**Official Gigabyte Z77X-UD5H Discussion Thread**

[P3N9U1N]

Still getting DPC latency issues on startup.

As someone noted on page 30 about disabling easytune, I do not have it installed and have never installed it (unchecked the box with the setup CD). I have to wait anywhere from 5 seconds to 15 minutes for the DPC latency to stabilize to under 100 us.

Ive disabled many many devices and drivers and nothing has worked. New nvidia drivers, new usb drivers, turning off integrated GPU, turning of turbo bosst and intel quick start technology and nothing works.

looks like this at startup.

then will fall to under 100 us from anywhere up to 15 minutes after boot up.

Also changed my overclock and nothing, it was like this at stock speeds so I know that isn't the problem

Edit: I have also tried disabling and enabling High Precision Event Timer and still doesn't change a thing.

 

[itchy]

Yer something wrong there i checked mine with DPC and its green as grass!!!

 

[P3N9U1N]

Yer something wrong there i checked mine with DPC and its green a grass!!!

Been like since the day I got it, not something that bothers me to the extent of RMA but definitely something I would like to get rid of. It always drops to low levels so its not a permanent problem, just annoying to have to wait for 10 - 15 minutes at every boot up before you can listen to any sound without crackling.

 

[itchy]

Been like since the day I got it, not something that bothers me to the extent of RMA but definitely something I would like to get rid of. It always drops to low levels so its not a permanent problem, just annoying to have to wait for 10 - 15 minutes at every boot up before you can listen to any sound without crackling.

Do you have a PCi sound card or are you using onboard?

This board dont have a real PCI interface its software emulation that could be the problem!!

I use xonar D2 in the PCI I aint had any problems but I have read about people having problems with the PCI slot on this board.

 

[bulldog147]

Maybe gigabyte will admitted and knowedge the fault on this board and could offer you free upgrade to next level board. We only wish! Not a chance!

 

[wazza300]

Still getting DPC latency issues on startup.

As someone noted on page 30 about disabling easytune, I do not have it installed and have never installed it (unchecked the box with the setup CD). I have to wait anywhere from 5 seconds to 15 minutes for the DPC latency to stabilize to under 100 us.

Ive disabled many many devices and drivers and nothing has worked. New nvidia drivers, new usb drivers, turning off integrated GPU, turning of turbo bosst and intel quick start technology and nothing works.

looks like this at startup.

then will fall to under 100 us from anywhere up to 15 minutes after boot up.

Also changed my overclock and nothing, it was like this at stock speeds so I know that isn't the problem

Edit: I have also tried disabling and enabling High Precision Event Timer and still doesn't change a thing.

seems to be when the pc warms up the latency drops? what hdd's are you using? and tested with just one memory stick to rule out that?

 

[covenantuk]

So, do you want to grovel and take back the negative comments about the board?

He is right about the USB though - it's a bit flaky on this board. Some devices bdo make it unstable. I plugged in a Razer Boomslang yesterday and it bluescreened under load with a usb.sys error. Removed the mouse and it's been fine since.

 

[P3N9U1N]

seems to be when the pc warms up the latency drops? what hdd's are you using? and tested with just one memory stick to rule out that?

I'd say that's pretty accurate, but can be within 5 seconds that it stabilizes. Resorting to running prime95 on startup as it seems to help stabilize it quicker. And no I'm not using a PCI soundcard , Just onboard sound, 1tb hitatchi HD and my boot drive is ocz agility 3 60gb

 

[wazza300]

what voltages are you using atm for cpu,cpu/vtt and dram? could be not enough dram voltage if its suffering from cold

 

[P3N9U1N]

what voltages are you using atm for cpu,cpu/vtt and dram? could be not enough dram voltage if its suffering from cold

CPU is at 1.315mv and RAM is auto'd at 1.5v. It does it at stock clock and voltage so I don't think that's the issue. Though my RAM is spec'd at 1.65v I don't think with this chip that 1.65v is healthy for my CPU am I right?, I know with Sandybridge 1.65v was not advised.

If it was running all day long, (which it runs for many hours every day) and I were to reboot it after being on for say 8 hours, the DPC latency would still go erratic for 5 seconds - 15 minutes

 

[wazza300]

CPU is at 1.315mv and RAM is auto'd at 1.5v. It does it at stock clock and voltage so I don't think that's the issue. Though my RAM is spec'd at 1.65v I don't think with this chip that 1.65v is healthy for my CPU am I right?, I know with Sandybridge 1.65v was not advised.

even at stock things sometimes need tweaking,i dont think 1.65v applies to ivybridge but you shouldnt need that much anyway,i would set dram to 1.55v and see if its any better,your well within intel safe limits and even im running 1.55v dram on sb

 

[P3N9U1N]

even at stock things sometimes need tweaking,i dont think 1.65v applies to ivybridge but you shouldnt need that much anyway,i would set dram to 1.55v and see if its any better,your well within intel safe limits and even im running 1.55v dram on sb

I'll try that now and report back, thanks

edit: changed RAM to 1.55v and still DPC latency is erratic.

