• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

16 GB RAM will not POST

I

InDaClub

Junior Member
Hi People,
I have an interesting issue with my memory. Here is quick review of my current hardware config:

Memory: OCZ2G80016GQ
Module size and kit size: 16GB (4x4GB) Q/C Kit, Rated at 5-5-5@1.8 V. (this is on the label 🙂
CPU: Intel Xeon x3360
Not overclocked, running on auto frequencies.
Motherboard: Asus P5Q-E
Bios: 1703 (latest)
Video card: MSI RX3650, 512MB GDDR3
Power supply: CoolerMaster RealPower 520 W
Operating System: Windows Server 2008 x64
CPU Cooling: Asus Triton 78

I cannot make my system run with that amount of memory. I know running 16 GBs places a huge overhead on the memory controller and I would need to tweak some settings, apply more voltage on the NB and RAM, etc. OK, but what exact settings I will need?

All blocks of memory run fine in pairs. They run also if I use 3 and then only one. Memtest is not showing any errors after 3-4 hours...

Any help will be greatly appreciated.
Thanks!
 
Originally posted by: Adul
try with 2 sticks of ram, if it boots, try the other two to see if it boots.
Click to expand...

Try it with 1 stick and see if it boots. Then enter the bios and adjust the memory voltage to 1.9v and then try with 2, then all 4. If it goes with 2 but not 4, you may need to try again with one and reset the ram voltage to 1.95 or 2.0v.
 
Bump ram to 1.9 like Gill said, and start NB voltage at 1.2v, and if it doesn't post then take NB to 1.24 or 1.26 and it should definitely boot at least. You may need to take it up to 1.3 or so, 16gb is a lot
 
I have set the following in BIOS - took the settings from http://forums.anandtech.com/me...id=29&threadid=2247681

AI Overclock tuner: AUTO
CPU Ratio Setting: AUTO
FSB Frequency: AUTO
PCI-E Frequency: AUTO
FSB Strap to North Bridge: AUTO
DRAM Frequency: 800
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO

1st Information:
CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 18
RAS# to RAS# Delay : 4
Row Refresh Cycle Time: 65
Write Recovery Time - No idea what to set, left to Auto
Read to Precharge Time: 4

2nd Information :
READ to WRITE Delay (S/D): 9
Write to Read Delay (S): 4
WRITE to READ Delay (D): 6
READ to READ Delay (S): 5
READ to READ Delay (D): 7
WRITE to WRITE Delay (S): 5
WRITE to WRITE Delay (D): 7

3rd Information :
WRITE to PRE Delay: 15
READ to PRE Delay: 6
PRE to PRE Delay: 2
ALL PRE to ACT Delay: 7
ALL PRE to REF Delay: 7

DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: Enabled
AI Clock Twister: Lighter
AI Transaction Booster: Manual
Common Performance Level: 12
All Pull-Ins: Disabled

CPU Voltage: AUTO
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: AUTO
FSB Termination Voltage: AUTO
DRAM Voltage: 1.90
NB Voltage: 1.30

POSTs. But Memtest86+ v1.70 crashes after 5 seconds...

When I power on the system it is first starting, then power goes down by itself after 1 sec, then up again. OS starts, but... PC restarts 🙂
 
Set everything to AUTO, add some extra ram voltage as per my post above and go from there. Get it working properly with ONE stick and continue to add ram and voltage until it's stable.
 
Hi,
Thanks for advices 🙂
It is working properly with 1 stick, 2 sticks, 3 sticks, everything set to Auto...
Inserting the 4th one makes troubles.
Up to 3 sticks are stable with any given voltage/setting.
 
Yes, the modified ket's bios, 1703 - the latest for the board.
I called Asus Support. Their only answer was "The memory is not listed on the Qualified Vendors List."
 
Originally posted by: InDaClub
Hi,
Thanks for advices 🙂
It is working properly with 1 stick, 2 sticks, 3 sticks, everything set to Auto...
Inserting the 4th one makes troubles.
Up to 3 sticks are stable with any given voltage/setting.
Click to expand...
Have you verified its not the dimm socket that's the problem? For example, if you can run in Dimm 1,2,3 no problem, but adding a 4th to Dimm 4 crashes, try running a single Dimm in socket 4. If that works, try running 3 Dimm in socket 4,3,2 and see if that works.

Also, I'd try reverting to an earlier BIOS, I believe I'm using 1406 right now. I had serious problems when I tried updating to 1703 and it took me a good 2-3 hours fixing everything. Nothing was stable, my settings weren't applying in the BIOS, my pre-saved configurations were all changed/corroupted, settings I had never changed in the past were defaulting to different settings. Was a huge mess. The biggest problem was completely resetting the BIOS to its original fail-safe, don't even remember how I managed it actually.
 
I was running 1406 BIOS one week ago. Same result.
I didn't experience the issues with 1703 you've mentioned.
The socket is not faulty - today I did set the RAM to 1.9, NB to 1.28, and was able to load Windows. But if I put the system under load - let's say Everest benchmark, or Prime95, it freezes.
I did also overclocked the CPU to make the FSB-Memorr Ration 1:1 - So FSB 400 MHz. multiplyer - 8. I did set the CPU voltage to 1.215.
If I need to offload little but the memory controlled, what settings need I to use?
Thanks 🙂
 
Set DRAM Frequency to 667. You can't start with operating parameters that obviously do not work.

Start with safe parameters that will work, then tweak.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top