Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
  1. #1
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    i7 8700k OC problem - BCLK stays at 96 instead of 100

    Hello dear ROG enthusiasts

    About 2 weeks ago i got my new Gaming rig after 8 years of abstinence from PC Gaming.
    Had alot of fun building my PC and delidding my 8700k and ive been tinkering with my OC ever since. Im new to overclocking and read alot about it.

    Yet still i was wondering for quite some time why my OC was always lower than showed in the UEFI, even the stock OC only went to 4.5ghz on one core, all 6 cores with MCE. Took me as a noob way to long to realize that my BCLK once booted is only 96 instead of 100.

    i took some pictures from all my UEFI settings (sorry in case i took some unneccessary pics) and also 2 pics of a cinebench with CPU-Z open and HWinfo

    heres the link https://imgur.com/a/tXgArhH

    things i already tried:
    - Updating UEFI to (0616, previously 0615, same results)
    - resetting CMOs and start over (multiple times)
    - Enabling XMP
    - Enabling MCE
    - Enabling XMP + MCE
    - Set an AVX offset of 1 results in another 100mhz less
    - Setting LLC to level 3-7
    - Power management set to Auto or Performance
    - SVID to Auto or Best Case scenario

    My MB is a ROG STRIX Z370-F

    if you guys need any more information just ask! im hyped to keep trying thanks for any help in advance!

  2. #2
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    no one an idea? all the stuff about the topic i find online is about really minor diffrences, like 99.8. My 96 severly cuts my OC down from 4.8ghz (which is only a starting point) to 4.6ghz.

    some people mentioned its a software issue, but i get the same readings in all the monitoring softwares i tried.

    do i need to replace the MB? its pretty much the last idea i got unless someone else may be able to help me out

  3. #3
    ROG Guru: Orange Belt Array Snakeyes's Avatar
    Join Date
    Dec 2012
    Reputation
    42
    Posts
    276

    What happens if you set your BCLK at say, 105? Or any number above 100
    NAME THE SANDWICH: – White Bread, Lots of Baloney, Russian dressing and served with a small pickle.?


    Intel Core i7 8700K @5.1 Stable Delidded
    Asus Maximus X Code

    16 GB
    G skill TridentZ DDR4 ​4266 (PC4 34100)
    Corsair HX1000i digital
    EVGA 1070 GTX TiSuperclocked+
    Samsung NVMe SSD 960 pro M. 2
    Samsung 860 Pro
    Watercooled with EK block radiator fans etc.


  4. #4
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    that takes it to around 100 in windows. but then bios shows 5ghz and CPU-Z only 4.8, so i dont know which numbers to believe :/ would like to go over 5ghz but it seems like playing with fire around a gasoline tank :P

    thanks for your imput tho

  5. #5
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    so i did a clean windows install and resetted my bios back to factory version and just downloaded CPU-Z and .. its 96 base clock.
    im soooo confuused man just why?

    i noticed that task manager reports the right overclock... but everyone on the internet says to not trust TM and go for CPU-Z.

    just want to have some fun with overclocking

  6. #6
    ROG Guru: Orange Belt Array Snakeyes's Avatar
    Join Date
    Dec 2012
    Reputation
    42
    Posts
    276

    Here are a couple of suggestions.


    If your BLCK is truly set at 96, it should reduce your memory speeds to reflect the same ratio. Does it do that? If it does, then try playing with increases in your BLCK till you show a BLCK at 100. That becomes your new standard and you can start messing with overclocking.
    NAME THE SANDWICH: – White Bread, Lots of Baloney, Russian dressing and served with a small pickle.?


    Intel Core i7 8700K @5.1 Stable Delidded
    Asus Maximus X Code

    16 GB
    G skill TridentZ DDR4 ​4266 (PC4 34100)
    Corsair HX1000i digital
    EVGA 1070 GTX TiSuperclocked+
    Samsung NVMe SSD 960 pro M. 2
    Samsung 860 Pro
    Watercooled with EK block radiator fans etc.