 

[P3N9U1N]

Double post I know and I apologize.

Just started up DPC latency monitor and here is the result. I have a rough idea what I'm looking at but I'm sure someone else here knows more then me.

Spoiler

CONCLUSION
_________________________________________________________________________________________________________
Your system seems to have difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
LatencyMon has been analyzing your system for 0:00:44 (h:mm:ss) on all processors in the system.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: P3N9U1N-DESKTOP
OS version: Windows 7 , 6.1, build: 7600 (x64)
CPU: GenuineIntel Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16341 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3501.0 MHz
Measured CPU speed: 2896.0 MHz (approx.)

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.


_________________________________________________________________________________________________________
MEASURED KERNEL TIMER LATENCIES
_________________________________________________________________________________________________________
Highest measured kernel timer latency (µs): 1970.969223


_________________________________________________________________________________________________________
MEASURED SMIs AND CPU STALLS
_________________________________________________________________________________________________________
Highest measured SMI, IPI or CPU stall (µs) 12.283827


_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
Highest DPC routine execution time (µs): 1639.855755
Driver with highest DPC routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Highest reported total DPC routine time (%): 0.021385
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 306.97 , NVIDIA Corporation

Total time spent in DPCs (%) 0.112782

DPC count (execution time <250 µs): 96409
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 0
DPC count (execution time 1000-1999 µs): 1
DPC count (execution time 2000-3999 µs): 0
DPC count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
Highest ISR routine execution time (µs): 1862.622394
Driver with highest ISR routine execution time: HECIx64.sys - Intel(R) Management Engine Interface, Intel Corporation

Highest reported total ISR routine time (%): 0.051418
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0.110190

ISR count (execution time <250 µs): 76119
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 1
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
Process with highest pagefault count: none

Total number of hard pagefaults 213
Hard pagefault count of hardest hit process: 156
Highest hard pagefault resolution time (µs): 869.035133
Total time spent in hard pagefaults (%): 0.015035
Number of processes hit: 0


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 0.894719
CPU 0 ISR highest execution time (µs): 1862.622394
CPU 0 ISR total execution time (s): 0.393573
CPU 0 ISR count: 76120
CPU 0 DPC highest execution time (µs): 1639.855755
CPU 0 DPC total execution time (s): 0.397077
CPU 0 DPC count: 95146
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.002817
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 0.0
CPU 1 DPC total execution time (s): 0.0
CPU 1 DPC count: 0
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 0.018588
CPU 2 ISR highest execution time (µs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 41.463011
CPU 2 DPC total execution time (s): 0.001877
CPU 2 DPC count: 422
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 0.002988
CPU 3 ISR highest execution time (µs): 0.0
CPU 3 ISR total execution time (s): 0.0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (µs): 0.0
CPU 3 DPC total execution time (s): 0.0
CPU 3 DPC count: 0
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 0.025407
CPU 4 ISR highest execution time (µs): 0.0
CPU 4 ISR total execution time (s): 0.0
CPU 4 ISR count: 0
CPU 4 DPC highest execution time (µs): 41.741217
CPU 4 DPC total execution time (s): 0.001847
CPU 4 DPC count: 428
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 0.002468
CPU 5 ISR highest execution time (µs): 0.0
CPU 5 ISR total execution time (s): 0.0
CPU 5 ISR count: 0
CPU 5 DPC highest execution time (µs): 0.0
CPU 5 DPC total execution time (s): 0.0
CPU 5 DPC count: 0
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 0.024506
CPU 6 ISR highest execution time (µs): 0.0
CPU 6 ISR total execution time (s): 0.0
CPU 6 ISR count: 0
CPU 6 DPC highest execution time (µs): 48.167952
CPU 6 DPC total execution time (s): 0.002031
CPU 6 DPC count: 414
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 0.003891
CPU 7 ISR highest execution time (µs): 0.0
CPU 7 ISR total execution time (s): 0.0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (µs): 0.0
CPU 7 DPC total execution time (s): 0.0
CPU 7 DPC count: 0
_________________________________________________________________________________________________________

 

[wazza300]

im just guessing as something warming up and the latency stops,could be ram i dont know,another thing is hdd if you have any that enters sleep mode after startup? cant think whatelse you could try

you could run memtest86 and see if any errors crop up,and with 16gb of ram you might need the full 1.6-1.65v

 

[P3N9U1N]

im just guessing as something warming up and the latency stops,could be ram i dont know,another thing is hdd if you have any that enters sleep mode after startup? cant think whatelse you could try

you could run memtest86 and see if any errors crop up,and with 16gb of ram you might need the full 1.6-1.65v

Don't use sleep or hibernate mode, just stays on or off. Iv'e ran memtest a few times in the past few months (after I got this board) and it showed no errors. I'll wait and see what someone else says about 1.65v on ivy and see what happens.

