PJ's Prescott: 2.8E on the DFI LanParty 875B

[jpetermann]

Ok all, here goes. Just installed the chip.

Idleing at 34*c right now. Now, you need to know I always keep my house cool. And my side panal is off for now. Mother board temp is at 25*c. This board reads right about the same as my Asus, which i will install in the near future to test the chip as well. This is about 10*c warmer than my 2.4C at this temp in the house.

Vcore reads out as 1.36 in mbm5 at default.

I am cooling with my Zalman 7000A Al-Cu. I have a Thermalrigth sp-94 on the way (monday).

Will post things as they come. First will come a quick overclocking at stock, just to see what it does.

PJ

 

[Technonut]

Good luck PJ... OT, but how do you like the DFI? I hear it is a decent mobo. Is it as responsive as the IC7?

 

[jpetermann]

Originally posted by: Technonut
Good luck PJ... OT, but how do you like the DFI? I hear it is a decent mobo. Is it as responsive as the IC7?

I gave up the IC7 a long time ago. I found the Asus p4c800E to be the best I have worked with as far as Canterwood goes. The DFI is nice, but it is not as good as the Asus YET. There are some things they could do yet, especially in the area of overclocking.

 

[jpetermann]

Ok all, here is what I am going to do to get someoverclocking results, since that is what most are interested in. I am just going to run an instance of the 1mb test in SuperPI. I am in no way claiming that the chip will be stable at those speeds by just running Super PI, but I find it will crash pretty good. I will do stability testing later on.

 

[Duvie]

Well that 34c idle is a nice start......If the reports are right it appears the swing on these things from idel to load is a touch less then the northwoods.....

Also like you mentioned in another thread and I mentioned as well with my case if we can keep it a default vcore you could get to 3.7ghz with little change in temp....Once the vcore starts going up we will see the real temperature increases....


at 34c and that cooling I bet you load right near 50c or less.....

 

[Duvie]

Originally posted by: pastorjay
Ok all, here is what I am going to do to get someoverclocking results, since that is what most are interested in. I am just going to run an instance of the 1mb test in SuperPI. I am in no way claiming that the chip will be stable at those speeds by just running Super PI, but I find it will crash pretty good. I will do stability testing later on.

I have no problem as I agree the superpi program is quite nice...However I would think maybe something a bit longer so we can see the temps rise...Also superpi only uses 50% of a cpu with HT enabled so we will not be seeing full heat and stress....

 

[jpetermann]

Originally posted by: Duvie

Originally posted by: pastorjay
Ok all, here is what I am going to do to get someoverclocking results, since that is what most are interested in. I am just going to run an instance of the 1mb test in SuperPI. I am in no way claiming that the chip will be stable at those speeds by just running Super PI, but I find it will crash pretty good. I will do stability testing later on.

I have no problem as I agree the superpi program is quite nice...However I would think maybe something a bit longer so we can see the temps rise...Also superpi only uses 50% of a cpu with HT enabled so we will not be seeing full heat and stress....

Got ya... not thinking HT at the moment. I will find something else. Hmmm...

 

[jpetermann]

250fsb


I had already run this one... the heat jumped pretty quickly.... went to 49*c by the end of the 38 second test. WOW!

 

[Duvie]

Originally posted by: pastorjay
250fsb


I had already run this one... the heat jumped pretty quickly.... went to 49*c by the end of the 38 second test. WOW!

Yikes.....I imagine it could have gone 5-6c higher and with HT or dual prime95 7-8c higher.....


What will be your limit PJ....mid 60's under load???

 

[jpetermann]

ran the two minute test and it only went up by 1*c to 50*. I know it still is not stressing the CPU due to the HT, but I wanted to see how much higher it would go there.

 

[Duvie]

Originally posted by: pastorjay
ran the two minute test and it only went up by 1*c to 50*. I know it still is not stressing the CPU due to the HT, but I wanted to see how much higher it would go there.

That is a bit more encouraging...may change my above assumptions 1-2c.....That 3.5ghz is still lower then my temps at load.....

 

[jpetermann]

Just a quickie...

275 - no go
270 - no go
265 - no go
260 - typing now...I may switch out my board, as I am more comfortable with my Asus (and I know what she does... could be around the limit of the chip, maybe, but I am not too fond of this DFI for overclocking anything. So, to the Asus!

 

[JustStarting]

Boy.... am I glad I didn't sell my WC setup. Seems like the Prescott may make good use of it.

Coming from AMD recently, my Abit NF7-S temps caused me to purchase my WC gear- I was 55C+ (MBM) loaded on it w/ air.

Duvie- what temps are you getting on air loaded w/ your IC7?? I'm currently reading 40C loaded (Abit EQ) running Seti. It jumps to 42C running p95. If I could keep a nicely clocked 3.0 Prescott under 50C loaded, I think I'd be looking OK.

Crank it up PJ!!

 

[jpetermann]

Duvie... mid 60's will be it for me... nothing over at all. I may even wait until I get the sp94 to do any vcore overvolting.

 

[Duvie]

Juststarting...YHPM

What is Abit (EQ)????

 

[THUGSROOK]

go PJ go!

dont forget things get alot hotter once you fire up that vid card, and even hotter if you OC the vid card.
wed also like to know how well prescott benchmarks compare to northwood ~ clock for clock.

gluck buddy!

 

[JustStarting]

Originally posted by: Duvie
Juststarting...YHPM

What is Abit (EQ)????

Duvie- look at my first two pics here. That is the Abit EQ utility. I think you can download it from Abit's site, although it was on my retail driver CD.

 

[bjc112]

Originally posted by: pastorjay

Originally posted by: Technonut
Good luck PJ... OT, but how do you like the DFI? I hear it is a decent mobo. Is it as responsive as the IC7?

I gave up the IC7 a long time ago. I found the Asus p4c800E to be the best I have worked with as far as Canterwood goes. The DFI is nice, but it is not as good as the Asus YET. There are some things they could do yet, especially in the area of overclocking.

Why did you give up on the IC7? I have had to consecutive overclocks at about 3.3ghz

 

[jpetermann]

Oh, I liked the IC7, just not as much as my Asus...

By the way all... almost ready to fire her up on the Asus... give me 5 or so!

PJ

 

[Nebor]

BTW, there's no difference in running 1 instance of prime95 and running 2. I had someone explain it to me in depth, but basically, when running prime95, even though your performance monitor is only showing 50% in use, it's actually using all your processor power. My temps never change betwee one and two instances of prime95, so I'm inclined to agree.

 

[JustStarting]

Originally posted by: pastorjay
By the way all... almost ready to fire her up on the Asus... give me 5 or so!

PJ

It's been more than 5.... you catch it on fire??

 

[lookin4dlz]

lol, waiting here as well...

 

[THUGSROOK]

hehe~
give him a chance guys
live threads aint easy.

you know he'll be posting asafp if he has anything good to show us.

 

[jpetermann]

Well, I laughed when I first read the catch on fire thing. But... something is wrong. I was working with the rig and making a few changes after swapping boards, and all of a sudden my screen went blank and I smelled something bad... trying to figure it out now. It is not the 9800 pro, though I though it was at first...

 

[THUGSROOK]

ok, thats not good

check all the molex connectors for damage....