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      • 30. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
        Frojo

        Mainboard: Asus P8Z77-V PRO

        Specified 1600 clock on the memory (really 800 x 2)

        Memory timing: 10-10-10-27

        ... still running solid.

        • 31. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
          robertjal

          Hi Frojo,

           

          did you use XMP or did you set it manually ? if manual what where the other parameters (tRFC,tWR, etc) you used ?

           

          did you increase the voltage ?

           

          thanks,

          Robert.

          • 32. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
            Frojo

            I specified the frequency and then let the BIOS work everything else out. After it booted I verified with CPU-X.

            • 33. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
              robertjal

              ok thanks.

               

              i fiddled around with it some more but I'm beginning to believe there is a bug in the firmware of my board. i can take the spd settings, crank up the bus speed to 105Mhz and everything works without effort. The ram is thus running at 1400MHz but one dimm per channel @ 1600 does not work at all, one dimm single channel works sometimes. not even relaxed settings make it run @1600.

               

              I'll file a separate BZ for this, if they work on your system that easily it should not be impossible for me to get it working on mine.

              • 34. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                rinax89

                I got me an i7 3770 and after installing the latest driver, either randomly or watching a video my whole system just shuts down without a BSOD and then restarts by itself. Upon unisntalling the Intel HD4000 driver, no such crashes ever occurred again. The same videos do not cause any shut downs, but it isn't playing smoothly since I jaut have the standard VGA driver installed instead of the Intel HD4000.

                 

                Hope the next driver update will come out soon and have a remedy to this and all other issues.

                • 35. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                  robertjal

                  Frojo,

                   

                  can you do me a favor ? can you run cup-z and post the Memory SPD part of your report ? i would like to compare it to mine. in my report the max bandwidth is reported as 1333 which is not what it should be.

                  thanks,

                  Robert.

                   

                  this is what i have:

                   

                  DIMM #                1

                      SMBus address        0x50

                      Memory type        DDR3

                      Module format        UDIMM

                      Manufacturer (ID)    Corsair (7F7F9E0000000000)

                      Size            8192 MBytes

                      Max bandwidth        PC3-10700 (667 MHz)

                      Part number        CMP32GX3M4X1600C10

                      Number of banks        8

                      Nominal Voltage        1.50 Volts

                      EPP            no

                      XMP            yes

                      XMP revision        1.3

                  JEDEC timings table        CL-tRCD-tRP-tRAS-tRC @ frequency

                      JEDEC #1        6.0-6-6-17-22 @ 457 MHz

                      JEDEC #2        7.0-7-7-20-26 @ 533 MHz

                      JEDEC #3        9.0-9-9-25-33 @ 685 MHz

                  XMP profile            XMP-1600

                      Specification        PC3-12800

                      Voltage level        1.500 Volts

                      Min Cycle time        1.250 ns (800 MHz)

                      Min tRP            12.50 ns

                      Min tRCD        12.50 ns

                      Min tWR            15.00 ns

                      Min tRAS        33.75 ns

                      Min tRC            50.63 ns

                      Min tRFC        260.00 ns

                      Min tRTP        7.50 ns

                      Min tRRD        7.50 ns

                      Command Rate        2T

                  XMP timings table        CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)

                      XMP #1            6.0-7-7-17-25-2T @ 480 MHz (1.500 Volts)

                      XMP #2            10.0-10-10-27-41-2T @ 800 MHz (1.500 Volts)

                  • 36. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                    Frojo

                    Of course...

                     

                    DIMM #   1
                        SMBus address   0x50
                        Memory type   DDR3
                        Module format   UDIMM

                        Manufacturer (ID)    Corsair (7F7F9E0000000000)

                        Size   8192 MBytes
                        Max bandwidth   PC3-10700 (667 MHz)
                        Part number   CMZ32GX3M4X1600C10
                        Number of banks   8
                        Nominal Voltage   1.50 Volts
                        EPP   no
                        XMP   yes
                        XMP revision   1.3
                    JEDEC timings table   CL-tRCD-tRP-tRAS-tRC @ frequency
                        JEDEC #1   6.0-6-6-17-22 @ 457 MHz
                        JEDEC #2   7.0-7-7-20-26 @ 533 MHz
                        JEDEC #3   9.0-9-9-25-33 @ 685 MHz
                    XMP profile   XMP-1600
                        Specification   PC3-12800
                        Voltage level   1.500 Volts
                        Min Cycle time   1.250 ns (800 MHz)
                        Min tRP   12.50 ns
                        Min tRCD   12.50 ns
                        Min tWR   15.00 ns
                        Min tRAS   33.75 ns
                        Min tRC   50.63 ns
                        Min tRFC   260.00 ns
                        Min tRTP   7.50 ns
                        Min tRRD   7.50 ns
                        Command Rate   2T
                    XMP timings table   CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
                        XMP #1   6.0-7-7-17-25-2T @ 480 MHz (1.500 Volts)
                        XMP #2   10.0-10-10-27-41-2T @ 800 MHz (1.500 Volts)
                    • 37. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                      robertjal

                      Hi Frojo thanks !.

