Issues with F3-16000CL9T-6GBTD on ASUS P6X58D

[Zith]

Hello,

I recently put together a build that consists of the following:

I7 920
ASUS P6X58D
G.skill trident 3x2gb 2000mhz F3-16000CL9T-6GBTD

Other misc stuff


Currently, I have the CPU running at 4.1ghz (195 bclk) rock stable. The RAM runs at 1560mhz, I can't get the system to POST at 1950mhz no matter what I try (I've tried various settings from these forums). I have a QPI of 1.5v, DRAM voltage of 1.64 / 1.66v, and still no good. They are at 9-9-9-24 2T as well, still won't even POST.

With the system running at 4.1ghz and the RAM at 1560mhz, it goes through LinX testing (50 passes) without any problems, flying colors, so it has to be pretty stable.

I followed the settings at http://gskill.us/forum/showthread.php?t=1166 - different motherboard, but very similar. I put everything in there exactly the same, and it won't POST.

I decided to try out Memtest86 last night with the RAM at 1560mhz, and every time the RAM is in triple channel, the first test hangs at 7%. It does not get past there. I attached a screenshot of what it looks like / where it freezes.

When I take out two sticks and run it with a single stick, each stick gets past that point easily. I'm currently running a long test on one stick, and will do the same for the other two.

So, I have two questions:

1) What can I do to get the system to POST with a speed of 1950mhz?
2) Why does memtest fail at the same point every time?

Thanks!

[GSKILL TECH]

Do you have the latest BIOS for the motherboard?

For memtest, you may want to use hci or V4.0 since 3.5 was made before i7.

Try the following settings:

AI overclock - manual
OC from CPU level up - auto
OC from Memory level up - DDR3-2000
CPU Ratio setting - 17
CPU Turbo Power Limit - disable

CPU configuration
CPU Ratio Setting - whichever you chose above
C1E Support - disable
Hardware prefetcher - enable
Adjacent Cache line prefetcher - enable
Intel Virtualization tech - disabled
CPU TM Function - disable
Execute Disabled bit - disabled
Intel HT Technology - disable
Active Processor Cores - all
A20M - disabled
Intel C-STATE tech - disabled

BCLK frequency - 167
PCIE frequency - 100
DRAM frequency - 2000 MHz
UCLK frequency - 4000 MHz
QPI frequency - auto

Dram Timing Control
DRAM CAS# Latency - 9
DRAM RAS# to CAS# Delay - 9
DRAM RAS# PRE Time - 9
DRAM RAS# ACT Time - 24
DRAM Timing Mode - 2N
All others can be on AUTO

EPU II Phase Control - Full Phase
Load-line calibration - enable
CPU differential amplitude - auto
Extreme OV - disabled

QPI-DRAM voltage - 1.60V

IOH voltage - 1.35V
IOH PCIE voltage - 1.60V
ICH voltage- 1.20V
ICH PCIE voltage - 1.60V

DRAM Bus voltage 1.65V

CPU spread spectrum - disabled
PCIE spectrum - disabled
CPU clock skew - auto
IOH clock skew - auto

You can try these settings with one stick at a time to make sure each stick works fine at DDR3-2000.

Thank you
GSKILL SUPPORT

[Zith]

I do have the latest BIOS for the motherboard (0703) that was posted on Wednesday. Same results there that I had with the previous BIOS.

I tried very similar settings to that, but II didn't try it one stick at a time, so I'll do what you suggested when I get home from work. Thanks for the reply!

[Zith]

Well, I tried all of the settings above exactly, and I cannot get it to POST with any single stick (Tried all three, no luck with any of them) at 2009 mhz.

The only settings I can't find are these, but not sure how important they are:

OC from CPU level up - auto
OC from Memory level up - DDR3-2000
CPU Turbo Power Limit - disable

[Zith]

More info:

dropping BCLK to 150 boots fine with all three sticks (1800mhz RAM) using the above settings.

BCLK 155 and it doesn't POST anymore.

went back to my original settings (BCLK 195, 1563mhz ram) and using memtest86+ 4.0 it gets past any bad points, so that seems to be okay. Going to let this run for a while, but no luck at all past 1800mhz.

[Zith]

sorry to bump - any other ideas here? I spent a little extra on this memory to run it past 1600mhz

[GSKILL TECH]

Post up the settings you are using for 195/1563. We need to find the proper voltages for the setting.

Thank you
GSKILL SUPPORT

[Zith]

my settings are very basic right now.

BCLK 195
PCIE frequency 100
DRAM frequency 1563mhz

CPU voltage 1.35v (i started at 1.375v, been gradually going down/testing, maxing out at 74C in LinX at 1.35v perfectly stable)

PLL 1.86
QPI 1.4 (this was 1.5-1.6 when trying to get 2000mhz RAM)
DRAM core voltage 1.4 (this was 1.66 when trying to get 2000 mhz ram)

Hyperthreading is on with this config, but I've tried it both off and on.

I also have C1E, Virtualization, and thermal maangement stuff turned off. Speedstep / turbo mode are enabled.


Basically everything else is on auto, including all of the memory settings. I tried the settings above that you suggested and it would not POST on any single stick.

[GSKILL TECH]

Have you tried the XMP Profile? I'll see if we can have this tested for you so I can send you the settings we use.

Thank you
GSKILL SUPPORT

[Zith]

I have not messed with XMP at all, but I will give it a shot and see what I can come up with.

I would appreciate some extra info if you guys have one of these boards to play with - I paired a high performance motherboard with high performance RAM for a reason

[Zith]

So, I turned on XMP...

Profile #1 was BCLK 143 with a CPU multiplier of 19. 2006MHZ ram. Booted fine.

I left XMP on, changed BCLK to 195, multiplier of 21 (4.1ghz like I currently have), RAM at 1954mhz.. it boots fine.

Currently running LinX to see how stable it is, but this is good news for sure Doesn't explain why my manual settings wouldn't work, but I'll take it...