Overclocking prescott 3.0e

[althes]

I am using a p4c800ed, crucial 2*256pc3200, vdimm mod to 3v
using a swiftech478v and vantec 80mm fan.

[althes]

No need to up volts.Running cool.

[althes]

230fsb still going strong.

[cpulloverclock]

:toast: but ur bandwidth is bad

[Shane5578]

prime stable at what speed

[althes]

I know bandwidth is bad, I will deal with that later by tightening up. But hey its crucial memory I am using that is very stable.

[retrospooty]

Thats funny... You OC the opposite of me. :D

I start at "ludicrous speed", and see where I can post, then I back down until I can boot to Windows, then I back down further until I can run stable 24/7. Its much quicker that way.

[althes]

WE all have our ways.:D

[althes]

keep on going

[J0k3r3]

wow better not to show us any benchies just the cpu-z screenshot :D

[althes]

Originally posted by J0k3r3
wow better not to show us any benchies just the cpu-z screenshot :D
Lol that is true.

[althes]

getting there

[Blind_GI]

Wow... and what are your temps while at 3.8GHz?

Also how stable is this?

[Liquid3D]

I'm really thinking of getting one, where did you buy it, and have you hit 4GHz yet?

[althes]

Bought at newegg, stable so far.

[althes]

Hav not hit 4ghz yet, working towards it.

[Soulburner]

To compare here's a 2.4c Northwood at 280x12 5:4 2-3-2-5

On 865PE, no PAT

3360mhz

I know its not at the same speed as his but it gives you an idea.

http://home.neb.rr.com/soulburner/280%20Arithmetic.jpg
http://home.neb.rr.com/soulburner/280%20Bandwidth.jpg
http://home.neb.rr.com/soulburner/280%20Multimedia.jpg

[Sidebinder]

Outch the NW definetly beat the Prescott in CPU arithmetic and it runs only 500mhz less. lol.

Great oc on AIR though althes

[althes]

Well at least we know that NW beats Prescott badly.

[althes]

the p4c800ed will not boot above 1.6v with a prescott.:rolleyes:

[althes]

Will continue tomorrow.

[althes]

last one

[Peen]

how do these fold in comparison to the northwoods?

[charlie]

that's nice....
3825 on air, 3D stable.

C

[Peen]

I kinda want one , but my IS7 is v1.0. Still thinking of just getting a 3.2c and throwing volts through it to get 4ghz if i get lucky lol

[JeffPH]

nice althes :)

[Rio71]

hehe, see the vga score. the card ist absolutely maxed out. :D
never seen this bevor.

[Liquid3D]

Well I found the 3.0E but I can't find the 3.2E, which I beleive may have a better chance at reaching 4GHz. But the Northwood beats Prescott in SiS Arithmatic benchies at same speed?

I don't get it? Is it the pipe-line length? One would think it would beat the NW in memory with an 1mb L2?

Am I correct in these presumptions?

[Peen]

the 1mb cache also has more latency :(

[althes]

good morning people, testing will commence shortly.
I will see how far the p4c800 can go then I wills switch to AI7

[Blind_GI]

althes what kind of temps are you getting at these clock speeds?

[Liquid3D]

Would you mind providing the full code info on your chip. They're sold out of the 3.0E's at Newegg, but I found a 3.2E for $330 ~ $340 at a few other shops. This sithe absolute critical period. As codes now will reveal the first/best overclocker's.

By the way I appreciate what your doing, whether you know it or not your providing a service for those of us in the E market.

I recently aquired an Abit AI7, and to be honest I'm dissipointed with the Guru technology. Al it is, is a basic version of ClockGen. Where the board does have some excellent potential, is for people like myself who don't want to do Vmods. With VDIMM to 3.20V you can't ask for more. I did however find running OCZ4400 at 280FSB on the P4C800Ed, and the AI7 resulted in a 340MB/s deficeit with the latter. The NB cooler is excellent though, and I actually like the 45-degree mounting angle of the socket as it's giving me some interesting cooling results with my DD RBX. I'll get into that in my "amateur" review. Here's ome AI7 bandwidth. You must flash to BIOS14 there's many fixes HOWEVER if you get the eraliest BIOS, it doesn't support Thermal Throttling, which can be a very good thing!