  7. #7
    ROG Guru: Yellow Belt Array Legolas PC Specs
    Legolas PC Specs
    MotherboardMaximus X Hero Wifi AC
    ProcessorIntel Core i7 8600k oc 5Ghz
    Memory (part number)Samsung DDR4 16GB
    Graphics Card #1ASUS NVIDIA GTX 1080
    MonitorASUS MS246
    Storage #1Samsung MZVPV256
    Storage #2Samsung MZVPV256
    CPU CoolerCorsair H110I v2
    Power SupplyPC 1200W Turbo-Cool 1200
    Keyboard ASUS SK2045

    Join Date
    Nov 2015
    Reputation
    10
    Posts
    242

    Sorry to hear abou that. I saw that you delid the processor. Kindly double check if the CPU has proper thermal paste on the delidded processor.
    Did you try running at default , does the BCLK go to 96 as well?
    For Windows, please makes sure you are running at High performance mode for highest BCLK/Frequency in Power options.
    Sincerely,
    Legolas

  8. #8
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    yes its the same for my memory speeds.

    task manager shows the "right" OC, its at 5ghz when i set it to a 50 multiplier. that would not be the same with 105, so i dont know which reading to trust. usually people report a lower clock in taskmanager then CPU-Z, for me its the opposite^^ i guess i just try it with the increased BCLK and go with the CPU-Z readings.

    @Legolas yes its the same at default settings, even with the factory update. i had this problem before delidding aswell, just didnt really bother to try and fix it because i thought i'll fix it when temps will not be a problem. my windows settings are all on high performence, and the CPU power options are all at 100%

  9. #9
    ROG Guru: Orange Belt Array Snakeyes's Avatar
    Join Date
    Dec 2012
    Reputation
    42
    Posts
    276

    If your memory speeds are being down clocked as well, then I would increase the BLCK in bios so that CPU-z is showing 100. Make a note of that adjustment and now play with overclocking with the new BLCK levels. What is happening to your motherboard is unusual, but might not interfere with your overclocking efforts.
    Just make sure that when your adjusted BLCK is showing at 100 on CPU-z that your memory also showing the appropriately corrected values. If not, your problem could be more serious and I would discourage messing with the system. Could be RMA time.
    NAME THE SANDWICH: – White Bread, Lots of Baloney, Russian dressing and served with a small pickle.?


    Intel Core i7 8700K @5.1 Stable Delidded
    Asus Maximus X Code

    16 GB
    G skill TridentZ DDR4 ​4266 (PC4 34100)
    Corsair HX1000i digital
    EVGA 1070 GTX TiSuperclocked+
    Samsung NVMe SSD 960 pro M. 2
    Samsung 860 Pro
    Watercooled with EK block radiator fans etc.


  10. #10
    ROG Member Array Fourside PC Specs
    Fourside PC Specs
    MotherboardAsus ROG STRIX Z370-F
    ProcessorI7 8700k Delidded
    Memory (part number)32GB G.Skill Trident Z
    Graphics Card #1Sapphire RX 580 Nitro+
    Storage #11TB Crucial SSD
    CPU CoolerAlpenföhn Ben Nevis Advanced RGB
    CaseThermaltake Versa 21 RGB
    Power SupplyBe Quiet 650W

    Join Date
    May 2018
    Reputation
    10
    Posts
    7

    thanks alot for the replies i did try to increase the BCLK to 104.5 which gave it a BCLK of 100.3 in CPU-Z and HWinfo, however i could'nt get my RAM stable with this. i tested with Prime95 Blend test and it would get errors after max 3 minutes even with ridiculous voltages to VCCSA and VCCIO (1.3v and DRAM voltage of 1.4)

    with that i then simply tryd going back to 100 BCLK (96 in CPU-Z) but setting a multiplier of 53 and 1.4 Vcore. CPU-Z said its about 5085ghz, i then started prime95 but my PC instantly crashed, went to 1.45 Vcore but got the same this time after maybe 10 seconds of testing.

    think it is really a MB issue sadly. i will order a new one and test again, if everything goes well i will send it in for RMA. thanks alot

Page 1 of 2 1 2 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •