Asus X58 + 6/12GB memory overclocking - detecting less memory than installed
This is a discussion on Asus X58 + 6/12GB memory overclocking - detecting less memory than installed within the Asus Intel motherboards / CPU forums, part of the Intel motherboards / CPU category; By eva2000 All x58 boards need 3x modules in dimm slots 2+4+6 on your board see manual - might solve ...
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|16-03-2010, 04:30 AM||#57 (permalink)|
Join Date: Mar 15 2010
By eva2000No, I mean I have been trying 2, 4, 6 but I tried 1, 2, 3 just to see if anything will work and it detects 4GB.
Not sure if this confirms it is BIOS settings or anything.
|16-03-2010, 04:38 AM||#58 (permalink)|
oh in that case stick with 2+4+6 as it's only way to get 3x module triple channel configs to detect (by intel design spec).
I'd just keep vdimm at 1.6v or 1.66v to start as your memory is rated at 1333mhz but you're pushing >1500+ mhz and start bumping QPI/DRAM (cpu vtt) from 1.2v to 1.3v, then try up to 1.475v and see if it makes a difference. Could be your memory regardless of volts won't hit DDR3-1500+ so falling out of full detection or your memory doesn't like high DRAM volts so might need <1.6v
Other way to do it is drop back to 1333mhz speeds and keep raising memory frequency in increments, and see how far you can get at 1.3v QPI/DRAM and 1.6v DRAM volts detecting 6GB. Then once it falls out of 6GB, bump voltages until you see it redetect 6GB.
|16-03-2010, 05:58 AM||#59 (permalink)|
Join Date: Mar 15 2010
By eva2000But I can't get it to detect 6GB ever, CPU speed is at normal 2.66ghz now with RAM at 1333mhz but still only 2GB. Tried QPI and DRAM at Auto and tried QPI at 1.3v and DRAM at 1.6v but still only 2gb RAM (in BIOS and Windows 7 64bit).
However CPUZ detects 6GB.
|25-03-2010, 12:10 AM||#60 (permalink)|
Join Date: Mar 24 2010
Need some advice please on memory recognition on Rampage II Extreme. When cold booting I'll sometimes only get 4GB of my 6GB showing up. I can reboot all day after that and the full 6GB will show up everytime. I'm actually hopeing that this is only a setting issue and not something more sinister like the 6GB connection only being made once the memory controller gets warmed up?
My system is setup as follows with i7 930 @ 3.8GHz
Memory is OCZ Platinum 1866MHZ (OCZ3P1866C9LV6GK) running at stock timings 220.127.116.11 and 1N @ 1804MHz.
Memtest has been run and all memory checks out ok. Super Pi run on 32M and passed.
Ai Overclock = Manual
BCLK = 178
ULCK = Auto
QPI Link Data Rate = Auto
EPU II Phase Control = Normal
LLC - Disabled
CPU Differential Amplitude = Auto
CPU = 1.34v (HT On)
CPU PLL = 1.81v
QPI/DRAM = 1.350v
IOH = 1.126v
IOH PCIE: Auto
ICH = 1.11v
ICH PCIE = Auto
DRAM BUS = 1.63v
Thanks for any help
Last edited by orbiter; 25-03-2010 at 12:31 AM.
|25-03-2010, 12:57 AM||#61 (permalink)|
By webby111might need rma the memory then
By orbiterHey orbiter try all the suggestions in first post's linked list of threads which have suggested tests and settings to try, definitely you need to set some of the voltages and bios settings manually rather than let them float with AUTO.
|29-03-2010, 11:30 AM||#62 (permalink)|
Join Date: Nov 08 2009
EUREKA, my Ci7-950 processor and ASUS P6T finally sees 6GB at 1600Mhz with all setting XMP auto.
My RAM had been stable ONLY at 1333MHz. I have tried three brands of 6GB 1600MHz tri-channel RAM kits, two ASUS P6T motherboards (I had a bad southbridge that was eating up hard disks on the firtst one) and every trick posted on this and other sites.
Today, I pulled the CPU again to verify the pins were all straight, cleaned it and wrote down the CPU information to RMA the CPU. I had read here that the heatsink must be installed from the board. I noticed the builder had not installed the mylar O washers on the top side of the motherboard under the heat sink's feet. I installed them.
When I rebooted, the BIOS noted a new processor had been detected and made me press F1 to enter the BIOS, I set the RAM speed to 1600 on a whim and, you guessed it, the BIOS now sees the RAM as it should.
I have rebooted 10 times. So far, no hiccups. F'in' Magic.
|29-03-2010, 10:31 PM||#63 (permalink)|
Join Date: Mar 24 2010
Hope yours continues to work ok 1bigguy. The problem for me though is a cold boot. I can boot all day long and BIOS will show 6GB, however from a cold boot e.g if the systems is left off overnight, it's back to 4GB again next morning, untill I power off and on again then 6GB will return.
|29-03-2010, 11:01 PM||#64 (permalink)|
Another case of board short causing mis-detection of memory size installed! Interesting indeed.
Oribiter maybe dimm slot or mem module is nearly on it's way out to hardware heaven ?
|12gb, 12gb a-data 2000x, 12gb ddr3, 6gb, asus p6t6, asus p6t6 ws revolution, asus x58, memory overclocking, qpi/dram, vdimm|
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