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AMD driver forcing HPET to enable after restart?

post #1 of 5
Thread Starter 
I've been playing War Thunder and noticed I've been having FPS drop for no reason. 100fps would drop down to 15-20. Come to find out it's an HPET issue. I disabled it and performance was then perfect with the game. But now HPET is re-enabling itself self and others have speculated it's AMD driver/software forcing HPET to re-enable. What's the best way to get in contact with someone who knows there stuff over at AMD?
post #2 of 5
The motherboard has an option in the bios (It should do anyways, some newer boards seem to have hidden it completely) and it sounds like its enabled, see if you can disable it in the bios.
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Piledriver Reborn
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post #3 of 5
Thread Starter 
I appreciate the help. HPET is already disabled in bios. I'm saying AMD driver/software is re-enabling HPET platform clock inside windows for each reboot. This screws up the timer in windows for my computer. It has nothing to do with BIOS, in bios HPET stays disabled. BUT inside windows HPET is re-enabled after a reboot or two by AMD software.
post #4 of 5
Strange... I would have thought windows would not be able to override the bios' setting for HPET.
You can try using Task scheduler to add "bcdedit /deletevalue useplatformclock" so that way every startup the command would be run.
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CoolingOSMonitorKeyboard
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Corsair Modular RM650X Zalman Z11 Plus Corsair Glaive RGB Corsair Polaris 
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CPUMotherboardGraphicsRAM
Intel Core I7 3540M Dell Panther Point Chipset QM77 Intel HD Graphics 4000 16Gb (2x8gb) Hynix DDR3l 
Hard DriveCoolingOSMonitor
128GB Sandisk X110 Dell Stock Fan + Arctic Silver 5 Windows 10 Pro 1366x768 60Hz 
KeyboardPowerMouseAudio
UK-Layout Dell Keyboard 66600mWh Dell Extended Battery Dell Touchpad IDT 92HD93BXX Audio 
CPUMotherboardGraphicsRAM
Intel Core I5 3427U Panasonic CF-AX2 Intel HD 4000 Series 4GB 1333Mhz DDR3L 
Hard DriveCoolingOSOS
128GB Samsung P830 M-Sata SSD Stock Cooler Windows 10 Pro Ubuntu 17.04 
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1366x768 10.1" Touchscreen @ 60Hz Panasonix CF-AX2 EN-GB Qwerty Keyboard Panasonic 29520mWh Panasonic CF-AX2 Touchpad 
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Piledriver Reborn
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Intel I7 4770k 4.5Ghz Asus Z97 P Gigabyte RX 480 4GB (580 BIOS) 16Gb (4x4Gb) @ 1600Mhz 
Hard DriveHard DriveHard DriveCooling
Kingston SSDNow 120GB M.2 Seagate Constellation ES 2TB Sandisk X110 128gb  Enermax UCTP12P 120mm x 5 
CoolingOSMonitorKeyboard
Phanteks U-Type Black Windows 10 Pro Samsung 27" Curved S27D590C Corsair K95 RGB Platinum 
PowerCaseMouseMouse Pad
Corsair Modular RM650X Zalman Z11 Plus Corsair Glaive RGB Corsair Polaris 
AudioOther
Corsair Void Pro 7.1 Ikea Corner Desk 
CPUMotherboardGraphicsRAM
Intel Core I7 3540M Dell Panther Point Chipset QM77 Intel HD Graphics 4000 16Gb (2x8gb) Hynix DDR3l 
Hard DriveCoolingOSMonitor
128GB Sandisk X110 Dell Stock Fan + Arctic Silver 5 Windows 10 Pro 1366x768 60Hz 
KeyboardPowerMouseAudio
UK-Layout Dell Keyboard 66600mWh Dell Extended Battery Dell Touchpad IDT 92HD93BXX Audio 
CPUMotherboardGraphicsRAM
Intel Core I5 3427U Panasonic CF-AX2 Intel HD 4000 Series 4GB 1333Mhz DDR3L 
Hard DriveCoolingOSOS
128GB Samsung P830 M-Sata SSD Stock Cooler Windows 10 Pro Ubuntu 17.04 
MonitorKeyboardPowerMouse
1366x768 10.1" Touchscreen @ 60Hz Panasonix CF-AX2 EN-GB Qwerty Keyboard Panasonic 29520mWh Panasonic CF-AX2 Touchpad 
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Realtek ALC269 
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post #5 of 5
Thread Starter 
Disabling all of AMD services from starting in windows services seems to have solved platformclock being re-enabled.
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