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oc results: 2.8C, IS7, slk947, Geil Pc4000

C

Corporate Thug

Lifer
with actual voltages, i went straight to 250 mhz fsb with 1:1 ratio with Geil pc4000 @ cas2.5

priming away for a couple hours now @ 3.5 ghz, temps very good: about 45C under full load

i'm really impressed with the geil pc4000, booted into windows with a 2.4C @ 270 mhz, no bad for being the cheapest dual channel kit at newegg. even rated cas 2.5

and HT is quite useful, running prime and surfing the net, writing a midterm paper with no lag at all

very happy with this combo, 2.8C is a bit more pricey than the 2.6C but it was worth it in this case

only benchie i have run is 3dmark: ~19500

the only question: is that game accelerating bios thing that abit has only for IC7???

edit prime failed in 2 hours 8 minutes with a rounding error. looks good at 3.4 ghz. should i bump vcore to 1.625 actual volts???
 
congrats! nice OC...i'd go ahead and give it a little more voltage to see if you can get it stable @ 3.5GHz...unless you are ok running it @ 3.4GHz instead. hey how loud is your hsf?
 
what O/S are you running?

i dunno if this is your first p4 o/c or not but you need to run 2 instances of prime95 at once...

if you check your task manager, you'll see that only 50% of cpu is being utilized..

it's the whole hyperthreading thing...

 
Nice one Shady..

I would go for 1.625 as i had no issues with a 2.4B@3ghz on stock HSF...

3.5 should be a no brainer with that voltage..

Looks good..

😀
 
Originally posted by: Shimmishim
what O/S are you running?

i dunno if this is your first p4 o/c or not but you need to run 2 instances of prime95 at once...

if you check your task manager, you'll see that only 50% of cpu is being utilized..

it's the whole hyperthreading thing...
Click to expand...

also, when you speak of running two instances of SETI if using a P4C, will i see two SETI Drivers in my system tray? or is it just a matter of opening SETI Driver and setting "maximum processes" to 2?

EDIT: oops...just realized you were talking about prime95. well its obviously getting late around here, so i better hit the sack before i ask anymore delerious questions...
 
Originally posted by: Sunny129
Originally posted by: Shimmishim
what O/S are you running?

i dunno if this is your first p4 o/c or not but you need to run 2 instances of prime95 at once...

if you check your task manager, you'll see that only 50% of cpu is being utilized..

it's the whole hyperthreading thing...
Click to expand...

also, when you speak of running two instances of SETI if using a P4C, will i see two SETI Drivers in my system tray? or is it just a matter of opening SETI Driver and setting "maximum processes" to 2?

EDIT: oops...just realized you were talking about prime95. well its obviously getting late around here, so i better hit the sack before i ask anymore delerious questions...
Click to expand...

set max processes to 2 instead of running 2 instances 🙂 that's what i do at least..

if you run 1 instance, you'll see that only 50% is utilized...

so shady, be sure to double prime95 your cpu!!! it's not amd anymore!
 
great point shim, thanx, i'll make sure to do that

i'll try 1.625 V

sunny 129, i'm using a smart fan II @ 3000 rpm, it is definately audible but not loud
 
Originally posted by: shady06
great point shim, thanx, i'll make sure to do that

i'll try 1.625 V

sunny 129, i'm using a smart fan II @ 3000 rpm, it is definately audible but not loud
Click to expand...

thanks for the info...i just got my 2.6C yesterday. i probably wont have time to install it for another week or so, but i kinda want something nicer than the stock hsf, even though many people are getting decent OCs w/ it. i figure if i want to push mine farther than the average OC, i should get a nicer cooler. so i'm debating between a zalman or an SLK or something...
 
slk has been very impressive although it is indeed a pain in the @$$ to install.


btw, the northbridge fan on the IS7 is the screamer, damn thing spins @ ~6000 rpm according to hardware monitor. i guess that is the price you pay for 1000 mhz fsb
 
Do you have an aftermarket cooler on the NB chipset??? If so what kind...What are your reported NB temp and do you trust the system temp of the hardware monitor??? I think it seems a bit low at 26c eventhough the cpu temps get 58c under extreme load.....

I flooded my room last night with 30f air and the temp on the cpu went down to 52c load and the system temp only went to 24c...I don't trust it....I would think mid 30's would be more like it....

What vagp are you giving the NB chip???

I am at 250fsb right now and can't do much better but I am leaning towards more of cpu limitation but I need to study the lower fsbs to see if Ihit a wall or see a gradual need more more vcore...
 
