-RaptoR- Posted January 17, 2011 Share Posted January 17, 2011 Hello all, I was wondering if you could be of assistance... I have an odd issue with either my motherboard, CPU or RAM and I do not know which. lets start from the beginning. Every night I turn my PC off. Every morning I wake up and power on my PC only to find 1/3 of my RAM has vanished. I boot with 4GB installed instead of 6GB. I then shut down and start back up and ill have 6GB again. (note that a restart does NOT bring back 6GB, I have to power off) Either one channel or one stick of RAM vanishes every morning without explanation. I am unsure as to when the problems started as I did not notice them to start with. The odd thing is, this ONLY occurs after the PC has been off for a few hours - which makes it insanely hard to troubleshoot... I get like 1 attempt to fix the problem per day. I can shutdown for 30 mins and start back up right now and ill have 6GB... Now i've read the sticky which goes in to tweaks I should make... Is anyone able to actually able to give me an idea of what is safe to tweak these settings to? Such as "IOH, IOH/ICH PCI-E, ICH voltages as well as DRAM DATA/CTRL REF voltage tweaks for each memory Channel A/B/C" Here's a pic of memtest just so we're clear on what's going on... Memtest goes on to pass btw... http://i56.tinypic.com/8yzwic.jpg At current my BIOS looks like this: Target CPU Frequency 3803MHz Target DRAM Frequency 1603MHz LN2 Mode: Disabled*** QPI Loadline Calibration: Enabled*** Sync Mode [Enabled] AI Overclock Tuner [Manual] OC From CPU level Up [Auto] CPU Ratio Setting [19.0] CPU Turbo Power Limit [Disabled] >CPU Configuration---------------------------- CPU Ratio Setting [19.0] C1E Support [Disabled] Hardware Prefetcher [Enabled] Adjacent Cache Line Prefetcher [Enabled] MPS and ACPI MADT ordering [Modern] Intel® Virtualization Tech [Enabled] CPU TM Function [Disabled] Execute Disable Bit [Disabled] Intel® HT Technology [Enabled] Active Processor Cores [All] A20M [Disabled] Intel® SpeedStep™ Tech [Disabled] Intel® C-STATE Tech [Disabled] ---------------------------------------------- BCLK Frequency [200] PCIE Frequency [105] DRAM Frequency [1603] UCLK Frequency [3608] QPI Link Data Rate [7216] Memory Configuration Protect [Enabled] >DRAM Timing Control-------------------------- CAS# Latency 8 [8] RAS# to CAS# Delay 8 [8] RAS# PRE Time 8 [8] RAS# ACT Time 24 [24] RAS# to RAS# Delay ? [Auto] REF Cycle Time ? [Auto] WRITE Recovery Time 10 [Auto] READ to PRE Time ? [Auto] FOUR ACT WIN Time 24 [24] Back-To-BackCAS# Delay 0 [Auto] Timing Mode 2N [2N] Round Trip Latency on CHA 59 [59] Round Trip Latency on CHB 59 [59] Round Trip Latency on CHC 59 [59] WRITE To READ Delay(DD) ? [Auto] WRITE To READ Delay(DR) ? [Auto] WRITE To READ Delay(SR) ? [Auto] READ To WRITE Delay(DD) ? [Auto] READ To WRITE Delay(DR) ? [Auto] READ To WRITE Delay(SR) ? [Auto] READ To READ Delay(DD) ? [Auto] READ To READ Delay(DR) ? [Auto] READ To READ Delay(SR) ? [Auto] WRITE To WRITE Delay(DD) ? [Auto] WRITE To WRITE Delay(DR) ? [Auto] WRITE To WRITE Delay(SR) ? [Auto] ---------------------------------------------- CPU Differential Amplitude [800mv] CPU Clock Skew [Auto] IOH Clock Skew [Auto] ------------ Extreme Engine Digi+ ------------ Digi+ PWR Mode [X-Power] PWR Volt. Control [Auto] Load-Line Calibration [Full] CPU Voltege OCP [Enabled] CPU PWM Frequency [1000KHz] Extreme OV [Disabled]* Extreme OC [Auto] CPU Voltage 1.200 [1.20000] CPU PLL Voltage 1.802 [1.80200] QPI/DRAM Core Voltage 1.325 [1.32500] DRAM Bus Voltage 1.670 [1.67000] >DRAM REF Voltages---------------------------- DRAM DATA REF Voltage on CHA [Auto] DRAM CTRL REF Voltage on CHA [Auto] DRAM DATA REF Voltage on CHB [Auto] DRAM CTRL REF Voltage on CHB [Auto] DRAM DATA REF Voltage on CHC [Auto] DRAM CTRL REF Voltage on CHC [Auto] ---------------------------------------------- IOH Voltage 1.15X [1.15XX] IOH PCIE Voltage 1.536 [1.536X] ICH Voltage 1.111 [Auto] ICH PCIE Voltage [Auto]* QPI Voltage OCP [Enabled]* IOH Voltage OCP [Enabled]* DRAM Voltage OCP [Enabled]* QPI PWM Frequency [Auto]* IOH PWM Frequency [Auto]* DRAM PWM Frequency [Auto] ---------- Spread Spectrum Control ----------- CPU Spread Spectrum [Disabled] DRAM Spread Spectrum [Disabled] Link to comment Share on other sites More sharing options...
