trying to achieve a blend of Stability/Performance

[PoopyPants]

ok i am trying to figure out whats up with my system

3500+ Newcastle (she will do up to 2.7ghz but not stable the sweet spot of 100% stable is inbetween 2.55ghz and 2.6ghz but usually i dont have issues with 2.6ghz althought Pi dont like it)
1 gig OCZ PC4000 EL Gold Rev 2
MSI NEO2 Plat
OCZ Powerstream 600w

after using the guide here i have determined that my max HTT/FSB of this board is 270mhz
i dropped ram to 100mhz
dropped cpu multi to 6x
and kept the volts up on everything.

raising the HTT it seems as if 270 is the max no matter what multiplier or Ram divider i use.

so in the end i settled with a solid 255x10 1:1 2.5.3.3.10 1T
the screen below shows around 1.65v it dont need that to run 2.55ghz i just did that as i was still testing.

take a look what do you guys think i should be doing or havent done that may be causing the HTT to peak out at 270mhz. although HTT peaking is the motherboard not the ram. or the ondie memory controller ? lol i forget.
i find that very very odd because this PC4000 should be able to handle 1:1 upwards of 290mhz (my old kit i did do 311mhz on a 9:10 divider on a DFI skt754 board)

the msi makes me mad since it only has a max vdimm of 2.85 but i have the 3.3 rail running at 3.55v (raising the 3.3rail should cause the vdimm chip to also raise the voltage to the dimms so 2.85v isnt correct its higher but i have no idea how mich higher.
i cant find my MM and i dont know how to check true vdimm.)
does someone have a guess at what the vdimm would be if i set it at 2.85 in the bios and raised the 3.3v rail to 3.5v ?

anyways take a look...
im not real happy with the CPU arithmatic and multimedia from sandra but the memory benchmark gave me results im pretty pleased with considering im only running an HTT of 255.

anyways any advice that you gents/ladies may have to help me increase this thing is greatly appreciated.

and happy early 4th everyone. Its raining here in Iowa

Overclocking Screen

 

[Shimmishim]

here's the deal with the vdimm voltage... just because you modded the rails to give you 3.55 doesn't automatically mean that the board will detect that your voltage is higher and raise it accordingly... you will need to vmod that motherboard so that when you increase the voltage on your psu, then it'll follow suit on your board... i believe there is a mod that does this but it's no fun to perform (check out the modding section over at xtremesystems.org for more info)

also, what bios you using? have you tried any of the newer ones? i have a feeling one of hte newer ones might help you get higher htt.

 

[furballi]

2.5 to 2.6GHz is the norm for this CPU. Keep the RAM around 2.5-3-3-8-1T using 1:1 or 5:6 memory divider. Also keep the multiplier @ 11x. You can drop the RAM to 2.5-2-2-7-1T to see if there's any improvement with Super Pi.

 

[PoopyPants]

2.5-2-2-7 woah no way this ram will run 2-2- , not doubting you but ive never seen anyone drop it that low
even the ocz guys dont tell people to drop it.

gotta remember this is Hynix D5 chips. not TCCD or Winbond the D5 chips are high FSB scaling chips not low latency low overclock chips.
Also the HTT mutliplier is set to 2x although 3x and 2.5 and 1.5x and 1x dont make any difference on overclocking.


right now Video encoding tests are causing the system to flat out reboot at 255x10 1.60v 1:1 2.5-3-3-10
but pie and prime will run just fine

VERY VERY frustrating

And Bitchbreaker from SNT systems nd another guy at pcperspective have advised me that raising the 3.3v rail above 3.3v will trick, in a way, the onboard voltage regulator since its set to see 3.3v when you go higher it raises the true vdimm higher
if this is not true i dare anyone to try and tell bitchbreaker that lol. you'll be put in your place real quick lol.

now one question i havent asked anyone.

even if i have the ram set to 100mhz,,,, does the vdimm effect my peak HTT ? i would think not since my ram is running at 1/2 its rated speed.
i would think the vcore would effect htt speeds more since the chip has the ondie memcontroller.
unless my thinking is way off on that.

thanks fellas keep the thoughts coming.

 

[PoopyPants]

and no this ram will not run below 2.5-3-3-5.

i have a feeling its just this board or the ram..... but im still testing...
this chip came from bitchbreaker over at SNT Systems so if you know him you know he dont mess with faulty chips.

this has all been done with both sticks of ram so im getting ready to make some runs with 1 stick at a time so ill report back.

btw happy 4th everyone.. it is still raining here in Iowa.

 

[PoopyPants]

well the chip is now up for trade or sale so i can get a venice.

this newcastle which seems to top out on this particular board at 2550 for max stability. and a gig of corsair pc3200 for a proven venice 3200