*** MSI P6N SLI Platinum OVERCLOCK 650i ***

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ugzz

Junior Member
Mar 31, 2008
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well i did 1.4 before i had the fan, and i couldn't really get anymore headway, so i wanted to try max to see if i had more luck, but before i even tried to push anything further i just wanted to see if it was stable @ 1.5.. well it was, for 3 days.. before everything just shut down lol

ah well, tx for the help throughout and the info/ideas. it was fun reviving this thread and keeping it useful.
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
3 days? lol ouch!

No doubt this thread will be back again ;), the Asus A7N8X one keeps popping back every now & then! :Q (although many people have either sold the mbrds or the caps died on them).

Np btw :).
 

ugzz

Junior Member
Mar 31, 2008
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well i loved my p6n, served me well, not every board could take a 1.86 stock chip to 3.2ghz stable :D.
but i gotta say with this 750i i got the new e8500 to 4.0 before i even loaded windows lol.
once i had windows up and running i was able to tweak to 4.4 but it took 1.45v vcore to do that and that bumped me to 75c load. that was too high for my blood, so i went to 4.35 which runs at 1.375, lowers to the temp to 69 @ load. so im happy now.
went from from 2800 in cpu score in 3dmark up to right around 4k. im happy :D
-also my 1066 geil ram now runs at 1066, with the p6n it would only run at 950, any higher would blue screen. and yes, i set the voltages appropriately ;)
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
Nice o/c on the new rig :cool:.
You should put that power to good use when you're not gaming *points to sig* ;).
 

spdfreak

Senior member
Mar 6, 2000
939
68
91
So, all I want to do is run my Q6600 at 333fsb... no crazy high OC's. Since that is a standard fsb freq, I figured it would be pretty easy. I left everything at defaults except C1E disabled and it booted fine and would run prime or encode video all night at 100% cpu. But it is flaky and will bluescreen every once in a while or get errors and shut down firefox. Totally random stuff when the system is not loaded at all. When I set it back to 266 all is good. Any ideas or suggestions on what to try?
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
Yea I doubt you'll manage that on default voltages.

Are you sure it ran P95 allnight with no errors? I'd be surprised if the system was that unstable if it had, if it was try OCCT instead, anyhow....

Have you disabled INTEL EIST? that throttles back CPU speed & vcore under light load conditions.

If you have disabled EIST then firstly try each of these seperatley, 1 step at a time & test each setting. If it makes no difference then set it back to default.
Increase vcore, NBv & FSB VTT, keep an eye on CPU & NB temps (NB via touch;)).
 

spdfreak

Senior member
Mar 6, 2000
939
68
91
OK, I've been playing around with different speeds, and it is stable at 2.8 with stock volts and +4% VTT. EIST is disabled and temps are really no higher than at stock with the stock cooler. I've been using the Linpack Intel burn test to check stability between changes. Strange thing is that it will error immediately with the "windows has had to shut down this program" box if I select maximum memory usage. If I select 1/2, it will run forever. I have 4 1G sticks of Corsair XMS but xp (32bit) only sees 3 as usual. I'm wondering if that has something to do with the error- it is trying to use more memory that windows will allow.
At any rate, I would think that default NB voltage and temps should be OK even at 333 since that is a standard supported FSB. But something is holding it back.
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
Looks like I won't be selling my P6N after all, I'm keeping it for 2nd rig where it'll run a E5200, now I know my mbrd will do 400 MHz FSB on a 65nm duo, so if the same holds true for 45nm version then it'll be more than enough with it's x12.5 multi :).

Originally posted by: spdfreak
At any rate, I would think that default NB voltage and temps should be OK even at 333 since that is a standard supported FSB. But something is holding it back.

No, because you are running an o/ced FSB for that CPU, as I think I've mentioned somewhere in this thread, when I had my Q6600 @ 3GHz on the P6N with 333 MHz FSB I had to increase NBv, FSB VTT as well as vcore a little.
Try bumping up your NBv if you want a higher clock speed :p.

