captnastro

1 minute ago, kondilac said:

Yes i have also noticed that 8bit - 16bit problem, but as i checked the default value reads out as 0x16, so i guess it is 0x116 indeed by default, there is only the problem with reading, and maybe writing it.

 

http://www.softnology.biz/files.html

actualy, thanks to timohour, changing 0x204 to 0xFF. made it possible to boot with custom timings. therefore probably not only read/write issue 

1 hour ago, kondilac said:

 

OK, one thing is sure now, if custom timings are enabled, your system wont boot. You should try CMOS reset, 1 stick only, 0x1EF to 0x2. It should boot into windows, and there you should check with CPU-Z or AIDA that the CR2 is set to 2.

here i still see 1T, when 0x1EE is on 0xE, even if 0x1EF is on 2T.

1 hour ago, kondilac said:

After this is working properly, we should get custom timings working with 1 stick, because we know that the memory controller can run 1 stick at factory timings, first do a CMOS reset, and set the DIMM profile to custom (0x1EE to 0x1) and configure the timings to factory settings:

 

It should boot, but if not first double check if i done the conversion from DEC->HEX good, and the respecting EFI vars. Since these are the factory timings it should boot up fine, as if JEDEC profile.

tried the given numbers from you. but didn't work. extracted via AIDA after CMOS reset i got other numbers:

tCL = 11 [0x1FE -> 0xB]
tRCD= 12 [0x1FF -> 0xC]
tRP = 13 [0x200 -> 0xD]
tRAS = 34 [0x201 -> 0x22]
tRC = 47 [0x209 -> 0x2F]
tRFC = 278 [0x204 ->0x116]
tRRD = 6 [0x206 ->0x6]
tWR = 16 [0x203 ->0x10]
tWTR = 8 [0x207 ->0x8]
tRTP = 8 [0x208 ->0x8]
tFAW = 27 [0x20B ->0x1B]

tried those, but still, didn't work, won't boot up this way.

only changing 0x1EF doesn't seem to do anything, CPU-Z still shows 1T

yeah, came to the same conclusion. my timings are 11-12-13-34. Tried those of timohour, CL12-12-12-36, wasn't able to boot too...

0x1EF at 0x1
0x1EE at 0x1
0x1FE at 0xC
0x1FF at 0xC
0x200 at 0xC
0x201 at 0x24

EDIT: just saw now, that you edited your Post. give me few min.

45 minutes ago, kondilac said:

 

First, i would make sure that the BIOS is in factory state. Removing the main battery, and then the CMOS batery for a minute will revert everything to factory settings (also the SATA mode to RAID!!!)

 

And then try to boot with one stick only, and then 2. Please describe the behaviour (black screen only, or you can get into BIOS, etc.) If no success, try loosening the command rate to 2.

 

If 2133 @CR2 does not work at all, try setting  Memory Frequency, Variable: 0x1E6 to 0x4 (1867Mhz). You should be able to boot without problems, at factory timings. If this works out, and You would like to experiment, you should try setting the custom memory settings, esspecially loosening the CAS latency to 12 (I have no idea where did my post with the variables go BTW...)  For this, You have to enable custom ram setting using EFI var 0x1EE to 0x1, then tCL , Variable: 0x1FE to 0xC (=12)

 

EDIT: Maybe try setting EFI var "DDR Selection": 0x1E9 to 0x0, to set the voltage to 1.5V instead to 1.35. Maybe the stick internally regulate the VIN to 1.35 anyway, but if not then it could help. If i will have time, i will also try this, and check if i could raise the BCLK a bit. But most likely the memory controller of the CPU is the weak part of the system, and i guess only loosening the timings will help.

 

 

Thanks for your answer. tried these settings, with following results:

• CMOS Reset, booting with 1 Stick @ 2133 possible. boot with 2 Sticks is not possible. Pressing PowerButton starts the System, ScreenOff, after few seconds shutdown
• setting EFI var  0x1EF to 0x2 /  EFI var 0x1EE to 0x1 no boot at all, doesn't matter if 1 or 2 Sticks, ScreenOff, after few seconds shutdown
• CMOS Reset, 0x1e6 at 0x04 (1867) boot with both sticks possible. setting 0x1EE to 0x1 makes the system unbootable again.  ScreenOff, after few seconds shutdown
• CMOS Reset, 0x1e6 at 0x04 (1867) boot with both sticks possible. setting 0x1EE to 0x1 and 0x1FE to 0xC makes the system unbootable again.  ScreenOff, after few seconds shutdown
• CMOS Reset, 0x1EF at 0x02,  0x1EE at 0x1,  0x1E9 at 0x0, still not able to boot.  ScreenOff, after few seconds shutdown

2 hours ago, timohour said:

You change this to 0x2.

This way you set CR (Command Rate) to 2. Try that and report if it works.

 

maybe you will have to tweak other settings too.

 

Still not able to boot :-/ . Any advise? 

UPDATE: able to boot with 1 Stick, but not with 2.

On 1/10/2016 at 10:10 PM, kondilac said:

The memory controller of this i7-3840QM can run my RAM sticks at factory timings @2133 with no problem, althrough only the slightest BCLK raise freezes the machine. No problem, i am fine @4Ghz 4C/8T

hi there! i've got also 3840QM and HX321LS11IB2K2/16 Ram Sticks, but my system doesn't boot. 

On 11/14/2015 at 6:48 PM, kondilac said:

UPDATE2: I was also able to boot into windows @2133 CL11-12-13(factory) , when manually setting EFI var 0x1EF (Nmode) to 2N instead of auto. Using 2N mode improves stability, but 1N offers the maximum performance. Memory bandwith R/W/C was around 28k/30k/28k Mb/s. Before running a GFX bench to check for iGPU instability, i've restarted the system. Tried to restart, to be exact, because this functionality is lost, but there are some other settings available in the bios at the memory section, so maybe this could work out better than loosening the timings. I will continue to experiment tomorrow, until then i've reverted back to 1866, which is stable with the factory (tight) timings.

is this still up to date? or did you change something else? to which Value should i change the 0x1EF?