HPET support

J

JoeW

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I have found this function in the BOIS in both my Vail x64 machine and W7 x64 machine. Brief reading suggests this should enable better 64 bit support however on both machines the driver won't install and I get a driver error for PCI Simple Communications Controller.

Does anyone know why the driver won't load or whether this will make any difference to performance on either machine?



W7: 16 GB Ram, SATA II HD on AHCI, Intel DG45ID mobo, HPET enabled

Vail: 6 GB Ram, 2 x SATA II on AHCI Native SATA, Gigabyte P965 mobo, HPET set to 64 bit.
 

My Computer

OS
Windows 7 Ultimate x64
CPU
Intel Core 2 Duo E8400
Motherboard
Gigabyte GA-EP45-UD3P
Memory
16GB OCZ Gold
Graphics Card(s)
NVidia 9600GT 1024MB
Sound Card
Focusrite Saffire Pro 40
Monitor(s) Displays
2x Samsung 2433BW
Screen Resolution
1920 x 1200
Hard Drives
Corsair Force 3 120GB SSD
PSU
BeQuiet Straightpower 600W White
Case
Lian Li Rack
Cooling
Arctic Freezer Pro
Keyboard
MS Wireless Keyboard 3000
Mouse
MS Wireless Mouse 5000
Internet Speed
8MB
I have a Gigabyte board, but AMD, and the HPET was enabled by default. Never had a problem with the driver, however. Would not the driver be included with the chipset driver package?
 

My Computer

Computer Manufacturer/Model Number
Rig 1
OS
Windows 7 Ultimate x64
CPU
AMD Phenom II X4 940 Black Edition @ 3.4GHz (AM2+)
Motherboard
Gigabyte GA-MA790X-UD4P (AM2+)
Memory
Corsair CM2X4096-8500C5 (4 X 2GB)
Graphics Card(s)
XFX Radeon HD 5770 / Diamond Radeon HD 5770 CrossFireX
Sound Card
Asus Xonar DS (PCI)
Monitor(s) Displays
Samsung SyncMaster 932bw+ (3)
Screen Resolution
4320x900
Hard Drives
OCZ Vertex 2 80 GB - Windows 7 System --
WD Caviar Black 1TB - Music, Movies, Vids, Pics --
WD Caviar Black 640GB - User Profiles & Games --
WD My Book 320GB external
PSU
Corsair CMPSU-750TX
Case
Cooler Master HAF 932
Cooling
Corsair Hydro Series H50
Keyboard
Logitech Desktop Wave
Mouse
Logitech LX8 Laser
Internet Speed
20 down / 2 up
Other Info
LG GGC-H20L Blu-Ray / HDDVD combo --
Hauppauge HVR-1250 --
Silverstone MFP-51 --
Logitech Webcam C600
I just disabled it! Ran DPC checker, HPET was causing a 100ms reading. With HPET off, checker reads 5ms. FYI
 

My Computer

Computer Manufacturer/Model Number
DIY #3, #2
OS
W7 Ulti/64, XP Pro/32
CPU
INTEL i7 920 DO, Core2 Duo 6400
Motherboard
GIGABYTE EX58 UD3R-SLI, EP45-UD3R
Memory
KINGSTON DDR3 1333MHz, CORSAIR DDR2 800MHz
Graphics Card(s)
EVGA GTX 260 x2, 8800 GTX
Sound Card
REALTEK HD onboard, ditto
Monitor(s) Displays
SONY 40" BRAVIA LCD
Screen Resolution
1360 X 768
Hard Drives
OCZ VERTEX/RAID0 -3, Vertex 30GB
PSU
COOLERMASTER 900W, ENERMAX 850W
Case
COOLERMASTER HAF 932 x2
Cooling
stock
Keyboard
MS
Mouse
MS
Internet Speed
ADSL 3MB/768KBs
Other Info
amateur enthusiast
How are you getting 5µs? I have disabled HPET and got 100µs down from 150µs.
 

My Computer

OS
Windows 7 Ultimate x64
CPU
Intel Core 2 Duo E8400
Motherboard
Gigabyte GA-EP45-UD3P
Memory
16GB OCZ Gold
Graphics Card(s)
NVidia 9600GT 1024MB
Sound Card
Focusrite Saffire Pro 40
Monitor(s) Displays
2x Samsung 2433BW
Screen Resolution
1920 x 1200
Hard Drives
Corsair Force 3 120GB SSD
PSU
BeQuiet Straightpower 600W White
Case
Lian Li Rack
Cooling
Arctic Freezer Pro
Keyboard
MS Wireless Keyboard 3000
Mouse
MS Wireless Mouse 5000
Internet Speed
8MB
I disabled it too and it dropped to 49μs, with a spike to about 250μs--which was still lower than the 349μs it read with HPET enabled
 