[althes]

Stepping SL79L Batch 3350A762.Made in Costa Rica
Thats the info you wanted Liquid.
I am running tests on AI7 now and updated to newest bios.
Results are coming soon.:D

[althes]

here we go

[althes]

230fsb

[althes]

Last test so far.

[Blind_GI]

Have you found ur max OC yet on each board, or are you just testing for stability now?

[althes]

On the P4c800ed the max was 257.Because of the vcore.I have to do the droop mod.
I have just started tesing the AI7.
I am at 240 currently running tests.

[skate2snow]

liquid3d: here is all the P4E you whant ;) www.ecost.com

[Jupiler]

How much volts does it need at 3.6Ghz?

[Schneider]

Originally posted by Jupiler
How much volts does it need at 3.6Ghz?
I beleive that he is usin default volts

[althes]

I have it stable at 250fsb

[althes]

sandra bench

[althes]

260fsb.

[althes]

oops results at 255fsb

[althes]

sandra benches

[Liquid3D]

Originally posted by skate2snow
liquid3d: here is all the P4E you whant ;) www.ecost.com

Thank you, however the place you suggested wants $465 for the 3.2E Retail, and Memory4less is only asking $350 for Retail 3.2E (not trying to shoot you donw or anything, just didn't want you to ovepay either) In fact I found several stores where the 3.2E can be had for under $340
http://www.memorylabs.net/inpe43ghz80f5.html

I can relate to what your going through Althes seems like many of the 3.0's seem to fart out at 250FSB. At 255FSB it's really pushing it, and 260FSB is just beyond reach. And beleive it or not upping the Vcore will have the opposite effect on overclocking unless in a very low temp environment. I beleive this is simply based on the same theory we as Overclocker's exploit.

In other words we know Intel takes the Prescott core and begins manufacturing chips. They bin by voltage and other parameters, pulling orders from bins as needed. Therefore those of us buying a 2.8E (for example) are acutally getting a core capable of 3.4GHz plus that processor's performance ceiling which would be another few hundred MHz as it's margin of safety, i.e. heat. Remeber the entire time were talking about operation on deafult Vcore. You'll notice however, Intel step's up the Voltage a tad-bit on the 3.0C or 3.0E from 1.525V to 1.550V. Yet the 2.4C is capable of spees as high as 3.6GHz on the lower Vcore, while the 3.0C cannot keep pace with it's liitle sister from 3000Mhz to 3600MHz. In part this must be the stress a multiplier places on the chip itself, as at 3600Mhz it'sa the memory, or FSB which "aquiring the burden of the work" if I can explain it thus? Someone please correct me, if I'm wrong as this is my hypothesis based upon experince and reading. The gist of what I'm saying is this; the higher the multiplier the higher the Vcore where two cores from the same architecture are placed side by side. Since Intel multi's are locked it's harder to emprically verify this theory, however my recent tesating of te DP-102 used the Soltek SL-75FRN2 and my JIUHB 1700 running on it's 10x multi. Because the multipler was set lower then it's deafult value when I set the Vcore to Auto in the BIOS, it reverted from the DUT3C's 1.6V to running at the speed of a DLT3CI was able to run the chip at 1.5Vcore. Very interesting considering I ran the CPU between 2004MHz and 2227MHz for the entire review.

[althes]

I hit 267fsb 4Ghz yippeee.
Not stable, but I got it.
i really need a psu that can hold the 12v line this vantec just cant do it. At 4ghz the 12v is 10.9-11.3:rolleyes:
The AI7 is a good board can handle the overclock.:D

[Liquid3D]

Good work my friend, good work!!!

:toast: :toast: :toast: :toast: :toast:


I lived in Jaco Costa Rica for about a year when I could surf, and I knew then Costa Rica had a lot to offer; waves and women! To that list they can now add Silicon....
"SL79L Batch 3350A762. Made in Costa Rica" thanks for that info.

That Abit AI7 isn't bad ole Bird is it? Here my 2.4C squeezed between an RBX I can hear it saying "help me, help me, I want to see 3.8GHz and beat my older brother" Funny thing is, it's saying this, but it sounds like it's under water? :eek:

http://www.ksbrainstorms.com/2004_0221Image0026.JPG

[althes]

very interesting post liquid, I agree with you.
I just have to get a 530w psu either a fortron or pcpwercoling.
If my 12v can sty stable I think I can push this further.:D

[-:[CC]:-]

Nice althes

P4E 3@4ghz

[eva2000]

nice althes, but post #26 says sandra benchies and you attached a 3d mark benchie ;)

good to here AI7 will work nicely ... you using 14bios or 16beta3 bios ?

