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Memory not running at specified speed on Rampage III Extreme

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November 24, 2010 3:50:48 PM

I currently have the Corsair Dominator CMP12GX3M3A1600C9 (3x4GB @ 1600 MHz) installed on a ASUS Rampage III Extreme with an Intel i7 980X EE.

The problem comes with me not being able to run the memory at the specified 1600 MHZ. I activate the XMP feature on the BIOS and I get an "Overclocking Failed!" message. I try overclocking manually. I got my system to almost 4GHz and the memory to 1593 MHz and it seems to be stable, although I might be using more V than needed in some settings...not sure.

Anyways, as soon as I try to hit the 1600 MHz mark, it will fail and give me the "Overclocking Failed!" message. I can get to almost 1600 MHz without an issue, BUT if I hit the 1600 MHz mark or just a tad over it...BUM...Overclocking Failed! Which I find VERY weird. Why can I get to ALMOST 1600 MHz, but not to or above it?

I started an RMA process for my Memory with NEWEGG since that was the recommendation from ASUS. ASUS also said that if this new memory doesn't work with the XMP feature, then I probably have a bad CPU and need to RMA it. They never suggested that the MOBO might be the problem, but hey, they are the manufacturers of the MOBO so I don't think they will suggest that first.

Any help and suggestions as to how can I get my memory to run @ its specified 1600 MHz will be greatly appreciated.

Also, I'm considering these memory kits to substitute my current one:
Corsair CMT8GX3M2A2000C9 (Just get the 8GB kit and then add to it in the future since NEWEGG ran out of the 12GB kit)
G.Skill F3-16000CL9T-12GBRM

Any suggestions as to what memory to choose will also be greatly appreciated.

Thank you!
November 24, 2010 4:19:57 PM

UPDATE: I went ahead and ordered the G.Skill kit. Will give them a try as Corsair is kind of overpriced.
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November 24, 2010 6:08:03 PM

Coamex said:
I currently have the Corsair Dominator CMP12GX3M3A1600C9 (3x4GB @ 1600 MHz) installed on a ASUS Rampage III Extreme with an Intel i7 980X EE.

The problem comes with me not being able to run the memory at the specified 1600 MHZ. I activate the XMP feature on the BIOS and I get an "Overclocking Failed!" message. I try overclocking manually. I got my system to almost 4GHz and the memory to 1593 MHz and it seems to be stable, although I might be using more V than needed in some settings...not sure.

Anyways, as soon as I try to hit the 1600 MHz mark, it will fail and give me the "Overclocking Failed!" message. I can get to almost 1600 MHz without an issue, BUT if I hit the 1600 MHz mark or just a tad over it...BUM...Overclocking Failed! Which I find VERY weird. Why can I get to ALMOST 1600 MHz, but not to or above it?

I started an RMA process for my Memory with NEWEGG since that was the recommendation from ASUS. ASUS also said that if this new memory doesn't work with the XMP feature, then I probably have a bad CPU and need to RMA it. They never suggested that the MOBO might be the problem, but hey, they are the manufacturers of the MOBO so I don't think they will suggest that first.

Any help and suggestions as to how can I get my memory to run @ its specified 1600 MHz will be greatly appreciated.

Also, I'm considering these memory kits to substitute my current one:
Corsair CMT8GX3M2A2000C9 (Just get the 8GB kit and then add to it in the future since NEWEGG ran out of the 12GB kit)
G.Skill F3-16000CL9T-12GBRM

Any suggestions as to what memory to choose will also be greatly appreciated.

Thank you!


IMO its REALLY not worth it to RMA, if the timings are tight and cas 9 is not bad then i'd say live with it.
I personally have had some trouble in the past overclocking larger sticks of ram (4gb stick instead of 2) but the performance difference will be non existent, you might not even see a difference in benchmarks. I'd be happy you got to 4ghz and your ram is stable. Have you run stress tests to rule out any additional issues with the ram?


Edit: also check the dram voltage, it should be 1.65, but it should be fine at 1.66.
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Related resources
a c 347 } Memory
a b K Overclocking
November 24, 2010 6:51:28 PM

ref:
ASUS Rampage III Extreme - http://usa.asus.com/product.aspx?P_ID=jy0uafxYBCrJwksC
Corsair Tested - http://www.corsair.com/configurator/product_results.asp...
RAM CMP12GX3M3A1600C9 ; 1600 MHz 9-9-9-24-2T ; DDR3-1600 (Dominator-12800C9*XMP*3CH)

BIOS:
1. Load Defaults
2. AI Overclock Tuner -> X.M.P.
3. DRAM Frequency -> DDR3-1600 Mhz
4. Save & Exit =Yes

Test

BIOS
CAS# Latency -> 9
RAS# to CAS# Delay -> 9
RAS# PRE Time -> 9
RAS# ACT Time -> 24

Timing Mode -> 2N

I had some work I needed to finish.
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November 24, 2010 7:26:40 PM

Thanks, I did that exactly, Jaquith, and as always the result was Overclocking Failed! :-S
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a c 347 } Memory
a b K Overclocking
November 24, 2010 7:57:04 PM

{Set 2}
BIOS:
1. Load Defaults
2. AI Overclock Tuner -> X.M.P.
3. DRAM Frequency -> DDR3-1600 Mhz

timings:
CAS# Latency -> 9
RAS# to CAS# Delay -> 9
RAS# PRE Time -> 9
RAS# ACT Time -> 24

