Q9450 OC / Temps / Settings

[truehighroller]

I need to penny mod mine to I think..

[ewitte]

GA-EP45-DS3R and Q9550
3.4Ghz - All I did was change the vcore to 1.3v and FSB to 400 Lots of testing/tweaking left.

[Singh400]

You could probably drop the vcore to at least 1.2. Don't need that much pumping into the chip, in my opinion.

[angelreaper]

Would like to see IBT 10x and maximum temps for that.

IBT test:

After IBT test:

[Slovnaft]

wow, nice temps!

On another note, anyone have any experience with this chip on a 790i board?

[truehighroller]

Gotta love water, or really cold air conditioning lol.

[Avantlord]

it seems that i´m bad whit my sets.... look:

vCPU= 1.375v
vFSB= 1.350v
vMCH= 1.425v
FSB= 430Mhz
multi= 8
memory= 1718Mhz
Ref= 400Mhz
idle= 34ºc
load= 51ºC
Aux(i think this is northB?)= 33ºc

gtls and ttl when i get home

[Singh400]

Well managed to sort my temps out, they no longer brush 70c, and they hold steady at 65-66c. Vcore is at 1.20000 exactly. Working on dropping all the others voltages, will share my settings when I find the lowest possible stable settings.

Also, has anyone noticed that this chip (maybe others aswell) has like a "break in" period? For example, I ran IBT last night with pretty much the same volts, and ran it again today, but this time the temps weren't as nearly as high. A good 5C difference.

IBT test:

After IBT test:

That's pretty impressive, whats your setup? Also, could you please share you BIOS settings?

it seems that i´m bad whit my sets.... look:

vCPU= 1.375v
vFSB= 1.350v
vMCH= 1.425v
FSB= 430Mhz
multi= 8
memory= 1718Mhz
Ref= 400Mhz
idle= 34ºc
load= 51ºC
Aux(i think this is northB?)= 33ºc

gtls and ttl when i get home

Isn't 1.375 the max for the Q9450? I think thats waaayyyy to high. I run mine at 3.4 Ghz with 1.17500. Start at 1.25000 and drop down.

[ewitte]

You could probably drop the vcore to at least 1.2. Don't need that much pumping into the chip, in my opinion.

It wasn't stable even at 1.275v but I didn't adjust anything else.

[TheScavenger]

It wasn't stable even at 1.275v but I didn't adjust anything else.

Don't sweat the Vcore you're running. 1.2V is freakishly low for running 3.6GHz. I run 1.296V at 3.6GHz.

[Slovnaft]

Don't sweat the Vcore you're running. 1.2V is freakishly low for running 3.6GHz. I run 1.296V at 3.6GHz.

Actually, with later batch chips (>815) we're seeing much lower vcores, like 3.6 at 1.2. Hell on my P45 board i was running 3.9 at 1.28...

[TheScavenger]

Actually, with later batch chips (>815) we're seeing much lower vcores, like 3.6 at 1.2. Hell on my P45 board i was running 3.9 at 1.28...

Ahha, my batch number is L811A951. I guess I just missed out on the 'low Vcore' shipments.

I am using a G35 chipset motheboard, however. Maybe I'll be able to drop my Vcore a little more when my P45 board gets here.

[Avantlord]

Isn't 1.375 the max for the Q9450? I think thats waaayyyy to high. I run mine at 3.4 Ghz with 1.17500. Start at 1.25000 and drop down.

the max? ok i´m on it

those are may Gtls

GTL ref0= 67
GTL ref1= 66
MCH GTL ref= 67

MCH DDR ref= 50

Dimm ch a dq= 50
a ca= 50

b dq= 50
a ca= 50

i´m lowering the Vcpu now, i have it 1.325 and geting down

[Singh400]

Well according to this. It's 'VID Voltage Range: 0.85V – 1.3625V'. I'm sure there's a little give/take on that range though.

