ASUS P5N-E SLI 650i Thread - Page 700 - Overclock.net

teabag · 05-16-08

Hello (yes i'm new here)
I just wonder how do you guys here overclock this board?!?
I got this p5n-e and a e6600 but i cant get past ~2650mhz without the computer being totally unstable. it doesnt even boot at 2.8ghz, i got it to boot at 3.0ghz one time but it crashed just after the POST and that was with a too high vcore. I have tried everything, increasing the vcore and NB volt, tried about 150 different fsb's (if i my board has a FSB-hole, it seems to be eveywhere) and changed the cpu's multiplier. Tried 2.666ghz with 8x multiplier, windows booted but the pc wasnt stable at all. I would be happy if i could get it to 3ghz and with a temp under 70c, is this impossible??

btw what is the default vcore for E6600?

one more thing, i tried to make the computer start with the space-bar (some option in the bios) but that didnt work either (i moved the kbpower-thing on the board too)

http://www.overclock.net/system.php?i=24439

cheers

Gauvenator · 05-16-08

Quote:

Originally Posted by teabag

Hello (yes i'm new here)
I just wonder how do you guys here overclock this board?!?
I got this p5n-e and a e6600 but i cant get past ~2650mhz without the computer being totally unstable. it doesnt even boot at 2.8ghz, i got it to boot at 3.0ghz one time but it crashed just after the POST and that was with a too high vcore. I have tried everything, increasing the vcore and NB volt, tried about 150 different fsb's (if i my board has a FSB-hole, it seems to be eveywhere) and changed the cpu's multiplier. Tried 2.666ghz with 8x multiplier, windows booted but the pc wasnt stable at all. I would be happy if i could get it to 3ghz and with a temp under 70c, is this impossible??

btw what is the default vcore for E6600?

one more thing, i tried to make the computer start with the space-bar (some option in the bios) but that didnt work either (i moved the kbpower-thing on the board too)

http://www.overclock.net/system.php?i=24439

cheers

To find your default voltage, use CoreTemp, and VID is your default voltage (it varies from cpu to cpu).

Make sure you're fsb is unlinked in advanced>jumperfreeconfig>fsb (iirc) then you can adjust the cpu without touching the ram which could cause instability.

As you raise your speed, it may become unstable and then you will need to raise the voltage a knotch or two. 1.5v vcore is the absolute maximum, but watch your temps, try to keep it below 60C load. Raise your fsb in 20mhz increments and test with orthos for a few minutes after each raise, and then every 100mhz test for 1/2 hour.

Good luck!

Edit: Also make sure you set your ram timings manually for stability.

Ghostleader · 05-17-08

Quote:

Originally Posted by Ravin

Hey jump on in! Nice SuperPi time there- like I said, clock for clock the 45nm chips are indeed faster, looks like in this case 2 seconds faster.

Humor me and run your ram at my spec....

Thank you

Here´s a run with your ram spec, I had to push memspeed to 2,34

, so you have some good ram there Ravin, I have not tested for stability, just did this Super PI run.

Ravin · 05-17-08

Quote:

Originally Posted by Ghostleader

Thank you

Here´s a run with your ram spec, I had to push memspeed to 2,34

, so you have some good ram there Ravin, I have not tested for stability, just did this Super PI run.

I t40ug4t y0u 4ad 1200m4z ram.... 1128 s40uld be way under 2.34V 4 y0u????

sry b0ut t4e leet speac......ceyb0ard is 0n t4e blinc

Elpida J die 70nm 4TW!!!!!!!!

Ghostleader · 05-17-08

Quote:

Originally Posted by Ravin

I t40ug4t y0u 4ad 1200m4z ram.... 1128 s40uld be way under 2.34V 4 y0u????

sry b0ut t4e leet speac......ceyb0ard is 0n t4e blinc

Elpida J die 70nm 4TW!!!!!!!!