Originally posted by: shady06
slk has been very impressive although it is indeed a pain in the @$$ to install.


btw, the northbridge fan on the IS7 is the screamer, damn thing spins @ ~6000 rpm according to hardware monitor. i guess that is the price you pay for 1000 mhz fsb
Click to expand...

i'm assuming you're talking about the n/b cooler that come on the board, correct? anyways, i'm glad you mentioned it. i have mine unplugged so the fan doesn't spin. i really don't need it right now since i'm still using my 1.6A and the fsb is only around 533mhz. if i get an aftermarket n/b cooler, will a passive one be enough for when i OC my 2.6C? or will i need one w/ a fan? i was kinda hoping i could get a way w/ a nice passive cooler when i get around to OCing my 2.6C...
 
Originally posted by: Duvie
Do you have an aftermarket cooler on the NB chipset??? If so what kind...What are your reported NB temp and do you trust the system temp of the hardware monitor??? I think it seems a bit low at 26c eventhough the cpu temps get 58c under extreme load.....

I flooded my room last night with 30f air and the temp on the cpu went down to 52c load and the system temp only went to 24c...I don't trust it....I would think mid 30's would be more like it....

What vagp are you giving the NB chip???

I am at 250fsb right now and can't do much better but I am leaning towards more of cpu limitation but I need to study the lower fsbs to see if Ihit a wall or see a gradual need more more vcore...
Click to expand...

i have the stock cooler, i dont trust hardware monitors temp but i think it reports rpm pretty acurately

the chipset voltage is default, maybe i should give it some more juice??
 
I start at 1.6v whenever I pln on ocing these chipset 30-50mhz...However when I ran into a wall nothing above 1.6v or even dropping it back to 1.55v made a difference...Sometimes I have seen it make a difference so I definitely would run it at 1.6v anyways...It is safe on the vid card...
 
I wish i could say the same guys:

Linkified

Shady Congrats man
Do you have the smart fan Pushing air INTO the HS or pulling air OUT of the HS..on their website it says to have it Pushing air INTo HS...but just wanted to see what you had.

Any help guys? lol...
 
Originally posted by: shady06
with actual voltages, i went straight to 250 mhz fsb with 1:1 ratio with Geil pc4000 @ cas2.5

priming away for a couple hours now @ 3.5 ghz, temps very good: about 45C under full load

i'm really impressed with the geil pc4000, booted into windows with a 2.4C @ 270 mhz, no bad for being the cheapest dual channel kit at newegg. even rated cas 2.5

and HT is quite useful, running prime and surfing the net, writing a midterm paper with no lag at all

very happy with this combo, 2.8C is a bit more pricey than the 2.6C but it was worth it in this case

only benchie i have run is 3dmark: ~19500

the only question: is that game accelerating bios thing that abit has only for IC7???

edit prime failed in 2 hours 8 minutes with a rounding error. looks good at 3.4 ghz. should i bump vcore to 1.625 actual volts???
Click to expand...

Nice! I want to get a 2.8C for my next upgrade when I have the money.

1.625V is ok, maybe a tad bit high. What do you need to set in the BIOS to get this voltage? 1.675? 1.7V? I know my IC7 undervolts like crazy! I'd stick with 1.60V actual for these new "C" chips but I'm sure 1.625V is ok.

1.7V actual on a "C" is suicide.
 
the is7 undervolts about .2-.25V, i have it at 1.6 actual volts, ran 2 instances of prime for 12 hours, no errors. i think i will just keep it @ 3.4 Ghz, maybe but the Voltage down another .25 and run prime again
 
hey guys...just installed my 2.6C. i can't do anything fancy with it yet because i still only have PC2700 in my box. hopefully in the next week or two i'll have 1GB of some PC4200 or something.

in the mean time i'm running only one instance of SETI, and yet my CPU usage is at 100%. i thought it was supposed to be 50% w/ HT enabled (and yes i did check to see if HT was enabled in the BIOS). anyone know what's going on w/ my system?
 
im glad you finally did it shady lol cause i wanted to see how the IS7 o/ced before I bought one! But as pelikan said, how much faster does it seem than your Barton? Because I'm like 98% towards the P4 2.6c (and run 250FSB, to hit 3.25GHz), but a little part of me wants to save the $80 and go AMD, even though I know the 2500+ barton at 3200+ can't compete lol.
 
that is VERY strange....

i'm checking seti right now and with 1 instance it shows up at 50% and as two, it shows up as 100%.

check your bios ONE more time... 🙂
 
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