Tried 3.8 Ghz last night at 1.25000, everything was going well with the IBT test, and then it froze half way through. Mind you cores 0 & 1 had been on 70c for a couple of minutes. Guess I must have tripped the ProcHot switch

I wonder if I can do 3.7 Ghz then

[ewitte]

Don't sweat the Vcore you're running. 1.2V is freakishly low for running 3.6GHz. I run 1.296V at 3.6GHz.

Its something other than vcore because I upped it 200mhz to 3.6Ghz and I'm playin with the same vcores actually sometimes it runs slightly lower. Temps seem fine though says 31C now idle and max was 58/58/56/56 with all four cores buringing in.

EDIT: Looks more stable after updating the BIOS

[truehighroller]

Glad I could help.

[Vatos_locos]

the max? ok i´m on it

those are may Gtls

GTL ref0= 67
GTL ref1= 66
MCH GTL ref= 67

MCH DDR ref= 50

Dimm ch a dq= 50
a ca= 50

b dq= 50
a ca= 50

i´m lowering the Vcpu now, i have it 1.325 and geting down

you need your VTT voltages to calculate you gtl's it's simple math VTT * Gtl's try to find in witch spot is better for your chip 68 until 70 is ok for daily use if you do the math that is ~ 0.9 to 1.1 Volts test it and see where it behaves best my chip likes better 68% Gtls with 1.43 Vtt witch is 0.97V

[Avantlord]

you need your VTT voltages to calculate you gtl's it's simple math VTT * Gtl's try to find in witch spot is better for your chip 68 until 70 is ok for daily use if you do the math that is ~ 0.9 to 1.1 Volts test it and see where it behaves best my chip likes better 68% Gtls with 1.43 Vtt witch is 0.97V

thx men i´m now at 450 fsb with this specs:

vFSB= 1.35
Vcpu= 1.325
vMCH= 1.475
vRAM= 2.1
multi= 7

but i´m unestable, some where i had read that for 45nm quad gtl´s by rule are more or less 0.63, is that correct?

[ewitte]

lol at the droop (BIOS is at 1.325v)

[Slovnaft]

WOW that is some droop!

what board? perhaps you need to break out the soldering iron...

[ewitte]

Gigabyte P45 DS3R. Prime is still running just took a screen shot to show where I'm at. Mind you stock was only about 95% stable with this Chip on my 680i board!

[Slovnaft]

I actually had pretty bad vdroop on my gigabyte X48T-DQ6, that's why I RMAd it. wonder if this is characteristic of gigabyte boards or just bad luck?

[Avantlord]

guys, i need some help...

Which is the max Vtt and Vcore i can give to this chip before it begins to electromigrate? also which is the max Vnb(Vmch) for a x38?

[Singh400]

Well I've decided to give up on 3.7 / 3.8 Ghz for now. The system locks up during IBT - out of the 5 runs I did, it only managed to complete IBT once, and even then the temps were insane, never leaving the high 60c's and sometimes brushing 70c. It's a far cry from my 60c max temp with 3.2 Ghz. I'm happy at 3.6 Ghz for now... Yet to do a P95 run on that though (12 hour run). I'm starting to think my cooling isn't up to scratch, or might need a push and pull fan setup on my TRUE.

lol at the droop (BIOS is at 1.325v)

Wow! Have you enabled Load Line Calibration that's meant to reduce the vdroop (or vdrop?).

guys, i need some help...

Which is the max Vtt and Vcore i can give to this chip before it begins to electromigrate? also which is the max Vnb(Vmch) for a x38?

I personally wouldn't go above 1.30 for vtt and 1.33 for vcore. But every setup is different, and of course people's ideas of what is acceptable and what isn't also varies.

[ewitte]

I'll see if I can find that load line calibration option. It died on me after 3 hours, upped to 3.8Ghz and 1.35v BIOS (max I'm going to go) and it ran all night. Only 8 ours but I'll run it again when I have a 12+ hour timeslot.