errors?

I have an ASUS P6X58D Premium with TR3X6G1600C8D (6GB). It will OC my i7 930 at 4.00 Ghz with VCore 1.34 stable for hours on end using Prime95. The memory runs at 1527Mhz with timings 8-8-8-24 CR1 DRAM:FSB Ratio 4:1. I don't seem to be able to reach any other OC past 4.0Ghz stable with these memory modules and the system crashes within the first 15 mins of Prime95. I have tried everything but I cannot seem to be able to go past 4.0 Ghz stable (to stand Prime95 testing for more than 15 mins). Has anyone been able to get to higher OC's using this configuration? My PSU is a Corsair HX850W and my Video Card is a Radeon HD5770 Vapor-X. Cooling: Corsair H50, and my temperature readings @ 4.0Ghz and VCore 1.34v are 36 degree C idle and 75 degrees C load (running Prime95 for several hours).

 

My figures in Turbo V:

BCLK Frequency: 191Mhz (x Multipler 21 = 4.00 Ghz)

CPU Voltage: 1.35v

DRAM Bus Voltage: 1.66v

QPI/DRAM Core Voltage: 1.25v

CPU PLL: 1.80v

ICH PCIE: 1.5v

IOH PCIE: 1.50v

ICH: 1.1v

IOH: 1.1v

Most of the time I get BSOD's of different types. Sometimes it's 0x0A IRQL_NOT_LESS_THAN_OR_EQUAL. At times the system won't go past BIOS (when I try running the memory at 1600Mhz for any OC beyond 4.0Ghz). I have tried loosening the timings to 9-9-9-24, lowering memory frequency to as low as 1200Mhz but I cannot get the system to run stable for more than a few minutes of Prime95 before crashing.

 

I would like to get to an OC level that would allow my memory to run at full 1600Mhz with timings 8-8-8-24 and a Vcore lower than 1.35v. So I tried lowering the multiplier to 20 and increasing BCLK Frequency to 200 to get to 4.0Ghz which is what I presently have been running stable at VCore 1.35v (191 x 21). I lowered VCore to 1.325v. After only about 5 mins of Prime95 I got a BSOD saying "A Clock interrupt was not received on a secondary processor within the allocated time interval". It seems I won't be able to OC my system running my memory at advertised frequency and timings at VCore levels lower than 1.35v.

 

I am going to try getting to 4,2Gb with the lower multiplier 210 x 20 and this same VCore 1.35V and see where I get. I will post my results tomorrow.

I have been wondering whether all of these problems may be connected to malcfunctioning memory modules. I am considering returning my Corsair modules as defective and getting a kit of Ripjaws 2000Mhz CL8. Where is "theramguy" when you need him?

Where is "theramguy" when you need him?

seeing he is in california i would guess still in bed ;)

give it 24 hours im sure you will get a response.

 

have you tested the ram 1 stick at a time with memtest to make sure it is or is not the ram?

thats pretty much the first step.

We can replace the modules for you if you would like however try loading the defaults and seeing if the ram with run at 1600MHz without the system being overclocked.

 

Well, in that case I would like to send them back to you for replacement. Yes, these 3 modules run fine at 1600Mhz with timings 8-8-8-24 at stock/default settings but that's not the problem. I didn't buy prime quality memory at top bucks to run it at stock settings. On the contrary, I want to OC them to the max until I realized that there is a limit to the erformance I can get using this memory. I understand that you are trying to help me identify the problem by elimitation but believe me, I have tried extensively and I just can't waste anymore time running tests. How do I go about getting an RMA?

while i understand your frustration, you may want to take into account your CPU has a native 1066 bus speed so by overclocking the CPU to 1600 speed you can run 1:1 which is absolutely ideal.

 

seeing that you can run the ram at advertised speeds how will an RMA help? you will likely get another set of ram that also runs at advertised speeds and beyond that im just trying to understand what you wish to acomplish here.

 

im sure im just misunderstanding your plight. what speed do you want to run the ram at? your board supports up to DDR2000 overclocked however that is a manufacturers assumption that you will install DDR2000 ram, not 1600.

i believe im just unclear of your expectations. would you mind spelling it out a bit more because im just not getting it.

 

thanks.

I believe you are right. I must have misunderstood the specs of my motherboard. I have managed to OC my ASUS P6X58T Premium at 3.8Ghz, 4.0Ghz and 4.2Ghz stable (24 hours of Prime95 Small FFTs) with my memory running at advertised frequency DDR3 1600Mhz and timings 8-8-8-24.

Anything beyond 4.4Ghz may be possible but due to temperature concerns (I am using Corsair H50 and at 4.2Ghz my CPU runs pretty hot). I am planning to change the stock Corsair & Thermaltake fans I am presently using for 2 Coolermaster Excalibur fans.

 

These are my OC results at 4.0Ghz in case it may be useful for others.

 

Thank you for your support.

 

http://www.pctunerup.com/up//results/_201004/20100401145117_Turbo V.png

 

http://www.pctunerup.com/up//results/_201004/20100401145408_Everest Cache & Memory Benchmark.png

 

http://www.pctunerup.com/up//results/_201004/20100401145448_1 CPU.png

 

http://www.pctunerup.com/up//results/_201004/20100401145522_4 Memory.png

 

http://www.pctunerup.com/up//results/_201004/20100401145652_5 SPD1.png

 

http://www.pctunerup.com/up//results/_201004/20100401145812_OCCT.png

These are my BIOS settings (0703)

 

http://www.pctunerup.com/up//results/_201004/20100401155013_BIOS Settings.png

thats fantastic results!!

i'm very glad i could help and you are very welcome.