Swiftech mcw6500 w/ pics and benches

[seedomo]

After a week or so I testing I've finally gotten stable at 3.8 using VCore set in bios to 1.6875 (after VDroop = 1.63) I'm Orthos stable as I write this for 1 hour. My Core temps started at -20c at peeked at 40c. Not to bad, I think with all those volts. I'm sure this chip needs these volts since I crash in Orthos at any lower setting. SHOULD I PUSH HIGHER? I would probably need to set Vcore at 1.75 since it would drop to around 1.68 to get 3.85 stable.

[eva2000]

wow nice.. that's alot of hdds there

[TopherTony]

Yeah seriously, I dunno about the TEC, if there si one, I am captivated by the TEN HDD'S!!!!!

Sorry that was PC pron!!! FTW!

[seedomo]

SHOULD I PUSH HIGHER? I would probably need to set Vcore at 1.75 since it would drop to around 1.68 to get 3.85 stable.

[Pete]

Why dont you do a v droop mod to slove the issue of poor over clocking?

Set ram to the slackest timings going, set your v core your happy with, up the fsb, then find the stable point there, im sure you can hit 4ghz, then back off the vcore till it fails too boot/poost then add a little. Then stress that, then tune your ram tinmings

[seedomo]

Why dont you do a v droop mod to slove the issue of poor over clocking?

I have the equipment to do the mod but don't know how to do it on this motherboard EVGA 680i.

Set ram to the slackest timings going, set your v core your happy with, up the fsb, then find the stable point there, im sure you can hit 4ghz

Since I'm running my memory unlinked to the FSB, if I understand this stuff correctly, this memory shouldn't be the problem at this point. Aren't I eliminating the memory from being the problem. Can't it only be the chip at this point?

[Solarfall]

wow nice temps, put your multiplier to 8 and test if can you clock that chip any higher. you never know, it just might work.

[seedomo]

Just changed multiplier to 8x and raised FSB to where it added up to 3.8Ghz in the bios... Then I get these strange conflicting screens, attached. Some say I'm at 4.2Ghz and another says I'm at 3.8Ghz

[Duh]

looks very very nice. swapping the 226 for the 437 watter would slap some arses

[Solarfall]

Just changed multiplier to 8x and raised FSB to where it added up to 3.8Ghz in the bios... Then I get these strange conflicting screens, attached. Some say I'm at 4.2Ghz and another says I'm at 3.8Ghz

i experienced that same thing with some settings (cant remember what they were). so have you tested did that multi changing allowed you to gain higher clock speeds? or are you still stuck with 3.8ghz

[Orangeblast]

Yes, How do you do the Evga 680i Vdrop mod?

I'd be interested as I have the same exact setup going myself, I'm lucky to hit 3.7ghz...and thats at 1.6250 before Vdrop. If I can fix that vdrop stuff then i may have a better chance at 3.8!

[seedomo]

did that multi changing allowed you to gain higher clock speeds?

No, I was able to lower the voltage a hair, literally just one increment. After testing it was clear that there was no significant difference in performance. As I write this I'm at 4.0GHz using VCore 1.7375 at idle and my temps are -20c. Should I see if its stable by running Orthos? Those could me my famous last words...

[erwinz]

very nice setup you got there..

[Holst]

Very nice indeed.
neat and tidy installations are pretty difficult to acheive with a TEC setup.
I could never get my TEC kit to fit into a case.

What voltage are you running the TEC at?
What TEC PSU?

I hope that you can get 4gig+ stable in the end.
I cant give any real advice on intel settings, but goog luck.
What are you water temperatures (load and unloaded)?

[seedomo]

Very nice indeed.
neat and tidy installations are pretty difficult to acheive with a TEC setup.
I could never get my TEC kit to fit into a case.

What voltage are you running the TEC at?
What TEC PSU?

I hope that you can get 4gig+ stable in the end.
I cant give any real advice on intel settings, but goog luck.
What are you water temperatures (load and unloaded)?

I'm running my tec with the meanwell at 13.8Volts, max. I'm using the 226w Swiftech mcw6500-t. Water temps under are about 30c. Can;'t remember if that was under load or not.

[Holst]

As you can see there is a huge difference between your loaded and unloaded temps (a massive 58*c)

If you can measure your water temps at idle (after say 30 min of using the net) then at load (after gaming when overclocked for 30 min) it will help to understand where your system can be improoved.
Let us know ambient as well.
If you dont have a "propper" thermomitor you can use a medical one if you tie string to it and drop it into your resevoire. You dont need super accuracy for this test, just a basic idea is ok.


I found that dropping water temps 5*C at load gave almost an identical drop in CPU temp.. so the colder the water the better.

If your water temps are ok then the rest of the system needs optimising if you want lower temps.

TBH I dont knwo much about the C2D's power usage but im guessing that at 4ghz its going to be a big number. Can anybody give an approximate idea of what wattage you will be putting out with a C2D @4ghz at 1.75v
(or just tell me stock wattage and ill work it out)

[seedomo]

32c water temps under heavy load at 1.6875 volts @ 3.8

[theelectic]

32c water temps under heavy load at 1.6875 volts @ 3.8

There's your problem. If your water temp is 32C and your CPU load temps is 42C, the difference between your water and CPU is only 16C. You're overshooting your TEC and it can't keep up. The difference between the hot and cold side should be a lot more than 16C Get rid of it and use a straight water setup or a phase setup.

[trans am]

Just changed multiplier to 8x and raised FSB to where it added up to 3.8Ghz in the bios... Then I get these strange conflicting screens, attached. Some say I'm at 4.2Ghz and another says I'm at 3.8Ghz

You're at 3.8ghz. the same thing happens to me when I run 7x multi on a e6400.

[seedomo]

We will see what it does with some better cooling and more volts. I'm pretty sure I'll have better results now!
The code is L627B115
Here is a screen he sent me from HIS setup using a regular fan for cooling.

[Holst]

Is that CPU temp correct?

I think you will probably do better without the TEC on your CPU.

I think your CPU is much more powerfull than the TEC can cope with.

A bigger TEC will almost definatley do better but I think a 226 is too small for your CPU.

[seedomo]

Are those temps correct?

Those screens aren't mine.
They are from the guy I'm buying the chip from, lol. He's using a Fan. My temps are more like -20c at idle and 40c under load at 1.685 volts at 3.8Ghz. Since this chip needs so little voltage 1.34 for 3.6Ghz I will probably be able to run it at 1.65, maintain good temps and hit much higher speeds. Imagine 1.34 for 3.6Ghz, seriously.
It might go like this:
3.7 @1.45
3.8 @1.50
3.9 @1.57
4.0 @1.68
I'd love to play with Phase and might just get one since I'm having so much fun learning to overclock! Kind of like building a hotrod, just a lot easier.

[Holst]

Oh im sorry. I didnt understand you post.
I thought you had just received the new chip.. I thought you might be testing yourself on air.

Hopefully you will do much better on this new chip as your temps will be much better if you can keep the voltage down.

Let us know how you get on when you receive it.

However... I dont think the TEC is giving you any great gains over straight watercooling at load..
But changing to a bigger TEC isnt easy at all

[serialk11r]

That MCW6500, if the TEC isn't doing well, you can always take the TEC out, the 6500 should be a great block.

[Siron]

What is the red stuff all over your board?