchmark softwares. On the same hardware, on the same operating system. CrystalDiskMark is good but it's still a synthetic test, numerical discrepancies on one synthetic test could indicate the testing software itself has changed, not the hardware it's measuring.
    I rolled back to older BIOS as I said. As a result of that, the speed has been restored. That's why I think I have an issue with BIOS. I've tested with AS Benchmark, Magician, Crystaldiskmark. I'll test my SSD with other tools later. And the users who from the posts that I linked have same issue with their own BIOS.

  5. #15
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    It could be some incompatibility with your SSD from the new bios, from intel microcode or from spectre patch.
    If you still have the 3703 bios flashed, you could try to disable spectre patch in windows like pokuly said.
    You can also load the new microcode using windows catalog update and having the old bios, meaning if problem is the new bios, but not the new MC, you can be protected against spectre with the old bios.

    It doesn't affect my SSD, but I have a different model.
    Last edited by Mr.Wolf; 03-13-2018 at 12:17 AM.

  6. #16
    ROG Member Array Kincaid PC Specs
    Kincaid PC Specs
    MotherboardASUS ROG Maximus VIII Extreme [BIOS 3801]
    ProcessorIntel Core i7 6700K
    Memory (part number)G.Skill Trident Z 32GB DDR4 3200 [F4-3200C16Q-32GTZB]
    Graphics Card #1ASUS ROG Strix GeForce RTX 2060 OC
    Sound CardASUS SupremeFX 2015 [on-board]
    MonitorSamsung SyncMaster PX2370
    Storage #1Samsung EVO 850 1TB
    Storage #2Samsung EVO 850 1TB
    CPU CoolerCorsair Hydro H100i v2
    CaseCooler Master Cosmos II
    Power SupplyPC Power & Cooling Silencer MK III 1200W
    Keyboard ASUS ROG Claymore [Red]
    Mouse Corsair M65 Pro RGB
    Headset Logitech G933 Artemis Spectrum 7.1
    Mouse Pad Razer Sphex v2
    Headset/Speakers Logitech Z-5500 THX-Certified 5.1
    OS Windows 10 Pro x64, Linux Lite & Manjaro
    Network RouterASUS RT-AC5300
    Kincaid's Avatar
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    The microcode update as part of BIOS 3703 or Windows KB4090007 definitely hurts IOPS, period. If you want to protect against Spectre then that's the price we're all going to pay, unfortunately. It's not ASUS' fault.

    ASUS Maximus VIII Extreme [BIOS 3504] & Samsung EVO 850 1TB without KB4090007:

    Sequential (MB/s) Read/Write:

    543/ 510

    Random (IOPS) Read/Write:

    80,810 / 69,335
    ASUS Maximus VIII Extreme [BIOS 3504] & Samsung EVO 850 1TB with KB4090007:

    Sequential (MB/s) Read/Write:

    542 / 509

    Random (IOPS) Read/Write:

    52,001 / 45,898
    If I switch back and forth with InSpectre as I have done numerous times then the IOPS will predictably go up and down.

  7. #17
    ROG Enthusiast Array
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    I can replicate your results in magician, but maybe a big part of the problem is from samsung magician bench.

    Please open task manager and show all logical cores while you run the magician test.
    Here in my 6600K@4.5GHz magician makes 100% load in only 1 core in some parts of the test, probably when doing random R/W with high queue deep.
    When I run same test in AS SSD it makes like 30% load in all my 4 cores.
    I can't replicate the low IOPs in AS SSD.

    It's not normal 100% load in only 1 core to bench SSD IOs, it doesn't reflect real life.
    It does 100% load in only 1 core with or without spectre patch enable.
    We knew spectre has some cpu hit, maybe adding that to already 1 core at 100% lowers the bench.

    See if you can replicate this.

    -EDIT-
    My personal conclusions from all the tests in my system:
    1. We already knew spectre/meltdown patchs reduces cpu speed. Intel says it gets 6% to 10% slower in recent cpus (conservative intel values) and more in older cpus.
    2. Magician bench is a bad test because it runs single core and doesn't reflect real life. Here it does 100% cpu load in only 1 core, before and after spectre patch, while all other cores are idle.
    3. There is no real world SSD performance loss after the patchs for my tested SSDs, AS SSD and other benchs show that, problem is magician bench is not multithread.
    4. SATA protocol has too much CPU overhead, we need something better.
    Last edited by Mr.Wolf; 03-13-2018 at 02:15 PM.

  8. #18
    ROG Guru: White Belt Array aceisme PC Specs
    aceisme PC Specs
    MotherboardASUS Maximus VIII Hero
    Processori7-6700K
    Memory (part number)G.Skill Trident Z F4-3200C16D-16GTZB 16GB
    Graphics Card #1EVGA GTX 980TI Classified
    Sound CardOn board sound
    MonitorASUS ROG Swift PG278Q
    Storage #1Samsung 950 Pro Series 512GB M.2 SSD
    Storage #2Intel SSD 540s - 240GB - SSDSC2CW240A3
    CPU CoolerCorsair H115i
    CaseCorsair Obsedian 450D
    Power SupplyCorsair H850i
    Keyboard Logitech G910
    Mouse Logitech G502
    OS WIN10 Enteprise

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    Updated from BIOS3504 to 3703 and I see no major SSD and M.2 benchmark differences between the two BIOS versions. That includes Samsung Magician. Sadly, I can't say the same about high load multithread benchmarks. Almost 10 precent performance hit.
    Last edited by aceisme; 03-15-2018 at 12:29 PM.

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