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DDR3 1866 = 5.9 WEI??

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July 1, 2011 4:45:19 PM

Hi,

I have 8 gigs of DDR3 1866 Mhz installed, its gSkillz and its only scoring a 5.9 in widows experience. Not sure what is going wrong here but any help would be appreciated.

More about : ddr3 1866 wei

July 1, 2011 4:49:11 PM

Something else i should mention. When i check system specs through windows, it says I have 8GB of ram installed but also says right next to it (2.99 GB usable). and when i check performance monitor it says I only have a total of 3063 Mega bytes of total physical memory.
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a c 347 } Memory
July 1, 2011 5:07:33 PM

It's the BIOS turning-off a Stick (bad BIOS settings) or a bad stick itself. First place to look is at the Hardware Reserved, my bet it's high and equal+ to the size of one stick. This happens with '4GB' running on 64-bit Windows.

Resource Manager:
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a c 347 } Memory
July 1, 2011 5:10:36 PM

Also, if you're running XMP with the 9-10-9-28 or 8-9-8-24 kit try 10-10-10-30-2N and manually set the CAS Timings. See if that fixes the problem. {edit: I first posted the 2133 MHz and fixed it for 1866}

My Guess is that you running a Gigabyte MOBO.
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July 1, 2011 5:15:42 PM

under hardware reserved, it says 5129MB for hardware reserved? whats that mean??
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July 1, 2011 5:25:47 PM

im actually running a x58 sabertooth asus
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a c 347 } Memory
July 1, 2011 5:29:03 PM

I edited above, it means for NOW that 1 Stick is being turned-off in the BIOS, and it could be the incompatible CAS or a bad stick. Lets assume it's good for now...

Q - What RAM Kit? I'm assuming F3-14900CL9D-8GBXL 9-10-9-28-2N @ 1.50v
Q - What MOBO? I'm guessing Gigabyte

Try the following changes:
1. Don't use XMP especially on a GA board.
2. BIOS:

DRAM Frequency -> DDR3-1866MHz or 18.66 multiplier.
DRAM Voltage -> 1.60v
QPI/VTT/VCCIO Voltage -> 1.20v
DRAM CAS Timings /Enter and set
CAS -> 10
tRCD -> 10
tRP -> 10
tRAS -> 30
--
Command Rate (CMD) -> 2

Save & Exit = Yep!

If that corrects the problem then you can start trying the non-JEDEC standard G.SKILL's 9-10-9-28 CAS timings.
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July 1, 2011 5:33:31 PM

ok, thanks!. Ill try that right now.
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a c 347 } Memory
July 1, 2011 5:45:12 PM

heycoa said:
im actually running a x58 sabertooth asus


First, you're running a Dual Channel Kit on a Tri Channel MOBO; see below for proper placement.

ASUS:
Manual no BCLK:
Ai Overclock Tuner -> DOCP ; may fail if so then BCLK OC will be required.
DRAM O.C. Profile -> DDR3-1805MHz

XMP:
Ai Overclock Tuner -> XMP ; no guarantees
eXtreme Memory Profile -> High Frequency

Manual BCLK:
Ai Overclock Tuner -> Manual
BCLK -> 169 MHz
//CPU will be OC e.g. i7 950 is 23
//3067/169 = 18 apx ; 19 x 169 = 3.21GHz
CPU Ratio Setting -> 18
DRAM Frequency -> DDR3-1866MHz or closet value shown

DRAM Voltage -> 1.60v
DRAM QPI Voltage -> 1.30v

//CAS Timings N/A for XMP
DRAM CAS Timings /Enter and set Manual
CAS -> 10
tRCD -> 10
tRP -> 10
tRAS -> 30
--
Command Rate (CMD) -> 2

Save & Exit = Yep!

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July 1, 2011 5:47:55 PM

so I coundnt find QPI/VTT/VCCIO anywhere, but there was QPI/DRAM and i changed that to 1.60v. I have an Intel based machine by the way. I also couldnt find command rate anywhere but everything else is adjusted to what you recommended. So now hardware reserved is down to 1GB, however my total ram has not changed. Still says total 3063, installed 4096, and free is 1260mb. Thats under the windows hardware thing. CPUID still says i have 8 gigs installed.
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July 1, 2011 5:49:36 PM

Oh and youre picture of my mobo, I have the ram installed in the correct spots. Ive had this comp for a few months now and have just run into this problem last night.
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July 1, 2011 5:56:42 PM

is it DRAM Bus Voltage that i set to 1.60?

also, with those ratios set, the only options i have to set my ram at are DDR3-1694MHz and DDR3-2033MHZ. there are other settings but im assuming you want me to choose one of those two, probably the 1694MHz one.
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July 1, 2011 6:20:09 PM

nothing has changed. Hardware Reserved = 5129 MB , In Use = 949MB, Standby = 471 MB, Free = 1467MB. I ran a windows memory diagnostic tool and it returned no errors with my memory. Is it my motherboard?
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a c 347 } Memory
July 1, 2011 6:31:38 PM

Q - What CPU?
Q - What exact RAM Kit?
Q - What other BIOS 'tweaks' are there if any?

QPI/DRAM = DRAM QPI Voltage = QPI/VTT/VCCIO Voltage ; it'd be nice to have 1 name.

QPI/DRAM and i changed that to 1.60v Too High! use 1.30v

Here's your options:

Option 1 - Manual no BCLK:
Ai Overclock Tuner -> DOCP ; may fail if so then BCLK OC will be required.
DRAM O.C. Profile -> DDR3-1805MHz

DRAM Voltage -> 1.60v
QPI/DRAM Voltage -> 1.30v

DRAM CAS Timings /Enter and set Manual
CAS -> 10
tRCD -> 10
tRP -> 10
tRAS -> 30
--
Command Rate (CMD) -> 2

Option 2 - XMP:
Ai Overclock Tuner -> XMP
eXtreme Memory Profile -> High Frequency

DRAM Voltage -> 1.60v
QPI/DRAM Voltage -> 1.30v

Option 3 - Manual BCLK:
Ai Overclock Tuner -> Manual
BCLK -> 169 MHz
//CPU will be OC e.g. i7 950 is 23
//3067/169 = 18 apx ; 19 x 169 = 3.21GHz
CPU Ratio Setting -> 18
DRAM Frequency -> DDR3-1866MHz or closet value shown

DRAM Voltage -> 1.60v
QPI/DRAM Voltage -> 1.30v

DRAM CAS Timings /Enter and set Manual
CAS -> 10
tRCD -> 10
tRP -> 10
tRAS -> 30
--
Command Rate (CMD) -> 2

Option 4 - Stock
BIOS
Load Defaults

If that fails and you're still having the Hardware Reserved > 30MB not 5000+MB then Failure at Stock 1066 MHz the RAM is bad.
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July 1, 2011 6:34:11 PM

what version of windows are you running. it sounds like ur running a 32-bit copy of windows which will limit your RAM to 3.25/3.50 GB
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a c 347 } Memory
July 1, 2011 6:37:43 PM

I 'hope' the OP had the sense to get a 64-bit OS with 8GB or RAM!!??

X86 means 32-bit -> http://msdn.microsoft.com/en-us/library/aa366778(v=vs.85).aspx#physical_memory_limits_windows_7
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July 1, 2011 6:53:56 PM

yes it is 64 bit. But that is non-relevent. i have solved the problem. i left max memory on in msconfig which was taking up all my memory. thank you so much for your time and advice jaquith. you get best answer for all your help!
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July 1, 2011 6:54:13 PM

Best answer selected by heycoa.
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