P4 EE Engineering Sample multiplier changing [Archive]

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TribesMan

11-26-2004, 04:43 PM

Xerxes

11-26-2004, 04:53 PM

most es have the multi unlocked just not all (though from the intel employees ive talked to it seems nearly all are unlocked at least somewhat). I dont know if the intel boards allow for changing the multi but it should be in the same section as the fsb if it does. I know other vendors boards can change the multi (and so did some older intel boards) so it may be just intel being annoying or possibly it needs a bios revision.

edit:
Well if its anything like anands cpu it only allows 12/13 multi adjustments (they used the same motherboard)

Kunaak

11-26-2004, 05:21 PM

intel boards generally are bare of overclocking features.

it doesn't seem likely that they would allot multiplier changes in thier boards...

Xassius

11-26-2004, 08:35 PM

I'm testing this bad monster:

http://www2.arnes.si/~mbabic/P4_3-46_EE_ES.JPG

And I wonder how to change CPU multiplier... I know that it was possible to change multipliers on those engineering sample chips, is that still possible?

I'am testing on Intel D925XECV2 motherboard. Could there be a problem with multi changing on this board, beacuse I can't find any settings in BIOS. Friend of mine who tested ES chips before told me that you have to clear CMOS to put motherboard in multi configuration mode... I tried that... but no go.

Any ideas?

Thanks

From what I remember from 3 days ago testing the same chip/motherboard :D ...there is a jumper where you have to switch....then boot up (without putting the jumper back to default) and THEN you can change the multiplier...and after you change it...you shut down again and put the jumper back to its default position....and reboot

Xassius

11-26-2004, 08:36 PM

intel boards generally are bare of overclocking features.

it doesn't seem likely that they would allot multiplier changes in thier boards...

why wouldn't they? I just don't understand your point of view... :(

Aphex_Tom_9

11-26-2004, 08:50 PM

oooh, how'd you get ahold of that sucker?

Mitz

11-26-2004, 08:52 PM

And I wonder how to change CPU multiplier... I know that it was possible to change multipliers on those engineering sample chips, is that still possible?
yes it still possible. i have P4 560 3.6 GHz ES and p4 3.4 GHz EE, they all can change multipliers.

i don't know about intel board, but i had tested change multiplier from BIOS with ASUS and ABIT 915/925 board.

TribesMan

11-27-2004, 12:54 AM

Thanks Xassius for the tip. It works, but there are only two options for changing the multi. 12x and 13x... so no overclocking via the multis...

So I have a problem... overclocking the FSB goes only +10% in intel "burn-in" mode, but it is very unstable... i think that my memory (PQI DDR2 533 5.0-4-4-12!!!) is pulling me back. Just changing timings to 4.0-4-4-10 makes system totaly unstable and very slow...

oooh, how'd you get ahold of that sucker?

Hmmm intel sent it to me... :D Both the mobo and CPU in big brown box...
There is a sticker on the box wich says "PRODUCT CODE: KIT1066LAUNCH"

But it is not so impressive as it seems... in non overclocked mode it is slower that S754 A64 2500MHz... it only wins in divx compression. Oh and by the way... this is one HOT CPU...

Xassius

11-27-2004, 04:59 AM

Thanks Xassius for the tip. It works, but there are only two options for changing the multi. 12x and 13x... so no overclocking via the multis...

So I have a problem... overclocking the FSB goes only +10% in intel "burn-in" mode, but it is very unstable... i think that my memory (PQI DDR2 533 5.0-4-4-12!!!) is pulling me back. Just changing timings to 4.0-4-4-10 makes system totaly unstable and very slow...

Hmmm intel sent it to me... :D Both the mobo and CPU in big brown box...
There is a sticker on the box wich says "PRODUCT CODE: KIT1066LAUNCH"

But it is not so impressive as it seems... in non overclocked mode it is slower that S754 A64 2500MHz... it only wins in divx compression. Oh and by the way... this is one HOT CPU...

I have already packed the kit up ready to send back to intel....but with the i925/915 launch kit, the intel mobo was able to FORCE a minimum of 8x multiplier on the 730 (3.4Ghz EE) cpu although it is only officially 12-17x supported.