[althes]

Originally posted by eva2000
nice althes, but post #26 says sandra benchies and you attached a 3d mark benchie ;)

good to here AI7 will work nicely ... you using 14bios or 16beta3 bios ?
Sorry got them mixed up it was 1am est so was very tired.
Using 14bios, will try 16beta3 sometime today.

[Blind_GI]

Good job althes, think you can grab a CPU-Z pic of 4GHz ?

[althes]

Will try.In the process of switching over to new case to get temps down and see if antec psu had hold 12v line.:D

[Liquid3D]

Originally posted by eva2000
nice althes, but post #26 says sandra benchies and you attached a 3d mark benchie ;)

good to here AI7 will work nicely ... you using 14bios or 16beta3 bios ? One thing I sure respect about eva2000 is that your ALWAYS up on things. Albeit drivers, mobo's steppings, BIOS, hardware/software, etc. your a VERY experienced PC-Enthusiast!

Where can I get the beta16 and what are the primary differences between it and 14? I also found it was interesting the very first BIOS release had a feature to "enable Clock throttling" doesn't that infer it was disabled prior to? And wouldn't that be a good thing for overclocking, if just that potion of the BIOS could be transposed to later versions?

EDIT: by the by, the 14BIOS states it fixes secondary software's ability to read thermistors and/or diodes correctly, however it doens't seemed to ahve worked?

[althes]

http://fae.abit.com.tw/download/beta/ai7/

Link for beta bios

[Schneider]

You can disable the Abit splash screen when u boot :)

[eva2000]

Originally posted by Liquid3D
One thing I sure respect about eva2000 is that your ALWAYS up on things. Albeit drivers, mobo's steppings, BIOS, hardware/software, etc. your a VERY experienced PC-Enthusiast!

Where can I get the beta16 and what are the primary differences between it and 14? I also found it was interesting the very first BIOS release had a feature to "enable Clock throttling" doesn't that infer it was disabled prior to? And wouldn't that be a good thing for overclocking, if just that potion of the BIOS could be transposed to later versions?

EDIT: by the by, the 14BIOS states it fixes secondary software's ability to read thermistors and/or diodes correctly, however it doens't seemed to ahve worked? hehe not that knowledgeable but hey there's a few threads at abit-usa on the 16 beta 3 bios and also a modded 16 beta bios for latest SATA bios for the AI7

sort of put of benching for a few days as Brissy heatwave hit 41C and sees my room temp hitting 38+ C :eek:

[althes]

Wish it was that here in boston:D

[althes]

The prescott eats as5 for breakfast.I put some on and it just evaporated.:D

[JCviggen]

has anyone had a Prescott on a P4C800 ? Im having major issues with this thing :(

[althes]

Originally posted by JCviggen
has anyone had a Prescott on a P4C800 ? Im having major issues with this thing :(
I had it in the p4c800ed. It did 3.9Ghz@1.6v, wouldnt go any further because prescott wont boot above 1.6v on p4c800ed.

[althes]

Eva2000 did you notice that a prescott in the A17 with the 14bios the highest vcore is 1.76, no higher vcore.

[JCviggen]

Originally posted by althes
I had it in the p4c800ed. It did 3.9Ghz@1.6v, wouldnt go any further because prescott wont boot above 1.6v on p4c800ed.


You didnt have any issues with it shutting down?

This one here shuts down when I press exit in the BIOS at 4 GHz. It also shuts down if i try to open CPU-z of ClockGen. 3Dmark and other benches run fine however

wondering if its an issue with this particular P4C board or not. Even at stock speed the thing reboots if i try to open clockgen or CPU-z

[althes]

Originally posted by JCviggen
You didnt have any issues with it shutting down?

This one here shuts down when I press exit in the BIOS at 4 GHz. It also shuts down if i try to open CPU-z of ClockGen. 3Dmark and other benches run fine however

wondering if its an issue with this particular P4C board or not. Even at stock speed the thing reboots if i try to open clockgen or CPU-z
Never had an issue, it worked properly.
I have been hearing of prescott not running on some p4c800 or looking at the cpu wrong.
I think its a board thing.