Timing Mode -> 2N

QPI/DRAM Core Voltage -> 1.40V
DRAM Bus Voltage -> 1.65+V

Save & Exit =Yes

///FAILURE///

{Set 3}
BIOS:
1. Load Defaults
2. AI Overclock Tuner -> Manual
3. DRAM Frequency -> DDR3-1600 Mhz

-- over kill -- /
4. Performance/Watt select -> Power Enhanced
5. Intel(R) C-STATE Tech -> Enabled
6. C State package limit setting -> Auto
7. C1 Auto Demotion -> Enabled
8. C3 Auto Demotion -> Enabled
/

timings:
CAS# Latency -> 9
RAS# to CAS# Delay -> 9
RAS# PRE Time -> 9
RAS# ACT Time -> 24

Timing Mode -> 2N

QPI/DRAM Core Voltage -> 1.40V
DRAM Bus Voltage -> 1.65+V

Save & Exit =Yes

Keep in mind if I were there, all these posts combined would be a 5-20 minute process.
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a b } Memory
a c 145 K Overclocking
November 24, 2010 8:08:32 PM

What happens when you follow standard overclocking set up steps and start off by running Memtest w/ memory at 1600 and CPU multiplier = 12 ?
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a c 347 } Memory
a b K Overclocking
November 24, 2010 8:14:24 PM

R-E-A-L-L-Y S-L-O-W CPU, otherwise I assume you meant Memory Multiplier = 12 {133.33 X 12 = 1600} -- and that's a Gigabyte BIOS setting.
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November 24, 2010 10:28:10 PM

jaquith said:
{Set 2}
BIOS:
1. Load Defaults
2. AI Overclock Tuner -> X.M.P.
3. DRAM Frequency -> DDR3-1600 Mhz

timings:
CAS# Latency -> 9
RAS# to CAS# Delay -> 9
RAS# PRE Time -> 9
RAS# ACT Time -> 24

Timing Mode -> 2N

QPI/DRAM Core Voltage -> 1.40V
DRAM Bus Voltage -> 1.65+V

Save & Exit =Yes

///FAILURE///

{Set 3}
BIOS:
1. Load Defaults
2. AI Overclock Tuner -> Manual
3. DRAM Frequency -> DDR3-1600 Mhz

-- over kill -- /
4. Performance/Watt select -> Power Enhanced
5. Intel(R) C-STATE Tech -> Enabled
6. C State package limit setting -> Auto
7. C1 Auto Demotion -> Enabled
8. C3 Auto Demotion -> Enabled
/

timings:
CAS# Latency -> 9
RAS# to CAS# Delay -> 9
RAS# PRE Time -> 9
RAS# ACT Time -> 24

Timing Mode -> 2N

QPI/DRAM Core Voltage -> 1.40V
DRAM Bus Voltage -> 1.65+V

Save & Exit =Yes

Keep in mind if I were there, all these posts combined would be a 5-20 minute process.


Did both exactly as you prescribed, Overclocking Failed! was the result. So what needs to be RMAd here in addition to the Memory which I already will RMA?

Thank you again.
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a c 347 } Memory
a b K Overclocking
November 24, 2010 10:35:28 PM

I only wish it were that simple, you said "UPDATE: I went ahead and ordered the G.Skill kit." When they come in if the problem is still there, then my first assumption is the CPU.
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November 24, 2010 11:03:08 PM

jaquith said:
I only wish it were that simple, you said "UPDATE: I went ahead and ordered the G.Skill kit." When they come in if the problem is still there, then my first assumption is the CPU.


Roger. I will post the result with the new memory next week. Thank you very much again.
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Best solution

a c 347 } Memory
a b K Overclocking
November 25, 2010 12:38:53 PM

Statistical Anomaly (3 R3E + i7 980X)

There's coincidence and there's production issues. Clearly, the observation is the MOBO + CPU, but since I'm not seeing a whole lot of i7 980X causing problems -> my assumption on the root cause is 80% MOBO and 20% CPU. I thought you all would be interested in seeing the links. Keep in mind I 'NEVER' have this much trouble helping people OC RAM - it's simple. But I find myself suggesting 'FRINGE' BIOS settings that are typically meant for a rare instances with 6 sticks of RAM with 'average' underpowered MOBOs.

I cannot rule-out either CPU or MOBO.

Links:
http://www.tomshardware.com/forum/282924-30-unlock-asus...

http://www.tomshardware.com/forum/283205-30-memory-runn...

http://www.tomshardware.com/forum/283218-30-higher-volt...
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November 30, 2010 11:13:32 PM

Jaquith! Good news! G.Skill memory arrived today (F3-16000CL9T-12GBRM, 3x4GB @ 2000 MHz), I just installed it, activated XMP...VOILA! System booted perfectly, no issues at all! Memory running @ 2006 MHz with the CPU at a slight OC of 3.45 due to the XMP. So this obviously means that the Corsair Memory was the issue, right? I can't be happier! Just waiting for a sound card and I should be good to go by tomorrow! Any suggestions or comments, please let me know! Thank you again!
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a c 347 } Memory
a b K Overclocking
November 30, 2010 11:23:09 PM

Must have been the RAM; it's rare to see bad Corsair's but I've seen their 2000 MHz throw some issues w/o an OC CPU, but this is the first 1600 MHz 3X4GB with problems I've see. Anytime I have to post what 'I' deem to be fringe RAM BIOS settings nothing good can come of it.

At least it ruled-out both the MOBO & CPU. Let me know if something changes...

Good Luck!
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December 10, 2010 10:58:24 PM

Best answer selected by Coamex.
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