Appreciate your time

 

[bulldog147]

Set ram at 1.65 it won't harm your cpu anyway.

 

[P3N9U1N]

Set ram at 1.65 it won't harm your cpu anyway.

Did that just now and DPC still eratic. Tad annoying but its something I can live with

 

[wazza300]

i was thinking of hdd's entering sleep/power saving mode,not your pc

heres the latest beta for that board,f15t

http://www.mediafire.com/?bbjozz8v35tq30i

 

[atheos]

Here is my DPC latency monitor result.

Spoiler

_________________________________________________________________________________________________________
CONCLUSION
_________________________________________________________________________________________________________
Your system seems to have difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines executed by a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
LatencyMon has been analyzing your system for 0:03:08 (h:mm:ss) on all processors in the system.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: KRYS-IVY
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
CPU: GenuineIntel Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16337 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 3503.0 MHz
Measured CPU speed: 2359.0 MHz (approx.)

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.


_________________________________________________________________________________________________________
MEASURED KERNEL TIMER LATENCIES
_________________________________________________________________________________________________________
Highest measured kernel timer latency (µs): 1962.070342


_________________________________________________________________________________________________________
MEASURED SMIs AND CPU STALLS
_________________________________________________________________________________________________________
Highest measured SMI, IPI or CPU stall (µs) 82.422737


_________________________________________________________________________________________________________
REPORTED DPCs
_________________________________________________________________________________________________________
Highest DPC routine execution time (µs): 1136.359692
Driver with highest DPC routine execution time: ndis.sys - NDIS 6.20 driver, Microsoft Corporation

Highest reported total DPC routine time (%): 0.242146
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.

Total time spent in DPCs (%) 0.470158

DPC count (execution time <250 µs): 1602485
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 19
DPC count (execution time 1000-1999 µs): 2
DPC count (execution time 2000-3999 µs): 0
DPC count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED ISRs
_________________________________________________________________________________________________________
Highest ISR routine execution time (µs): 128.736512
Driver with highest ISR routine execution time: USBPORT.SYS - USB 1.1 & 2.0 Port Driver, Microsoft Corporation

Highest reported total ISR routine time (%): 0.037374
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0.073232

ISR count (execution time <250 µs): 368663
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0


_________________________________________________________________________________________________________
REPORTED HARD PAGEFAULTS
_________________________________________________________________________________________________________
Process with highest pagefault count: none

Total number of hard pagefaults 2402
Hard pagefault count of hardest hit process: 1789
Highest hard pagefault resolution time (µs): 6446.722238
Total time spent in hard pagefaults (%): 0.043287
Number of processes hit: 0


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 11.550012
CPU 0 ISR highest execution time (µs): 128.736512
CPU 0 ISR total execution time (s): 1.105235
CPU 0 ISR count: 368663
CPU 0 DPC highest execution time (µs): 1136.359692
CPU 0 DPC total execution time (s): 6.963310
CPU 0 DPC count: 1567699
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 0.213188
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 45.520982
CPU 1 DPC total execution time (s): 0.019679
CPU 1 DPC count: 4400
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 0.257065
CPU 2 ISR highest execution time (µs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 82.689980
CPU 2 DPC total execution time (s): 0.030061
CPU 2 DPC count: 7757
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 0.079956
CPU 3 ISR highest execution time (µs): 0.0
CPU 3 ISR total execution time (s): 0.0
CPU 3 ISR count: 0
CPU 3 DPC highest execution time (µs): 46.500143
CPU 3 DPC total execution time (s): 0.011043
CPU 3 DPC count: 1896
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 0.280727
CPU 4 ISR highest execution time (µs): 0.0
CPU 4 ISR total execution time (s): 0.0
CPU 4 ISR count: 0
CPU 4 DPC highest execution time (µs): 43.659435
CPU 4 DPC total execution time (s): 0.027811
CPU 4 DPC count: 8710
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 0.036644
CPU 5 ISR highest execution time (µs): 0.0
CPU 5 ISR total execution time (s): 0.0
CPU 5 ISR count: 0
CPU 5 DPC highest execution time (µs): 0.0
CPU 5 DPC total execution time (s): 0.0
CPU 5 DPC count: 0
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 0.337358
CPU 6 ISR highest execution time (µs): 0.0
CPU 6 ISR total execution time (s): 0.0
CPU 6 ISR count: 0
CPU 6 DPC highest execution time (µs): 52.811019
CPU 6 DPC total execution time (s): 0.043803
CPU 6 DPC count: 12044
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 0.018489
CPU 7 ISR highest execution time (µs): 0.0
CPU 7 ISR total execution time (s): 0.0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (µs): 0.0
CPU 7 DPC total execution time (s): 0.0
CPU 7 DPC count: 0
_________________________________________________________________________________________________________

 

[wazza300]

could test with pulling out half your memory and test with just 8gb?

can be down to drivers also,chipset,rapid storage,usb3

i dont get any issues with mine but im on different board