[eva2000]

Originally posted by althes
Eva2000 did you notice that a prescott in the A17 with the 14bios the highest vcore is 1.76, no higher vcore. don't have a prescott to play with :o

is that 1.76v real vcore ?

[althes]

no 1.64

[Liquid3D]

Originally posted by JCviggen
has anyone had a Prescott on a P4C800 ? Im having major issues with this thing :(

Here's the greatest problem albeit temporary. Motherboard's such as 865/875 P4P800, have inadequate current capabilities for the Prescott's made (adpated, really) for them. While prima facie this may seem incongruous due to the Prescott's 1.4Vre, we all know this number is irrelevant to wattage used during operation. Capacitors, resistors, mosfett's and voltage regulators were designed for Northwood Vre requirements. While your board might even claim to be "Prescott ready" beyond a simple ad hoc BIOS solution, it's simply unfeasable for boardmaker's to build parallel power circuitry into these boards. They would have to build one for Prescott, and one for Northwood on the same PCB. Sure they could, but it be a $300 freak of nature.

These are links to specific pages in articles discussing Prescott/mobo power imcompatabilities. The first article is quite disheartening; [H] (http://hardocp.com/article.html?art=NTg5), FiringSquad (http://www.firingsquad.com/hardware/intel_prescott_3.2ghz_review/page3.asp[/url), Overclockers (http://www.overclockers.com/articles811/), and finally this Overclockers (http://www.overclockers.com/articles935/) article on power.

I was ready to buy a 3.2E and now I'm so confused i don't know what to do? While I thought the Abit AI7 was speciafally Prescott ready, it seems some people are having problems. What's most likely to occur, is you won't reap the processor's true benefits, and your taxing the board to failure, perhaps in just a month.

In conckusion (I should have made this an article) the good news, is Prescott, is made for 4GHz plus overclocking! That's where it beats everythng out there!

[JCviggen]

Well at 3.20 it runs pretty much ok, at 4.0 default volts I get shutdowns

However i can run 3Dmark much higher than 4.0 and with raised voltage and it will not shutdown. Sciencemark however does shut it down

[Liquid3D]

May I ask your code info please, and what model your using? 3.20E or 3.0E? I've also read applications clock-cycle intensive such as Science Mark, Seti, Pifast would have problems on this chip with it's current platform, however it will do well at 3D- rendering. What suprises me is raising the Vcore has yeilded positive results.

[JCviggen]

3.20E ES

[Liquid3D]

I meant could you post the entire Code/Batch numbers please

[JCviggen]

Well that would be a whole lot of work to dismount the evaporator and stuff, its an ES and its a stepping 3 obviously, I dont see what the date of production would matter...

It runs pretty hot but i was prepared for worse

[Liquid3D]

Well I'm trying to establish a pattern, I've found Costa Rica is proiducing better overclocking silicon then Malaysia, but i need more numbers to verify this.It's alos important to me just like getting an MO is important to those looking to buy a Northwood-D. But I totally understand, and wouldn't expect you to dismount an evap for me, and waste the seal-string. I forgot your pahse-changing. Temps are hyperciritcal with this chip, and I'm sure glad I have great H20, until (or if) I get my Prmmie's fixed hehe.

EDIT: Doh sorry I completely spaced Engineering Sample, yes that would be pointless. Sorry hehe

I think I'm going to get one, but I'm reminded of when I'd got the first revision TBred 2400. I thought "Wow I finally have the fastest production chip!" and the dam thing wouldn't OC to 2200MHz. The three months later I get a $60 JIUHB 1700 that'll do 2500MHz hehe. Must be nice to have those multies available! Man you can really play around with that cache. It's supposed to run at less then half the latency of the Northwood, BUT when ramped up to 4GHz + it's going to walk on water!

[JCviggen]

well Ill take a look at it still when i do unmount it :)

[Liquid3D]

Lemmie know if you wanna trade that baby! :D

[perfekt!57]

Hi folks,

just bought an enginnering sample of the p4 3,0e. multi 14x and 15x avaliable, mobo here is an asus p4p800, still bios 1014.

2x256mb twinmos cl 2,5 ddr400, capable of 2,0/2/2/5 @220mhz @2,9 volts.

powersupply is an 550 watt 3,3V 32A, 5V 40A, 12V 24A

I would like to start with an zalmann air-cooler in the first place, with the pc outside my window at appr. -2°C. boxed cooler also avaliable.

I would be happy to reach stable 275x14 = 3850mhz in the first time.

At present the board is making 282x12 = 3384 with 2,4c, sl6wf. (275 primestable with boxed cooler)

comments and/or help?

[althes]

Originally posted by JCviggen
Well at 3.20 it runs pretty much ok, at 4.0 default volts I get shutdowns

However i can run 3Dmark much higher than 4.0 and with raised voltage and it will not shutdown. Sciencemark however does shut it down
Thats a nice chip.
I will try to run soem benchies at 4Ghz see what happens, look for it tomorrow. I have to mod a case put in more case fans, to help cool down the pwm temps. It hit 80c last nite even though I have 3 case fans. This new case has 6 fans in it. I may even have to put some heatsinks on those mosfetts. They are getting too hot for my liking.:D

[althes]

Originally posted by perfekt!57
Hi folks,

just bought an enginnering sample of the p4 3,0e. multi 14x and 15x avaliable, mobo here is an asus p4p800, still bios 1014.

2x256mb twinmos cl 2,5 ddr400, capable of 2,0/2/2/5 @220mhz @2,9 volts.

powersupply is an 550 watt 3,3V 32A, 5V 40A, 12V 24A

I would like to start with an zalmann air-cooler in the first place, with the pc outside my window at appr. -2°C. boxed cooler also avaliable.

I would be happy to reach stable 275x14 = 3850mhz in the first time.

At present the board is making 282x12 = 3384 with 2,4c, sl6wf. (275 primestable with boxed cooler)

comments and/or help?
Firstly that board will get hot.
The prescott will eat the zalman for breakfast.
You need a better cooler, or go water.
You will not be able to boot over 1.6v, that happened to me on the P4c800ed.
Just take it easy, go up a few fsb at a time, thats how I have been doing it.
Remember the Prescott will take alot of volts but you must be able to cool it properly.It will reboot in a sec if that 12v line cant handle the stress.

[althes]

Originally posted by JCviggen
Well that would be a whole lot of work to dismount the evaporator and stuff, its an ES and its a stepping 3 obviously, I dont see what the date of production would matter...

It runs pretty hot but i was prepared for worse
What are your temps in the prommie, dont tell me above 0c.
Do you like benchies using the p4c800ed.:D

[JCviggen]

Originally posted by althes
What are your temps in the prommie, dont tell me above 0c.
Do you like benchies using the p4c800ed.:D

Around -20C when I'm in the BIOS...not sure about under load i dont have MBM installed.
3D2001 runs quite well on it but the P4C800 is giving me so many issues i cant say i have actually benched it very well yet

[perfekt!57]

"I may even have to put some heatsinks on those mosfets."

i have already done this to my p4p800 last night (for the prescott to come)

what watercooling would you recommend?

by the way, is there presumably a real perfomance differenz between a prescott engineering sample and an ordinary prescott 2,8e from a shop today?

....i've just learned from computerbase.de-editors that multi 14 and 15 would be avaliable as well on any 170-euro-2,8e-prescotts from the shop's today. true or false?

and what bios would you recommend? any identifying the prescott, or something special?

[althes]

Originally posted by perfekt!57
"I may even have to put some heatsinks on those mosfets."

i have already done this to my p4p800 last night (for the prescott to come)

what watercooling would you recommend?

by the way, is there presumably a real perfomance differenz between a prescott engineering sample and an ordinary prescott 2,8e from a shop today?

....i've just learned from computerbase.de-editors that multi 14 and 15 would be avaliable as well on any 170-euro-2,8e-prescotts from the shop's today. true or false?

and what bios would you recommend? any identifying the prescott, or something special?
Any current bios would work.
Non es prescott cpus are locked just 15 multiplier.
Regular H20 should work
The colder the better.

[QuadDamage]

JC,

got any other mobo? post your results omce you get it up and running.

[althes]

I wonder if anyone has tried this with a max3:D

[JCviggen]

Originally posted by QuadDamage
JC,

got any other mobo? post your results omce you get it up and running.



nope, has to be the P4C :(

[althes]

I have a 2.8e i will be trying in the p4c800 shortly.

