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Memory Going Bad?

Last response: in Overclocking
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September 21, 2012 5:58:16 PM

Hi all,
My specs are listed below, I've been running my i7 920 at 3.8ghz for a year. The short version is my computer booted with an overclock error. It reset to default and I begin building back up to 3.8ghz.
My memory is rated at 1600, but when I set the memory multiplier to 4 it won't boot. I can run it at 1200 and get up to 4ghz but when I run 3dmark11, my speed is lower at 4ghz then when I had it at 3.8ghz with the higher memory speed.

-Does this mean one of the modules is going bad?

-Wouldn't it just be working or not working. . .I have 6gb and they all show on boot screen.

-Are there other settings that may prevent me from getting to 1600? Below are my OC specs as well

OC
CPU Clock Ratio (20)
CPU Host Frequency (200)
QPI 4.8
Memory- all on Auto
HT enabled
Spread Spectrum disabled
Overspeed disabled
C-state disabled


System Specs:
CPU: Intel I7 920 OC'd to 3.8Ghz
M/B: MSI X58 Pro-E Motherboard
RAM: 6 GB Patriot DDR 3 PC3-12800 1600mhz
FAN: Corsair H100 Liquid Cooler
HDD: Crucial 120 GB SSD and 2 Segate SATAII 500 gig hd
VGA: 1 GTX 680 4Gb
Sound: SB xfi
SU : Thermaltake Toughpower 700W W0106RU
Case : Cooler Master HAF 922 Full Tower Tower
DVD-RW : Lite On LH020A1l SATA Sony DRU 720A
Monitor : Del 2407WFP 24"Widescreen
OS: Win 7 64

More about : memory bad

a b } Memory
a c 138 K Overclocking
September 21, 2012 6:47:45 PM

The motherboards will run the ram at the default speed of either 1066 or 1333 and you have to set the XMP Profile to get the ram to its rated speed. The memory level up should let you raise it to the 1600 if the overclock interferes with it of the BCLK can be raised to get the ram up also.
September 21, 2012 7:04:04 PM

inzone said:
The motherboards will run the ram at the default speed of either 1066 or 1333 and you have to set the XMP Profile to get the ram to its rated speed. The memory level up should let you raise it to the 1600 if the overclock interferes with it of the BCLK can be raised to get the ram up also.


Thanks
I'm not sure what the XML profile is. Also are you suggesting I set the multiplier from 20 to 21?
Related resources
September 21, 2012 7:06:13 PM

inzone,
Just looked at your specs and with 2 GTX 680s you have a 1250 pus. If I added another GTzx 680 would I need to increase my pus? (700w)
a b } Memory
a c 138 K Overclocking
September 21, 2012 10:06:04 PM

The 700w is very close to the limit and you would have to have a top quality psu to run the i7-920 overclocked and two GTX 680's. I wouldn't feel comfortable with the 700w and want a 850w to be safe , especialy when overclocking is involved.

The XMP Pfofile is an option in the bios that alows the bios to set the ram at it's rated speed instead of the default MB speed of 1333 mhz. I didn't say anything about you changing the multiplier I said what could be done to try and get the ram to run at it's rated speed if you don't have the option for the XMP profile.
September 22, 2012 12:02:00 AM

inzone said:
The 700w is very close to the limit and you would have to have a top quality psu to run the i7-920 overclocked and two GTX 680's. I wouldn't feel comfortable with the 700w and want a 850w to be safe , especialy when overclocking is involved.

The XMP Pfofile is an option in the bios that alows the bios to set the ram at it's rated speed instead of the default MB speed of 1333 mhz. I didn't say anything about you changing the multiplier I said what could be done to try and get the ram to run at it's rated speed if you don't have the option for the XMP profile.



Yeah, I enable the XMP and it did not like that. Once I hit 1600 on the memory it says it can't start. . .very strange. Is there anything else I can try?
a b } Memory
a c 138 K Overclocking
September 22, 2012 12:25:24 AM

Raising the BCLK or FSB will raise the memory speed but it will also raise the cpu clock as well. The multiplier is not the same as the BCLK so don't get confused with that but you can try Rising the Bclk a few numbers to see what you get.
September 22, 2012 2:53:52 AM

Quote:
Try Mem test. Windows has a memory test too. Your memory should run within its rated specs no problem. My guess it that there is an issue with it or your overclock. Start with the tests and see what happens and we will go from there. One other thing, how does it run at stock clocks? Your memory should run at 1333 or 1600 at stock cpu clocks. If it doesn't change the XMP like someone said or change the memory strap.


I think I got it. Set the timing to 2n, 9 9 9 24 and its working ok. Memtest didn't show an error. Just odd that this would happen out of no where.
Hopefully it will stay this way, if not can I test the modules individually? I have three 2gb modules in 3 channel. Can I pull them and put them in one at a time to see where the breakdown is?
a b } Memory
a c 138 K Overclocking
September 22, 2012 4:07:22 AM

Yes you can always test the memory sticks one at a time and put the one stick in the first slot closest to the cpu.
!