Cecco Posted January 19, 2011 Share Posted January 19, 2011 Hi, I have the exact same problem. Have you noticed if its always the same stick thats not detected? Another thing, when I cold boot and it shows 4GB in bios and windows, cpu-z shows 6GB, but in SPD it shows slots 1,2, and 3 being full when in fact the sticks are installed in 1,3 and 5. When I shutdown and eventually bios detects all 6GB cpu-z shows slots 1, 3 and 5 being full. I've also tried 3Dmark to check my system information, and on every cold boot its the same stick thats not detected, no matter which slot i try. I requested an rma but they told me to read the sticky, it didn't help unfortunately. I'm pretty sure its a hardware fault, because my brother has the exact same system as me and he has no such problems......I can't try his memory because he lives in a different country. Its driving me nuts.:confused: Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 19, 2011 Author Share Posted January 19, 2011 Yea I don't know what the exact problem is here... Odd thing out CPU-Z you mentioned and I will need to check the 1-2-3 and 1-3-5 thing myself. Of course that will need to wait for tomorrow... 1-3-5 is the normal config of course. I'm getting really sick of this myself and am trying to get a refund from the store I purchased the RAM from... Then go for some 2000MHz G.Skill RAM. Link to comment Share on other sites More sharing options...
Wired Posted January 19, 2011 Share Posted January 19, 2011 Did you read the sticky on this topic? Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 19, 2011 Author Share Posted January 19, 2011 Did you read the sticky on this topic? incorrect cpu vtt (uncore) voltage set - what Asus terms as QPI/DRAM voltage I have tried every value from stock to 1.45V incorrect QPI/DRAM to VDIMM relationship I have tried up to 1.7V on the RAM with the above stated QDI/DRAM changes. faulty memory modules MEMTEST doesn't think so... faulty memory dimm slots They all work after a reboot. Not sure How I am supposed to test for this exactly. sort of combination of 3+4 above where memory modules like particular memory dimm slots - could come down to PCB differences for each module along with voltages for QPI/DRAM and VDIMM. I have tried moving the stick around in the slots... no result. Also don't count out needing to tweak, IOH, IOH/ICH PCI-E, ICH voltages as well as DRAM DATA/CTRL REF voltage tweaks for each memory Channel A/B/C I have tried bumping up the voltages for all of these settings without success. IOH / ICH to 1.25. PCI-es to 1.55V and channel A/B/C to +0.0500V I have also inspected the CPU socket for bent pins - looks fine. I also read that it can be caused by CPU mounting pressure caused by the heatsink so I loosened my H50 up until it was only just kissing the top of the CPU - nothing. I have also tried using a lower freq - EG 1333MHz without luck. Can you suggest any other tweaks I can make? Link to comment Share on other sites More sharing options...
d3m0n_edge Posted January 20, 2011 Share Posted January 20, 2011 I have problems when booting up too. I have to turn everything off from the socket first to boot up again, never from a shut down. Though I have noticed this when I overclock to get my Dominator GTs to run at it's specified 2000MHz when I use a QPI of 1.45v. At the moment, I've underclocked them to 1600MHz with a QPI of 1.35v and the problem is no more! Though all my memory is available and doen't go AWOL. But I'm not too sure about your memory performing disappearing acts though. Faulty motherboard? Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 20, 2011 Author Share Posted January 20, 2011 One interesting thing I have just noticed. Under normal operation, CPU-Z detects the RAM in being in slots 1,3 and 5. When the RAM is missing, CPU-Z still sees 3 sticks, but in slots 1, 2 and 3. Link to comment Share on other sites More sharing options...
Cecco Posted January 21, 2011 Share Posted January 21, 2011 One interesting thing I have just noticed. Under normal operation, CPU-Z detects the RAM in being in slots 1,3 and 5. When the RAM is missing, CPU-Z still sees 3 sticks, but in slots 1, 2 and 3. Exactly the same here....do you have 3dMark? If you have, launch it after a cold boot and load system information in 3dmark, check and see which slot shows up empty. Shut down and place the dimm which showed up as missing in a different slot, reboot and if 4gb is detected after rebooting do the same in 3dmark and see if its the same stick that shows up missing again......if all 6GB show up after rebbot you'll have to wait for another cold boot to check it out. Anyways, it sounds like you have the exact same problem as me. My rma request has been accepted but I've asked for an advanced rma, I'm waiting for a reply now. Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 21, 2011 Author Share Posted January 21, 2011 I will be exchanging my RAM for another kit with the store I purchased it on come Monday. Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 24, 2011 Author Share Posted January 24, 2011 Got my new kit yesterday. Cold boot today had no issues - 6GB RAM detected. Link to comment Share on other sites More sharing options...
Cecco Posted January 26, 2011 Share Posted January 26, 2011 Got my new kit yesterday. Cold boot today had no issues - 6GB RAM detected. Thats great to hear, I'm glad you solved your problem. I'm waiting for my new ram to arrive. Link to comment Share on other sites More sharing options...
-RaptoR- Posted January 26, 2011 Author Share Posted January 26, 2011 Thats great to hear, I'm glad you solved your problem. I'm waiting for my new ram to arrive. Good Luck - still fine with 6GB here :) Link to comment Share on other sites More sharing options...
d3m0n_edge Posted January 26, 2011 Share Posted January 26, 2011 Hope it works rock solid for you for a very long time to come. Link to comment Share on other sites More sharing options...
Cecco Posted February 10, 2011 Share Posted February 10, 2011 My replacement ram arrived a week ago and I've had no problems since.:sunglasse 6GB detected all the time. Link to comment Share on other sites More sharing options...
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