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CM2X1024-6400C4 can I increase performance?

futureblast

By futureblast
in Overclocking and Benchmarking

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stonyisalegend

stonyisalegend

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The following was achieved on an asus crosshair at standard clocks, ram was set to 1066 instead of 800 in the bios the divider should be 6 making the clock speed 1005, also i have had this clocked to 3.41ghz making (11x310) where the divider is 5 (3410 div 5 = 682 x2 = 1364 now thats pretty damn good for ddr800, though the best timings i could manage at that speed were 5-5-5-12 CR2.

picture here http://valid.x86-secret.com/show_oc.php?id=311937

 

tag never worked :|

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DerekT

DerekT

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The following was achieved on an asus crosshair at standard clocks, ram was set to 1066 instead of 800 in the bios the divider should be 6 making the clock speed 1005, also i have had this clocked to 3.41ghz making (11x310) where the divider is 5 (3410 div 5 = 682 x2 = 1364 now thats pretty damn good for ddr800, though the best timings i could manage at that speed were 5-5-5-12 CR2.

picture here http://valid.x86-secret.com/show_oc.php?id=311937

 

tag never worked :|

 

Your validation shows 860Mhz with 3-3-3-5 on an AMD system, which at any rate can not be translated to work on a Core2 system. With the onboard memory controller of the AMD there is a stability with tight timings that can not be achieved easily on a Core2 system. Even when the Core2 system is running circles around the AMD with regards to performance.

 

1000Mhz with 5-5-5-12 and 800Mhz with 4-4-4-10 on a Core 2 system is not going to show any great differential in bandwidth. Running 800Mhz with 4-4-3-8 (if he can make it) will be minimally faster than 1000Mhz with 5-5-5-12 on a Core2 system.

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stonyisalegend

stonyisalegend

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I indeed haven't a clue of how it will run on intel, but i do know cpu-z has that divider wrong as i explained, it should be 6 not 7 thus it's actually 1005 not 860 as it suggests, there appears to be a bug in cpu-z with my motherboard which never initially supported 1066 ram, it was a later bios update that allowed it, teh calculation is [cpu speed] divided by [ram divider] muliplied by 2.

 

ddr2-800 at 3000MHz with a muliplier of 15 has a divider of 8 actually making it ddr2-750

ddr2-1066 at 3000MHz with same multiplier has a divider of 6 not 7 making it ddr2-1000 not ddr2-860

 

but regardless i have 3-3-3-5 @ 1000 or even 860 as cpu-z suggests, and that surely surpasses the 800 that your talking about also i forgot to mention the voltage, which is set to auto via the bios and is sitting on 2.31v.

 

the worst that will happen is your pc wont boot, simply unplug it wait 30 seconds and plug it back in again.

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DerekT

DerekT

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@futureblast

 

Your DRAM is warranted up to and including 2.1v. At 2.31v it will show the overvoltage characteristics and you lose the warranty. It's your DRAM but you need to know that should you follow are far past the DRAM warranty. Setting to 2.1v and not Auto is the correct method.

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DerekT

DerekT

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I get higher read and writes using a 4.3.4.12 timing at stock, i dont have much exsperience o/cing, will keeping the tRCD at 3 damage the modules? as i can't find any memory heat sensor readings anywhere.

 

There are no heat sensors on DRAM. Use the touch method. Run Memtest full blast and after 15 minutes, touch the heat covers. If they are too hot to hold the fingers on for 15s or so, then you need active cooling. If you find 4-3-4-12 faster than 4-4-4-10 (which is certainly surprising), then you should have no issues as long. Whether 4-4-4-10 or 4-3-4-12 you need to be sure that the DRAM is cool enough though or longterm stability will be compromised.

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futureblast

futureblast

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4-4-4-10 timings run smothe with no errors.

 

My processor is a qx6700, I believe the FSB is 1066 the multiplier is set @10 and i just use the intel cooler, core temp is about 60-62c at idle so I dont think OCing the processor is a good idea unless I improve the cooling but could I push the memory any further to match the FSB?

 

just tried 5-4-4-10 @ 533mhz 2.2v fsb is 1:1 as seen in another posting, should this be an improvement on the 4-4-4-10 timings?