Yes but not with cas 4, when I run 1200 5-5-5-15 it´s about 2,26 2,28.

smizzoker · 05-17-08

Yeah, i got no problem keep this at 2.66-2.69, once i get past 2.7 this become unstable. 2.7 will boot and no problem and fine with prime, but sometimes, shutdown hangs, 2.8 system will boot but getting blue screen right after it finishes loading windows. VID 1.3000 , I've up vcore to 1.35 / nb 1.39, but still get same results at 1.4vcore (but i dont think i need to be this high @2.8ghz do I?) set mem to 2.17v also. sorry very new at this.

teabag · 05-17-08

Quote:

Originally Posted by Gauvenator

To find your default voltage, use CoreTemp, and VID is your default voltage (it varies from cpu to cpu).

Hm i seen that VID in coretemp but didnt know what it was, but ok, now i know.

Quote:

Originally Posted by Gauvenator

Make sure you're fsb is unlinked in advanced>jumperfreeconfig>fsb (iirc) then you can adjust the cpu without touching the ram which could cause instability.

It's already at unlinked, 1126fsb and 813 ddr

Quote:

Originally Posted by Gauvenator

As you raise your speed, it may become unstable and then you will need to raise the voltage a knotch or two. 1.5v vcore is the absolute maximum, but watch your temps, try to keep it below 60C load. Raise your fsb in 20mhz increments and test with orthos for a few minutes after each raise, and then every 100mhz test for 1/2 hour.

It isnt below 60c even at stock speed and it isnt stable at 2.8ghz even if i set vcore to 1.46. I think that's strange because i've seen other people with the same board and almost the same cpu (e4300) and they can get to 3.2 ghz with 1.28 in vcore, and 3.4+ with ~1.35v.

But i will test that 20mhz-thing anyway to see what happens.

Another strange thing is when i set the vcore for example at 1.3v, it shows up as 1.34 and 1.25 shows up as 1.29-1.3v... is that normal?? and with the +100mv option on it's even higher then i put it at.

it is OCCT stable for 5h at 2699mhz but i dont remember what vcore i had then.

Auto-vcore is 1.6v!?

Quote:

Originally Posted by Gauvenator

Edit: Also make sure you set your ram timings manually for stability.

Already done that, 5-5-5-18-2T like the team group homepage said.

edit: ok, i got it stable for some minutes at 2.75ghz (orthos and vcore 1.34 = 1.39-1.4) but the temp was around 80c so i canceled the test. comments? if it's like this, i cant understand how others can get to 3ghz+ with ~1.30 in vcore.

stable for 15 minutes now @ 2.70ghz 1.345v, max loadtemp 72c

edit2:
reseated the heatsink and got 3 new load-temps,
orthos small fft-test = 56c
orthos blend-test = 48c
and CPU burn-in maximum heat generation-test = 44c
the vcore was stable at 1.344 (when set to 1.30), even under load

Ravin · 05-17-08

Quote:

Originally Posted by Ghostleader

Yes but not with cas 4, when I run 1200 5-5-5-15 it´s about 2,26 2,28.

maces me t4inc I can 4it 1200 cas5 at 2.20V

g0tta play wit4 my subtimings......

Gauvenator · 05-17-08

Quote:

Originally Posted by teabag

Hm i seen that VID in coretemp but didnt know what it was, but ok, now i know.

It's already at unlinked, 1126fsb and 813 ddr

It isnt below 60c even at stock speed and it isnt stable at 2.8ghz even if i set vcore to 1.46. I think that's strange because i've seen other people with the same board and almost the same cpu (e4300) and they can get to 3.2 ghz with 1.28 in vcore, and 3.4+ with ~1.35v.

But i will test that 20mhz-thing anyway to see what happens.

Another strange thing is when i set the vcore for example at 1.3v, it shows up as 1.34 and 1.25 shows up as 1.29-1.3v... is that normal?? and with the +100mv option on it's even higher then i put it at.

it is OCCT stable for 5h at 2699mhz but i dont remember what vcore i had then.

Auto-vcore is 1.6v!?

Already done that, 5-5-5-18-2T like the team group homepage said.

try setting your ram to 800 instead.
It's normal for your vcore set in bios to not correspond exactly with monitoring apps. Additionally you will notice that the vcore drops under load; that is known as vdroop, and it is normal.

Are you sure you seated your heatsink correctly? If you're exceeding 60°C at stock vcore, that's not good.

Try skipping over 2.8ghz and going to 2.9 or 3 with a little extra vcore. You could be in an fsb hole at 2.8.