Trying to set up a sys with 32GB RAM.
DZ77GA-70K works with only 2 (out of 4) 8 GB Corsair CMX32GX3M4A1600C11 modules of this set in DIMM 3 and 1.
With 3 or 4 modules POST stops at 21 or 41.
!! Bought these "pricy" modules because Intel references it as tested memory http://www.intel.com/support/motherboards/desktop/dz77ga-70K/sb/CS-033219.htm here. !!!
When setting the BIOS to "Automatic" it sets 1333 9-9-9 - works fine with 2 modules.
Setting BIOS to 1600 11-11-11-30 (Corsair specification) works fine only with 2 modules, too.
CPU: I7-3770K, PS is a brand new Corsair AX750 Gold Plus.
Does anyone experienced the same problem? Any solutions?
Thx for help.
There is the possibiity that one of your DIMMs is bad. I would suggest that you test the various combinations of two DIMMs and see if you can isolate a bad one. Let us know what you find...
But that's what I've been trying already.
Finally bought a new pair of RAM (CMX16GX3M2A1600C11 - 16 GB) and tried - NO WAY to get more than 1 of the modules to work (default BIOS settings). Unbelievable!
Why does Intel recommend this RAM? This MB sucks - A LOT !!
Can anyone of the INTEL tec staff answer these questions occasionally?
I have same motherboard and Corsair 16GB (4x4096MB) CL9 1600Mhz VENGEANCE LP (CML16GX3M4A1600C9). Running at XMP-1600. That ram should work so maybe your motherboard is faulty?
You have to understand that this is a Communities forum intended for user-to-user communications. While Intel moderators, who are part of Intel Customer Support, and some folks (like myself), who do this voluntarily, do monitor the forums and respond to some questions, the primary methods for communicating with Intel Customer Support are via the phone and chat services.
Regarding your issue, I have passed on a request for investigation to the folks responsible. In the mean time, I suggest that you contact Intel Customer Support and open a ticket regarding your issue...
Sorry I can't help you any further,
Thank you for your reply.
I just put all the 4 pieces of Corsair CMX32GX3M4A1600C11 into our last year's Intel MB DP67BAB3 ---- works excellent, even at XMP-1600! Ran the Windows memory check which results OK. So, I can be sure all Corsair items are working correctly.
It is pretty obvious: DZ77GA-70K (BIOS GAZ7711H.86A.0039.2012.0426.1522) has severe problems!
Does anybody got 32 GB RAM working on this MB? Please tell me the manifacturer and some specification. That would help. THX.
Thank you very much for this information.
Funny, your MB works with (similar) RAM not tested by Intel
Maybe they shouldn't recommend any RAM, so people doesn't get trapped!
No changes yet. MB only works with 2 of 4 8GB RAM, one in a blue slot, the other one in a black slot.
Intel Desktop Utility shows 0,720 V memory voltage (all values show a green sign), the BIOS is set to 1,5 V.
@spearson: Any comments by the Intel tech team? Any BIOS update coming soon?
There are more severe faults with this board:
Does anybody got 32 GB RAM working with this MB?
Please tell me the manifacturer and specification.
That would help. THX.
I have the same memory kit 4x8GB corsair as you i7-3770K but a DZ77BH-55K mainboard. I can also not get them to work at xmp-1600 on my board. Not even 2 dimms (one per channel) work. I sometimes have it working with one dimm in single channel. 4x8GB@DDR3-1333 works fine.
However i did get more speed by increasing the bus clk from 100 to 105 as a test, then the system does run and work at 1400. I placed 2x4gb whitelabel dimms in my system that are 1600mhz capable without xmp profile and the system work without issues.
I believe that there is something wrong with the mainboard bios and not the dimms. Somehow the xmp profile is not properly loaded or something like that. I tried setting the timing manually and fiddled around with that for quite a while but nothing seems to work. I can try to see if my kit works in a ddr3-1600mhz capable machine at work to test the dimms in another setup but I suspect the same results as you, i suspect it will work in that machine.
i also bought
Thx - it's really a mess - the new BIOS -0045 dated June 13 doesn't fix it as well. And even there are more issues occurring now. It looks like we will ban Intel MBs from our companies!
for comparison can you guys post your spd settings from cpu-z ?
these are mine. notice the dimms reporting 1333 as their max bandwidth. maybe the mainboard is not at fault after all. I'm also bugging corsair support about this. I bought 1600mhz dimms that should do that natively/guaranteed, not 1333 that can maybe be overclocked to 1600
memory spd report for one of my dimms, all 4 are the same:
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
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
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)
And now it gets really crazy:
Updated to the BIOS -0045 dated June 13 the system doen't boot because the boot hard drive is not indicated in the bios:
Standard view: the second SSD with the Windows MBR on it is missing.
Now the advanced view:
Let's have a look in the SATA section:
Wow! Both SSDs showing up - and even the second WD disc is showing up - what a surprise!
This means no MBR - no fun - no system start.
Let`s try again! There is a fancy feature called F10:
You won't believe it: choosing the P0-drive starts the system!
Conclusion: If we want to start this machine, we'll have to do it the fancy F10 way. This is really nice! It might be a hidden Intel feature? Slowly we understand why Ivy Bridge took some weeks more to rise and shine. It's the most crappy implementation Intel ever delivered!
Buying a MB at $230 and getting THIS with the 4th bios upgrade – well, we're running out on 4-letter-words.....
As I mentioned before: It's time to ban Intel from the vendor list.
What do YOU think?
thanks, can you do me a favor and post the memory spd part of the report ? you can save a text report on the about page of the program. please post the Memory SPD part of that report. I want to try you xmp settings on my board with my dimms in manual mode ans see what that does.
please check to see if you have eufi boot enabled. If so disable that and try again. (unless of course you have a EUFI install of you OS then this should not be done)