 

Sorry if the questions are dumb, i'm just dipping my feet into this overclocking stuff but I'm already feeling the pull of the Darkside...:evildevil

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DerekT

DerekT

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4-4-4-10 timings run smothe with no errors.

 

My processor is a qx6700, I believe the FSB is 1066 the multiplier is set @10 and i just use the intel cooler, core temp is about 60-62c at idle so I dont think OCing the processor is a good idea unless I improve the cooling but could I push the memory any further to match the FSB?

 

just tried 5-4-4-10 @ 533mhz 2.2v fsb is 1:1 as seen in another posting, should this be an improvement on the 4-4-4-10 timings?

 

Sorry if the questions are dumb, i'm just dipping my feet into this overclocking stuff but I'm already feeling the pull of the Darkside...:evildevil

 

I would not run anything any faster with a system that is setting idle at 60+ on the CPU. This is NOT a good temperature even with a stock cooler. Is your QX6700 a B3 revision.

 

Download CPU-z from Here and post screen shots of your CPU Tab.

Download Core Temp Here and post a screen shot.

 

You can use Photobucket Here to upload the graphics.

 

Use SuperPi Here to test your DRAM speed.

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futureblast

futureblast

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will do,

I can confirm it is a B3, when i got it i called intel cause it was so hot and was told it was safe up to 90c when it would start to throttle.

 

I've put arctic silver 5 on it which took idle down a few degrees, however as I run it in a htpc case with an o/c 8800gtx + sound card + duel tuner and 3 Hds i have to run it with the case off.

will post stats after auction finishes that I'm watching.

 

 

-Robb

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DerekT

DerekT

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can you help me out DerekT,

 

I've grabed the screenshots and put them in Word but cant get them out of the document to upload, I know its dumb but when I alt+printscreen what do i do next???

 

Start --> All Programs --> Accessories --> Paint

 

Click on the Paint Icon and choose --> Edit --> Paste. Then use the Paint program to cut the portion out that you want to post. After cutting the portion, choose --> File --> New and then --> Edit --> Paste. Save as a JPG file and post it on a graphics upload site. If you do not have one, use http://www.photobucket.com

 

With your information above ie. system, case, oc gpu, etc. I would not raise the DRAM any higher personally. Be careful, you are very hot already.

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DerekT

DerekT

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Are the B3 steppers a bad batch?

 

They are not bad. They run hotter than the G0. Even so, you are far higher than you should be. Your VID is one of the higher ones and if that's idle, then you are throttling when you do things like play movies, etc. Q6600 B3's usually idle with ~40c and a good cooler such as a Thermaltake Ultra 120 Extreme. I would not advise anyone with your temperatures to do anything but some extreme methods of cooling that furnace of yours.

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DerekT

DerekT

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is it possible to lower the VID?

 

There is no such thing as a static single default value for core voltages on the modern processors. They run on a Multiple VID (Voltage IDentification) platform.

 

All modern Intel and AMD Processors carry a technological enhancement called "Multiple VID". Multiple VID (Voltage IDentification)is a Code Set Instruction for raising and lowering Processor Core Voltages [utilizing a 6-bit digital-to-analog converter (DAC) for Intel and a 5-bit DAC for AMD] housed in the CPU. This DAC uses a VID-code provided by the CPU to program the desired CPU core voltage. Thus the regulated output voltage can be dynamically adjusted by changing the VID-code "on the fly" and giving a "boost' to the core voltage when needed or dropping it when not needed. This helps to keep the processor cooler as lower voltages usually equal lower processor operating temperatures. The Quad Core uses a highly optimized Multiple VID operation that is quite a different algorithm than the Core2 Duo processors. You can see this by using Core Temp and noting the rise and fall of the VID when you tax your system. With the Core2 Duo, the difference was not nearly as marked as the Core2 Quad.

 

http://i259.photobucket.com/albums/hh293/DerekT2008/coretemp.jpg

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futureblast

futureblast

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Thanks for all the advice derekT.

 

I have started to look at better cooling options, unfortunately most air coolers won't be effective in my htpc case as space is limited and it's full of other high end heat producers so I am looking at some water solutions.

 

I'm gonna upgrade in about 6 months to one of the new extreme processors that run cooler, for now though, do you think I would benefit from upgrading my ram to something a bit faster to match the FSB or would the performance gain not really be noticeable?

 

Cheers mate -Robb

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