[Liquid3D]

Originally posted by perfekt!57
...what watercooling would you recommend?...and what bios would you recommend? any identifying the prescott, or something special?
First I want to answer your water-coooling question. Recently I had the pleasure of meeting the owner of there in Germany. I can tell you right now I was drawn to this place since reading a review on the block pictured below CFI microstructure cooler (http://www.watercooling.de/catalog/product_info.php?cPath=1_17_40&products_id=433) I believe this cooler is one of the most interesting I've come across, and would seem to have some serious potential. It's built by the store, who sell it. Here's a direct link to one of they're kits, featuring the CF1 (if you can afford 249) it's called the Professional-L kit (http://www.watercooling.de/catalog/product_info.php?cPath=1_6_60&products_id=462). Here's a link to Watercooling.de "sets" (http://www.watercooling.de/catalog/default.php?cPath=1_6) page. I'll be testing the CF-1 microstructure block in a few weeks. Your very fortunate. This company doesn't ship to the USA.

They also make the only CPU-block I know off using 925-Sterling silver. It's called the CC-Magic cooler (http://www.watercooling.de/catalog/product_info.php?cPath=1_17_40&products_id=203), and I wish i could get one of these as well.

Second issue. There are NO motherboards which currently have the physical poiwer circuitry required for the Prescott. While some have made slight adaptations, and some have simply released BIOS versions (which only drop the Vre to 1.4V) many boards are not only going to run hot, but in fact fail. It's definately NOT recommended to raise the Vcore. I'd stay safely within the limits of the default values. Not so much because you'll damage your chip (which you probably will) but because you will damage your mobo. Even though it might seem hopeless, there's no way Intel, and mobo makers are going to give up. There will be some boards specifically hardwired to handle Prescott current, and Northwood as well. To date I don't know of any that can truly make this claim. When they say Prescoitt ready, this is not the same as Prescott designed. But you shouldn't give up, toss away your 478 Prescott, and wait for 775 Line Grid Array, Adlerwood or Granstdale. Things will improve. Intel, and mobo makers don't want to be replacing thousands of boards/chips, because they claimed to be Prescott ready. Once again I would deter anyone from pushing that Vcore, until the circuitry is explored thoroughly...

http://www.watercooling.de/catalog/images/wakue29.jpg

[perfekt!57]

great! thx for the links: i studied them all carefully.

tend to build my own wc. eheim 1048, moto-bike (bmw) -radiator. and your watercooler from watercooling.de as recommended.

and i just found a used asetek-vapochil-premium around here for sale.

so the asetek would be my best choice i presume. just doing it right directly. see: i'm suspicious with myself a little bit, that i will not stay with the wc for very long, because it will leave me unexperienced with this asetec stuff.

again your comments on what to look after, when buying a used vapochil? and the diff to wc according to your experience?

many thx. and believe me. i'm not the one just to ask questions: i'll be back soon, to share my experience, if thats welcomed...

p.



and the thermaltake volcano12extreme is not to bad a cooler, minimum as far as pure cooling performance is concerned. my experience with 770 gramms of shear copper: i have had my fsb 200-barton 3000+ AQXEA0331XPMW running 225,4x12=2704 mhz with 2,1 volts at -2°c ambient, that making around 22°C cpu under prime 95, several times for more than 5 minutes each, totally stable running: that's 4400+, correct? correct... 39 sek of superpi. and not too bad for just air-cooling in front of the house, window resp..

it is a lousy noise maker on the other hand running that 5.500/min through a cold winter night here in the eifel. all the village nows me oc'ing dat night. 1950/min is ok.:cool:

[althes]

Newegg has raised prices on all the prescotts.:D

[althes]

Just got my fortron530w

[althes]

The AI7 just cant push the chip any further.Switching to p4c800ed:D

[Schneider]

Did you get it stable @ 4Ghz?

[Soulburner]

Originally posted by althes
The AI7 just cant push the chip any further.Switching to p4c800ed:D
Correct me if i'm wrong but....

I thought you originally were on the P4C, and switched to the AI7 and got higher?

[skate2snow]

I think he whant to test the P4C800 w/ the 530W fortron

[althes]

TEsting the fortron on p4c800ed now.This psu is solid.
Using slk947U and 92mm tornado.temps dropped like 10c.

[althes]

Has anyone tried the prescott in a epox board.