My Computer

Computer Manufacturer/Model Number
Rig 1
OS
Windows 7 Ultimate x64
CPU
AMD Phenom II X4 940 Black Edition @ 3.4GHz (AM2+)
Motherboard
Gigabyte GA-MA790X-UD4P (AM2+)
Memory
Corsair CM2X4096-8500C5 (4 X 2GB)
Graphics Card(s)
XFX Radeon HD 5770 / Diamond Radeon HD 5770 CrossFireX
Sound Card
Asus Xonar DS (PCI)
Monitor(s) Displays
Samsung SyncMaster 932bw+ (3)
Screen Resolution
4320x900
Hard Drives
OCZ Vertex 2 80 GB - Windows 7 System --
WD Caviar Black 1TB - Music, Movies, Vids, Pics --
WD Caviar Black 640GB - User Profiles & Games --
WD My Book 320GB external
PSU
Corsair CMPSU-750TX
Case
Cooler Master HAF 932
Cooling
Corsair Hydro Series H50
Keyboard
Logitech Desktop Wave
Mouse
Logitech LX8 Laser
Internet Speed
20 down / 2 up
Other Info
LG GGC-H20L Blu-Ray / HDDVD combo --
Hauppauge HVR-1250 --
Silverstone MFP-51 --
Logitech Webcam C600
JoeW said:
How are you getting 5µs? I have disabled HPET and got 100µs down from 150µs.
Click to expand...

Well, Its an SSD machine, cpu and ram are OC'd, and I have turned off a lot of windows services. Just lucky I guess??????
Easytune6 was also an issue. I was using it to monitor cpu and mobo temps. Caused a 4000 ms spike when running. I just leave it off now. Monitoring apps will affect this.
 

My Computer

Computer Manufacturer/Model Number
DIY #3, #2
OS
W7 Ulti/64, XP Pro/32
CPU
INTEL i7 920 DO, Core2 Duo 6400
Motherboard
GIGABYTE EX58 UD3R-SLI, EP45-UD3R
Memory
KINGSTON DDR3 1333MHz, CORSAIR DDR2 800MHz
Graphics Card(s)
EVGA GTX 260 x2, 8800 GTX
Sound Card
REALTEK HD onboard, ditto
Monitor(s) Displays
SONY 40" BRAVIA LCD
Screen Resolution
1360 X 768
Hard Drives
OCZ VERTEX/RAID0 -3, Vertex 30GB
PSU
COOLERMASTER 900W, ENERMAX 850W
Case
COOLERMASTER HAF 932 x2
Cooling
stock
Keyboard
MS
Mouse
MS
Internet Speed
ADSL 3MB/768KBs
Other Info
amateur enthusiast
spyknee said:
Well, Its an SSD machine, cpu and ram are OC'd, and I have turned off a lot of windows services. Just lucky I guess??????
Easytune6 was also an issue. I was using it to monitor cpu and mobo temps. Caused a 4000 ms spike when running. I just leave it off now. Monitoring apps will affect this.
Click to expand...


5us... nice! I'm running at 10 or 11 consistently, with HPET enabled I'm at 50 to 60us.

So, how does your machine feel with low DPS latency, any problem running audio/video. I had to do a little more work in Win-7 to get DPC latency down, WinXP didn't require as much tweaking.

Ap
 

My Computer

Computer Manufacturer/Model Number
Assembled in my workshop
OS
Windows 7 Home Premium
CPU
Intel Core 2 Duo @ 3.00gHz
Motherboard
Gigabyte GA-P35-S3G
Memory
4 GB
Graphics Card(s)
ATI Radeon HD 2600 XT
Sound Card
RME 24/96 Card, Realtek Internal Audio PreSonus FireStudio
Monitor(s) Displays
Acer 1917 (x2)
Screen Resolution
1280 x 1024 on both monitors
Hard Drives
Three 250GB Seagate SATA Barracuda 7200rpm
PSU
Rosewill 500-watt
Case
Rosewill mid-tower
Cooling
Noctua NH-U9B (CPU), PwrSupply fan + single large case Fan
Keyboard
Macally w/2/USB ports.
Mouse
Trackman Wheel
Other Info
Event 20/20 bas studio monitors, Yamaha sub.
Rackmount Korg/Roland/Yamaha synthesizers,
Cubase MIDI/audio recording. Sony Soundforge audio/mastering software. CD Architect Mastering. RME & Presonus audio interfaces.
It ranges from 4 to 12.
 

My Computer

Computer Manufacturer/Model Number
DIY #3, #2
OS
W7 Ulti/64, XP Pro/32
CPU
INTEL i7 920 DO, Core2 Duo 6400
Motherboard
GIGABYTE EX58 UD3R-SLI, EP45-UD3R
Memory
KINGSTON DDR3 1333MHz, CORSAIR DDR2 800MHz
Graphics Card(s)
EVGA GTX 260 x2, 8800 GTX
Sound Card
REALTEK HD onboard, ditto
Monitor(s) Displays
SONY 40" BRAVIA LCD
Screen Resolution
1360 X 768
Hard Drives
OCZ VERTEX/RAID0 -3, Vertex 30GB
PSU
COOLERMASTER 900W, ENERMAX 850W
Case
COOLERMASTER HAF 932 x2
Cooling
stock
Keyboard
MS
Mouse
MS
Internet Speed
ADSL 3MB/768KBs
Other Info
amateur enthusiast
I know this is an old post, but if the contributors are still around - Thank You! This helped me...
 

My Computer

OS
Win 7 Pro x64
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