                       

                      your report is the same as mine.

                      This is what i do not understand: they sold these dimms as 1600MHz, which they apparently can do with overclocked parameters, but they are actually certified as 1333. i call that false marketing....

                      • 38. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                        Yups

                        It looks correct to me. This is DDR3-1600 memory. SPD is programmed with 1333 but your memory supports 1600 over XMP. Here is your RAM: http://www.corsair.com/dominator-with-dhx-pro-connector-1-5v-32gb-dual-channel-ddr3-memory-kit-cmp32gx3m4x1600c10.html

                         

                         

                        If you can't run XMP 1600 then it's more likely a Bios issue. What Mainboard do you have?

                        • 39. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                          robertjal

                          Hi Yups,

                           

                          I have the Intel DZ77BH-55K. i do not agree that this kit should be sold as 1600Mhz. it is 1600MHz capable but not guaranteed. if it was they should set that in the max bandwidth, they don't so apparently it did not pass the jedec spec for that speed. xmp is just an extension that allows the dimms to pass along overclock parameters to the bios.

                          they can mention it's 1600MHz capable but if it does not pass the official tests it is not, it is 1333MHz certified then. I have tried other dimms that report they are 1600MHz certified, cheap whitelabel stuff, nothing like the expensive corsair dimms and they just work (@1600), no issues. So the board does work properly @1600.

                           

                          thanks,

                          Robert.

                          • 40. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                            Jesse DeHerrera

                            I have an i5-3570k, and i am having the same issues. randomly i will lose all display, and it will come back on saying in the notification area: Intel graphics media accelerator drivers have stopped responding and have recovered. if i use windows 7 vanilla drivers, i have no issues. would like the driver to work! no aero and not so smooth graphics sucks, seeing as i just built my system

                            • 41. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                              Yups

                              Your RAM fully supports DDR3-1600 and therefore it can be sold as DDR3-1600. If you have issues, either your Board or Bios is flawed or your RAM is broken which is not likely.

                              • 42. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                                robertjal

                                if it does it should state that in the spd parameters and not only in the extended block.

                                 

                                however this thread is about the Igfx not the performance of the dimms used. Let's agree to disagree and leave it at that.

                                 

                                Thanks,

                                Robert.

                                • 43. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                                  Jon

                                  I noticed something else while experiencing this problem.

                                   

                                  When the screen blacks out and I reset the connection, if there was a window that was set to "full screen" (which on the Dell U2711 is 2560x1440), when it comes back up the window that was set to full screen is now smaller in size (roughly 1600x900px; the resolution of the primary Lenovo screen). The window is still "maximized" and to get it back to full resolution I have to "restore down" then "maximize" the window again.

                                   

                                  This might not be news; but I thought I'd offer this up to the Intel engineering team as they troubleshoot. Whatever is happening during that process is forcing the windows down to fit into the 1600x900 screen resolution, which in my case is the resolution of the integrated ThinkPad display (which continues working throughout the external screen blackout).

                                  • 44. Re: Intel HD 4000 Graphics (i7-3770K) occasional flicker
                                    phil_l

                                    robertjal wrote:

                                     

                                    Hi Yups,

                                     

                                    I have the Intel DZ77BH-55K. i do not agree that this kit should be sold as 1600Mhz. it is 1600MHz capable but not guaranteed. if it was they should set that in the max bandwidth, they don't so apparently it did not pass the jedec spec for that speed. xmp is just an extension that allows the dimms to pass along overclock parameters to the bios.

                                    they can mention it's 1600MHz capable but if it does not pass the official tests it is not, it is 1333MHz certified then. I have tried other dimms that report they are 1600MHz certified, cheap whitelabel stuff, nothing like the expensive corsair dimms and they just work (@1600), no issues. So the board does work properly @1600.

                                     

                                    thanks,

                                    Robert.

                                     

                                    Hi

                                     

                                    This link gives some background informationhttp://forum-en.msi.com/faq/article/ddr3-memory-standards-blurry-lines

                                     

                                    Regards

                                     

                                    Phil

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