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Old 28-04-2007, 10:31 PM   #1
moloko
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Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

Last night I was feeling really sick and just couldn't for the life of me settle down to sleep. So instead of wasting my time, I decided to get up and do something. Well I couldn't take the dog for a walk because... Well I don't have a dog. I couldn't take my parrot for a walk because... well he flies. So I thought, why not take my E6400 L624A774 for a late night OC sprint

Now a bit of background on this processor and the system it was used in. First the system specifications:
  • Intel Core 2 Duo E6400 L624A774
  • Asus P5B Deluxe - BIOS 0402 (will explain this in a moment)
  • TEAM Xtreem PC2-8000 5-5-5-15 2GB kit
  • Leadtek 7800GT
  • Hiper Type-R 580w
  • Samsung 80GB SATAII
  • Pioneer 111D

Cooling:
  • CPU: Noctua NH-U9 + Noctua NF-S12-1200
  • Memory: Noctua NF-S12-1200
  • MOSFET (heatpiped to chipset): Noctua NF-S12-1200
  • GPU: Stock

Additional background information:

These parts are apart of my "Sufferance" project (more can be read here), however with my recent testing I've been focusing on the E6700/Commando/Crucial/8800GTX combination of what I refer to as Sufferance v1. I have had a total amount of about 5 hours (this is calculated after last night's late night OC sprint) on what I refer to as Sufferance v2 - the hardware listed above (E6400/P5B Deluxe/TX/7800GT).

Additionally, due to the time being spent on it mainly being in setting up, formatting and doing basic DOA checks when the gear arrived, I haven't had much time on this system. Additionally for some time I only had the one keyboard for my two test systems and with so much work being done on Sufferance v1, then Sufferance v2 was left to watch until I'd acquired the second keyboard. Due to this reason, the P5B Deluxe is still running the shipped BIOS, so there are still a few quirks in there

So it was more or less my first time sitting down with this system. I was going for broke and just having a quick sprint. Stability wasn't a goal, I was searching for the highest possible clock speed in the shortests period of time. So between midnight and 2.30am (had work starting at 9am today, my god did that 8.5hr shift hurt ), I benched my little heart out. Starting at defaults and as I said, going for broke. Not much time passed and I was at 3.0GHz (375x8 1:1) with 1.30v vcore. From here I continued onto my merry way to 3.4GHz (425x8 1:1) with 1.350v vcore.

By this point it was getting late. As much as I was going for broke, I was still being fairly conservative. So i let the volts fly and cranked NB vcore, FSB term, SB vcore to max, set vdimm to 2.25v and set cpu vcore to 1.6v and wanted to see how far I could go with this. The challange was to boot into windows, snag myself a CPU-Z screenshot and validation and then reboot and keep going. Also keeping in mind it was quite late now and although I had become tired and also was thinking about work today, I was thrilled to see where this little processor could go.

In a matter of minutes I'd snapped myself 3702MHz. Go you little beauty, go!

CPU-Z Validation



After steadily stepping my way through the 37xxMHz zone I hit the next milestone - 3801MHz, booyah!

CPU-Z Validation



After this I was steadily making the run for 488x8 which would result in a 3.9GHz end clock speed. Unfortunately as it booted for the mad dash it tripped, stumbled and fell into a windows file corruption! Hahah. At this point it was now 2:30am and I well and truly needed to sleep. So off to bed I went.

This afternoon I cleared the CMOS and went for a boot, windows booted fine so I conclude it was the unstable frequency temporarily corrupting the specific windows file.

All in all it was a bit of fun and amusing to see in a considerably short time span, just where this processor may go. Especially interesting as I have the Noctua NF-U12F, Swiftech Storm based water cooling loop and Kayl Frozen SS awaiting this little processor

Obviously nothing here is stable and this is simply a bit of a teaser and quick peak at the system, but I think some good things could come from this processor and general system setup
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Old 28-04-2007, 10:47 PM   #2
eva2000
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

For a moment there i thought not bad for E6700.. then i had my eyes checked E6400! so very nice indeed