[althes]

The AI7 and p4c800ed seems to top out at 1.64 and 1.6v respectively on prescott, will get the epox board on tuesday afternoon and give ti a go look for some results tuesday afternoon.:D

[wolfgang]

Originally posted by althes
What are your temps in the prommie, dont tell me above 0c.
Do you like benchies using the p4c800ed.:D

I got one in a prommy on the max3. Under full load temp 2 is cpu. The display says -22 this is good contact for me. same oc on a C chip with more volts was -29 on the prommy and -4 under full load.

[althes]

thats nice wish i had a prommy.
SO the max3 is ok. Does the max3 stop at a certain voltage or can you select right up to 1.925, does it vary.

[Soulburner]

It doesn't matter, you don't need that much anyway for any "E" processor.

[althes]

That could be true, but the one I have likes running at 3.9 at 1.64.
I can get it stable at bout 1.7.But my Ai7 and p4c dont give me that voltage.I am running on air thats why.

[Kosmic]

Nice overclocks. Didn't think prescott would go so high right away with all that heat. One question: why the 440mx vid card and not something a little more robust? I was baffled at your 3d mark scores until I took a close look at your sig (it's pretty late here)...

[perfekt!57]

-ai7 ordered two days ago. hope to have it here until tuesday.

-p4p800 still not running. think i crashed that board.

-so no results up to now. my prescott still a virgin cpu.

althes, u confused me: what is the best board right now?

best wishes from bitburg germany. driving to luxembourg this afternoon, little bit of shopping and sightseeing. weather is wonderfull here today,

so

p.


(it is noon here, half past 12)

[althes]

yes that board will work nicely.:D

[althes]

picked up an epox results tomorrow.:D

[Kosmic]

lol...how many P4 motherboards do you have now?


Originally posted by althes
picked up an epox results tomorrow.:D

[althes]

Originally posted by Kosmic
lol...how many P4 motherboards do you have now?
4

[perfekt!57]

which epox? this one?

http://www.geizhals.at/deutschland/a53940.html

and have you figured out any diff. between an 3 phase or 4 phase psu up to now? does it real make a diif, matter?

where come the limitations from: still the system, e.g. max fsb, psu, or is it the cpu now?

p.


(german side planet3d opened (and destroyed) an 2,8e and found that the core is "bonded" or "soldered" to the "cap". comments on that? probably better or worse than northwood oc? should be better.)

[althes]

Just tried an 4pca3+ rev2.2 it sux. Cant even hold a reset.All I get is FF or 26.In order to get it working again I have to remove cpu.
On to the Max 3.

[eva2000]

4pca3+ rev2.2 has some issues.. better off with rev 1.1 or 1.2 or 2.0 heh

[althes]

Yea the rev1.2 can hold this cpu and 3.9 solid.I iwsh I could get my hands on a 2.0.:D

[Maxprime]

Nice clocks on air.

[perfekt!57]

- recieved ai7 rev 1.0 today.
- installed.
- 2.8e, artic silver3 and boxed cooler (looks good the boxed)
- winxp from the asus board before excepted (!).
- bios update to ai716 helped a lot.
- psu 400 watt has a lot to do. change to 550 watt tommorow.

first test:

- 3500 gig, 250x14, ram 5:4 200mhz , 1,53 volts perfect game-stable. but prime95 just a minute.
- 3600 boots fine but its the limit for the moment.


-at 2800 mhz superpi is a lame 52 sek.
-at 3500 mhz a nice 40 seconds.

ram 2,0/3/3/7 at 200mhz, game acc. "street racer"

pcmark02:

cpu: 7298 (not realy good)
mem: 11370 (nice)

...still room for some improvements.

at 3500mhz the prescott is appr. as quick as the 2.4c at 3.35 gig. one test a little better, the other worse.

recommendations? what next u think?


p.

[charlie]

ic7 family is the best for Prescotts IMO

C

[althes]

Originally posted by charlie
ic7 family is the best for Prescotts IMO

C
I will have max3 to test tomorrow.

[althes]

Originally posted by charlie
ic7 family is the best for Prescotts IMO

C
can we some screenshots of stable overclocks with max3

[charlie]

I don't have a MAX3, but the IC7 and "G" with the new 22 BIOS work real well.