So try entering something like 11 into the box and press enter...and see if it works, or likewise with 14.

TribesMan

11-27-2004, 08:20 AM

I tried everything from 8 to 17... only 12 and 13 works... Even CPU-Z reads "13x (12x-13x)"

So no luck for me :(

But I managed to run it at 3740MHz... not much of an improvement, but it is "quite fast" :D

jjcom

11-27-2004, 09:34 AM

Try out another mother board. ASUS seems to be good with these Intel multi changing stuff...

jjcom

TribesMan

11-27-2004, 09:57 AM

Another motherboard is not an option... This intels sample board is at the moment only motherboard based on 925XE chipset in whole Slovenia :D So no go...

I have another question...

Sandra memory benchmark gave me very low results... 5340MB/s... that is 63% eficiency. Very low. I checked memory speed with CPU-Z And it says that FSB:RAM ratio is 3:4 and memory frequency 355MHz... Is this a bug in CPU-Z or is this stupid board running memory at PC700 :D

jjcom

11-27-2004, 11:19 AM

Look around in the BIOS. Make the RAM run @ 266mhz. try that. CPU-Z probly is not reporting an error tho. Your DDR2 RAM is doing DDR2 710 right now. Try and keep it lower first. Run the RAM at its SPD first then mess around with the timings. If your overclock was unstable, this could be because the cause, your RAM running @ DDR2 763. Chances are your RAM can't handel it. So run the RAM 1:1

jjcom

TribesMan

11-27-2004, 01:08 PM

Xassius

11-27-2004, 01:15 PM

This is strange... I tried everything from 333, 400, 533, 666 and by SPD but CPU-Z always reports 4:3 FSB:RAM ratio... and 355MHz mem speed. I just dont get it... what bothers me most is low bandwith... 5500MB/s is low for DC DDR2 533... it should be 6500MB/s or 7000... 63% efficiency is just too low...

Any ideas what to do? Or is it just a buggy BIOS?

keep in mind that prescotts report a MUCH higher memory bandwidth than their northwood counterparts. I would say that score would be about right....what latencies are you running the DDR2 at?

jjcom

11-27-2004, 01:28 PM

no that ain't bad if your getting 5500, thats pretty good. Try flashing the BIOS with a newer versions, maybe this board had a bad flash

jjcom

Xassius

11-27-2004, 01:35 PM

no that ain't bad if your getting 5500, thats pretty good. Try flashing the BIOS with a newer versions, maybe this board had a bad flash

jjcom

I just thought of it...your memory may be running correctly at 1:1 ratio's...but CPU-Z reports wrongly....

and so...Sandra mem benchmarks would be skewed...thus the only 63% efficiency

try running Memtest 1.30...and see what it says there :)

TribesMan

11-27-2004, 01:42 PM

Oh... I just tought it should be higher... I was used of bandwiths around 6000MB/s on old 800MB/s FSB... and I was expecting a bit more.

I already have latest version of BIOS... so there is nothing to do...

I will try memtest... report follows :D

TribesMan

11-27-2004, 01:56 PM

Just tested it... at SPD it also reports 4:3 ratio and 355MHz mem frequency...

Then I set it to 400MHz and then RAM:FSB was reported as 1:1 but only in memtest... so I went to windows and tested Sandra mem bandwith... it is only 4500MB/s and 53% efficiency... Super Pi 1M is also 2 secs slower than before... This is very strange...

jjcom

11-27-2004, 02:06 PM

Run your RAM at 266mhz with SPD timings. What type of RAM do you have.

jjcom

TribesMan

11-27-2004, 02:54 PM

I have PQI DDR2 533 with default timings 5.0-4-4-12... it sucks... but if I set it to 266MHz (533) speed it id doing just fine with 3.0-3-3-8... but bandwith at those settings is still lower than with 355MHz and 4.0-4-4-12 timings...

533 4-4-4-12: 1900MB/s in memtest and 4500MB/s in Sandra
533 3-3-3-8: 2100MB/s in memtest and 4800MB/s in Sandra
710 4-4-4-12: 2500MB/s in memtest and 5500MB/s in Sndra
766 4-4-4-12: 2600MB/s in memtest and 5700MB/s in Sandra

So this is it...