From my core2 duo cpu tests using find what's memtest stable and then add 0.05-0.10v vcore to it for windows stability and you'd get pretty close to the mark for orthos stability (well for H20 cooling)
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Old 29-04-2007, 12:19 AM   #3
kayl
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

thats a nice cpu. THose cpus love FSB and arnt too hot either, should go well on phase. vdroop and vcore might get ya close to 4.4ghz
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Old 29-04-2007, 12:33 AM   #4
dinos22
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

ah the way an Ocers mind works is incredible

can't fall asleep >>> let's OC the chip
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Old 29-04-2007, 08:09 PM   #5
moloko
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

Thanks for the props guys

I'll do some runs with it under the Noctua NH-U12F and by then I should hopefully be finished testing the current configuration of the Commando setup and will replace the E6700 with the E6400 and take it for a spin on water and then phase after that. The main reason being that the Commando will be much easier to insulate in comparison with the P5B Deluxe.
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Old 27-05-2007, 02:31 PM   #6
moloko
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

Update!
Round 2 - Fight!

So I benched between 11:30pm and 3:45am last night because I had no money to go out after blowing it on some new wheels and bearings for my skateboard. Anyways, I got to know my E6400 and P5B Deluxe even better and got some solid results. During the tests I was also looking into the vdroop on the P5B Deluxe and came up with the following table of results:



Hardware used:
  • Intel Core 2 Duo E6400 L624A774
  • Asus P5B Deluxe - BIOS 0402 (will explain this in a moment)
  • TEAM Xtreem PC2-8000 5-5-5-15 2GB kit
  • Sparkle 6600GT
  • Hiper Type-R 580w
  • Samsung 80GB SATAII
  • Pioneer 111D

The only difference between the hardware use on round 1 and round 2 is the 7800GT was removed and a 6600GT put in it's place.

The cooling solutions used for round two was:
  • CPU: Noctua NH-U9 + Noctua NF-S12-1200
  • Memory: Noctua NF-S12-1200
  • MOSFET (heatpiped to chipset): None
  • Chipset: Noctua NF-S12-1200 placed bridge between HSF and graphics card and directly downwards at stock chipset heatsink
  • GPU: Zalman VF900-Cu

A few minor changes were made with the fan that was directly cooling the MOSFET heatsink was moved up to flow air downwards towards the chipsets heatsink. Also the 6600GT has a Zalman VF900-Cu on it opposed to stock cooling.

The first order of business was to find the max stable using the voltage options available at stock. Going in 100MHz jumps I ended up with 3.8GHz Orthos blend test stable for > 15mins (likely enough for 3D benching, will find out at a later date). The vcore set can be seen in the above results table by following the colour key. Here's a screenshot of Orthos blend test stable:



Last time this was my max result, now I've got it stable

So onwards I went, aiming for a new P.B. and so fell the 3.9GHz mark (note: all results are BIOS booted and not FSB-Set or ClockGen obtained):

CPU-Z Validation



By now the vcore was hitting the BIOS set max of 1.7v but only 1.616 coming through at idle and ~1.53-1.55v DMM checked at load. So with the max possible at stock set, I pushed onwards....

Bye bye 3.95GHz

CPU-Z Validation



By this point I was pretty happy as I'd already passed the old PB of 3.8GHz validation, but onwards the overclocking storm rolled and I wanted 4GHz - the best part, I got it!

CPU-Z Validation

Now I thought I could do a better overall overclock so I wanted to see if I could get the system to boot 4GHz with the memory running 1:1 with 4-4-4-4 (4-20-9-9-9-9) timings with 2.3v vdimm BIOS set. So that's just what I did

CPU-Z Validation



I haven't fully investigated the ability of these particular TEAM Xtreem PC2-8000 2GB kit and believe they can do these timings with lower volts, but none the less it's still a solid effort. The memory was run through 10x runs (I generally deem 30-50x runs completely stable) of MemTest86+ @ these frequencies and timings and then booted into windows for the above screenshots and validation.

Either way I'm pretty happy that I've now got two out of two 4GHz Club processors Now I just need to work on the available vcore and push to make higher clocks stable. I may get the water cooling out again (was dismantled about a week ago) or I may just wait until I get the phase unit happening. Either way, there's some fun to be had again when I get a chance, for now though, it's back to memory testing
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Old 27-05-2007, 02:50 PM   #7
eva2000
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Re: Late Night OC Sprint: E6400 L624A774 and P5B Deluxe

wow that's one sweet E6400 to do that on air!
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