[althes]

Thanx charlie, will be getting mt max3 this evening.:D

[althes]

here is the max3

[eva2000]

nice stuff 74C.. guess you needed to turn off the cpu temp alarm :)

[althes]

I moved it up to 85C. These fortron 530w psu kick ass,
3.36
5.56
12.95
They are great.
Updated bios all seems nice will go for a stable 4ghz tomorrow.

[perfekt!57]

forgotten to post some results with the 2.8E:


*Intel Prescott 2,8@3,8 auf Abit AI7, latest bios,

* 272,2 x 14 = 3810mhz @1,665 volt, boxed kühler @ +2°C

* RAM 2,0/2/2/5 @217,7mhz @ 3,0 volt, TwinMos DDR400 CL 2,5

* Albatron 5900XT; OC @482/820mhz @1,65 volt @fw 56.56

* PSU 550 Watt, Case open at ambient +2°C.



-Super Pi 1M = 37 sek

-Aida

read 6.450 MB/s
write 2.304 MB/s


-PCMark02

CPU 7738 Punkte
Mem 13.056 (!) Punkte


-Aquamark:

GFX.....6.928
CPU...11.718
Score 53.482

average fraps= 52,3

p.

[saaya]

but northwoods oc the same, cost less and run cooler dont they?

[charlie]

Saaya,
Not quite :D My 3.0E went 4609, I've never heard of a 3.0C doing that...

C

[perfekt!57]

but northwoods oc the same, cost less and run cooler dont they?

it depends. at around 3,5gig both nw and precott seem to be equivalent in speed, above that the prescott ist measured quicker.

the lower pcmark02 cpu-values are very liklely becaue the test was not made for precotts specifics abilitys.

i bought this cpu just for fun. because i liked the testing. there is no good reason other than that, buying this cpu.

this will change soon i presume, with improved steppings und higher multipliers soon to come. hope to boost my system up to 280x16 in may or june. (march is already over... almost)

p.


here in germany 3.0e and 3.2e or not avaliable yet. 4609=15x307,3mhz. nice fsb. standard springdale nb-cooling (maybe) ? vcore mod?

i like that. a link to a report about that, or the system?

[saaya]

well in 3dmark a prescott is still slower than a northwood if both are clocked to 4ghz+ according to macci iirc (intel section 2.4e ocing)

yeah but charlie, that was with dry ice... with air and phase change nortwoods and prescotts oc about the same, cost less and consume almost 50% less energy! the prescott has a very very very high power leakge... the d0 stepping is supposed to adddress exactly that, so it sounds promising.

if its just for fun i would get a 2.4e wich is extremely cheap and ocs about the same as the 2.8e and 3.0e from what i have seen, but the 2.9x and 3.0e just cost too much for a fun adventure... well im a poor student, so the same does not apply to you guys :D

[Soulburner]

Originally posted by perfekt!57
-Aquamark:

GFX.....6.928
CPU...11.718
Score 53.482

average fraps= 52,3

p.
With my 2.4c @ 3.3 I get this:

5900 @ 490/900

AquaMark Score: 52463 (CPU: 10827, GFX: 6924)

Same GFX score...but lower CPU score.

If you do some math:
11718 / 3800 = 3.083

3.083 x 3316 = 10,223 CPU score at 3316mhz on Prescott

10827 / 3316 = 3.265

3.265 x 3800 = 12,407 CPU score at 3800mhz on Northwood

Northwood is faster...though this is all theoretical (but should be at least somewhat accurate).

[althes]

northwood is better, but the prescotts have the potential.:D

[Soulburner]

They definetely do, just seems a little "held back" with current hardware.

It is slower per clock though and there is no denying that. I know for a fact that Intel wants it on Alderwood, which is a faster chipset, to hide this. But their problem with that is the DDR2 memory which also seems to be a tad bit slower per clock so it may all equal out....personally I don't like the roadmap but we will have to see.

[perfekt!57]

and i think, i have not posted the measurements to impress but to share the experience. well

i'am not a student (anymore), but a father of three. so... no changes at all (responsible for a family bunch of pc's (5-6) even more "exhausting".*g*)

so your damn right.

what can we say? i reinstalled my 2,4c (just a 282x12 cpu, as you recommended) last friday and gave the 2,8e to an oc-friend.

maybe finding a 3,2e from the us.

:banana:

and dont stop telling me!