Ket's & Tigger's P45 OC thread

[Ketxxx]

Go check the P5Q thread CrAsHnBuRnXp, its uploaded

 

[Ketxxx]

Just had a thought.. I think us P5Qers will like this one.

CHALLENGE!!

To all you X48 owners out there who are all smug thinking their chipset is better than the P45, us P5Qers challenge YOU to beat us in our max. FSB contest! Up for it?

 

[CrAsHnBuRnXp]

Go check the P5Q thread CrAsHnBuRnXp, its uploaded

Will do!

 

[CrAsHnBuRnXp]

With new BIOS update courtesy of Ketxxx here is my CPU-z validation:

http://valid.x86-secret.com/show_oc.php?id=393251

 

[Fitseries3]

Just had a thought.. I think us P5Qers will like this one.

CHALLENGE!!

To all you X48 owners out there who are all smug thinking their chipset is better than the P45, us P5Qers challenge YOU to beat us in our max. FSB contest! Up for it?

count me in. i just beat myself. my P5Q3 dlx just KILLED my maximus's scores. no matter what ANYONE says... dual 16x slots dont do any better as of now with 2x3870x2's then the dual 8x slots on my p45 board. p45 ROCKS!

 

[Ketxxx]

With new BIOS update courtesy of Ketxxx here is my CPU-z validation:

http://valid.x86-secret.com/show_oc.php?id=393251

Looks pretty good. What is that? Something like 100MHz better CPU OC isnt it?

 

[CrAsHnBuRnXp]

Looks pretty good. What is that? Something like 100MHz better CPU OC isnt it?

Yeah...to bad it wasnt stable.

 

[Ketxxx]

Aw that sucks I know the feeling though I couldn't run 425 FSB fully stable so to keep most the bandwidth I had to fall all the way back to 340FSB with a mem frequency of 1088MHz

 

[CrAsHnBuRnXp]

I still cant get my ram above 9xx.

 

[Ketxxx]

Looks like your RAM just doesnt have anymore to give Your last hope would be spdtool to edit the timings in the modules spd data.

 

[CrAsHnBuRnXp]

Ive had this ram over 1000MHz before on my x38 and 780i. Hmmm......

 

[ENIAC]

Would like your thoughts on this one. Q9450 on a Pro with 438 FSB and vCore 1.275. I figured I was getting close when ExpressGate menu popped up. For grins, I went into ExpressGate and surfed for an hour or so. It was rock stable. I then tried to boot Vista 64 and it locked. So I nudged vCore up… crashed... and up… and up… finally at 1.33125 Vista was stable. Why such a vast difference between O/Ss?

 

[Ketxxx]

Vista puts a lot more demand on the system than EG. 1.33v isnt that much still.

 

[ENIAC]

Agree 1.33125 V is not horrible, but it would be nice to have the extra 56 mV headroom, not to mention ~3C lower load temps.

Sure Vista is a big bloated O/S versus Linux, but at the end of the day, both O/S kernals are using the very same H/W in the same way, right?

 

[Ketxxx]

A lot of factors are involved. Vista puts much more stress on the CPU than EG due to all the things going on in the background, the way voltage is regulated on the board (Vdroop), etc. At the end of the day 1.27v > 1.33v is nothing for absolute stability and only +3c load temps.

 

[ENIAC]

Thx for 1004 Ket. (Previously on 0506). I just pushed it up to 400 FSB 3.2GHz with a vCore of 1.168 V. On the previous BIOS it required 1.176 V, not hugh but trending in the right direction!


I'll take it up to 438 FSB when I get a chance.

One quick question, were there any changes to the BIOS which would have effected Tcase? Seems like my Tcase is indicating too low. Previously it was 5C under core temp, now its more like 15C.

 

[Deleted member 24505]

Heres a little push i did this morning,all i did really was set the vcore to 1.45v,the nb to 1.3 and the mem at 1:1.

later i am gonna try and see if the 6750 will do 4ghz in this board.

 

[Ketxxx]

@ ENIAC: Yes, Asus changed the temp. detect formula in the beta, so blame them for that. Unless its more accurate, in which case good job Asus

@ Tigger: 1.3v on your NB for 480FSB? you should be able to hit 500 with 1.2v.

 

[Deleted member 24505]

I will try lowering it to 1.2v then,i did the 500x6 with it on 1.3v.It needed 1.5625vcore for 4ghz before so i am quite pleased it seems ok at 3.8/1.45vcore,just a little test though,the weather is too warm to run it at this all the time now.

 

[Ketxxx]

Yup, thats one huge advantage with 45nm.. generates next to no heat realy as long as you dont go above 1.42v or so, with a 45nm that kind of voltage buys you some serious speed.

 

[Deleted member 24505]

It was at 1.2vnb I tried 500x8 with the vcore at 1.525v,no post,it just shows how right you are about getting a 45nm chip,i guess its gonna need more juice to reach 500x8 like it did before.I will give it a try tonight,i am pretty sure this board will do it,it is just my chip that needs high vcore for 4ghz.

 

[Ketxxx]

Makes you feel like your puter is steam powered if its not running 4GHz like all these younger whippersnappers doesnt it

 

[danszczerba]

Hi guys, i was wondering-with CPUZ, it says i have an E8400, 3,0GHz. BUT core speed is showing 1.973MHz-is there something I'm not understanding? Everset also says I have an E8400, 2000MHz-are these the idle speeds being measured? I have no idea-help me out please?

 

[sneekypeet]

Run something like super Pi with the CPU-z window open and see if the clocks raise while its running. If not you need to go into BIOS and set the CPU to run the way you want it to!

Most motherboards run something called speed step in the bios stock. This is my assumption of your issue!

 

[danszczerba]

Run something like super Pi with the CPU-z window open and see if the clocks raise while its running. If not you need to go into BIOS and set the CPU to run the way you want it to!

Most motherboards run something called speed step in the bios stock. This is my assumption of your issue!

ok, thanks-i will check on that after work.