Re RAM errors, yes sounds plausable.
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
Well MSI list 45nm dual cores as supported by this mbrd, but it turns out that some versions don't support these CPUs!, why the hell they don't say I don't know! :|

Anyway, apparently if the little sticker near the CPU socket shows 01,02 or 03 it won't run 45nm CPUs :disgust:, I've yet to confirm that though, hopefully I'll hear back from MSI in the next few days.
 

ugzz

Junior Member
Mar 31, 2008
16
0
0
good to see this thread still moving along :D.
after my p6n being resurrected from the dead, its been totally fine. Im setting it up now as another system ill either use as a replacement for a brand name dell e4300 i have in the basement or sell it to my dad. either way, it will continue to Live On!

i also read about some versions and models being finicky with the 45nm. looks like this is happening all over with the 650, and even the 680is.. sucks, i mean you pay top dollar and expect it to be awesome and updated for a good while. and while this board sure isnt new, its not ancient either :p

ah well, such is computing, if it was awesome and perfect, i wouldnt have a job :D!
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
True, but where the makers website says its supported it damn well should be! :p;)

Anyway, I'll be RMAing the mbrd & MSI will be fixing it I think, or replacing it.
 

filibusterman

Golden Member
Apr 2, 2005
1,319
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Originally posted by: Assimilator1
Looks like I won't be selling my P6N after all, I'm keeping it for 2nd rig where it'll run a E5200, now I know my mbrd will do 400 MHz FSB on a 65nm duo, so if the same holds true for 45nm version then it'll be more than enough with it's x12.5 multi :).

Originally posted by: spdfreak
At any rate, I would think that default NB voltage and temps should be OK even at 333 since that is a standard supported FSB. But something is holding it back.

No, because you are running an o/ced FSB for that CPU, as I think I've mentioned somewhere in this thread, when I had my Q6600 @3 GHz on the P6N with 333 MHz FSB I had to increase NBv, FSB VTT as well as vcore a little.
Try bumping up your NBv if you want a higher clock speed :p.

Re RAM errors, yes sounds plausable.

Wish I would have known to bump the NB or SB up when using a new chip. I have had a e4300 in there at 3.2-3.3 stable then updated the bios for using a q6600 and it wasn't even stable at stock speeds (random BSOD). Since then i just swaped back in the e4300 since most games don't use 4 cores anyhow and now I have problems keeping the 3.2 with the new bios. I will try upping the NB and SB and disabling the spectrum stuff. Does anyone know what a safe bump in teh vcore would be? I will probably just base it on temp and stability i suppose.
 

filibusterman

Golden Member
Apr 2, 2005
1,319
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0
Originally posted by: Assimilator1
That Q6600 should of been fine in your mbrd (mine was), sure it wasn't something else? PSU maybe??

As for max vcore, Intel quote a max of 1.5v, however like you said I would go with temps primarily.

Its a so so Ultra 600Watt PSU and I have 3 harddrives and an 8800gts 640mb. All was fine with the dual core but I don't know how much more power draw there is out of the quad. Additionally it would BSOD on idle but i guess with my GPU the e4300@~3.3 is good enough to get reasonable frame rates on all but crysis so I wont complain.
 

spdfreak

Senior member
Mar 6, 2000
939
68
91
Originally posted by: filibusterman
Originally posted by: Assimilator1
That Q6600 should of been fine in your mbrd (mine was), sure it wasn't something else? PSU maybe??

As for max vcore, Intel quote a max of 1.5v, however like you said I would go with temps primarily.

Its a so so Ultra 600Watt PSU and I have 3 harddrives and an 8800gts 640mb. All was fine with the dual core but I don't know how much more power draw there is out of the quad. Additionally it would BSOD on idle but i guess with my GPU the e4300@~3.3 is good enough to get reasonable frame rates on all but crysis so I wont complain.

Are you saying that your Q6600 isn't stable at stock speed or OCed? My 6600 is fine at stock speed and even OCed to 2.8GHz. It just won't run at 333 fsb (3GHz) with stock voltages. Try running you memory at 1:1 so that you eliminate any problem there. Maybe try flashing your bios back to v2.5 which seems to work fine for the older quads.
 

Assimilator1

Elite Member
Nov 4, 1999
24,137
510
126
He said even at stock speeds, although it isn't clear whether that was with the Q6600 or the E4300.

filibusterman
When I went from a E6420 o/ced to 3.2 GHz to a Q6600 o/ced to 3 GHz power draw at the wall with CPU loaded went up from ~180w to ~220w. If that's any use to you.

Btw which CPU was it unstable with even at stock speeds?