Warning... do NOT get a 600 core read here:

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02-24-2005, 10:16 PM
Sentential

Warning... do NOT get a 600 core read here:

Ok, just a little update. Having a hellova time getting things stable and Im afraid I know why.

For those who have plans to buy 600s DO NOT! Unfortunatly like the current state of my life im going to be getting rid of this most likely as well. Probably very soon. Starting to run out of options, not sure what I should do

The issue with the 600s that make them **** Ocer chips is this "throttleing" nonsense. Ill explain:

When your CPU is on idle it automatically throttles the CPU back to:
14 x 200 @ 1.2v = 2.8ghz

Not such a big deal right?

Here's the *real* issue that no one discusses here. When it throttles it does so purely by multipliers. So when you push the bus up you run into serious problems. Observe

<normal> 16 x 250 = 4ghz @ X.Xv
<throttle>14 x 250 = 3500mhz @ 1.2v

Once the throttle kicks on instead of running your processor at a small 2.8ghz instead it attemps to force your Prescott to run at 3.5ghz @ 1.2v. THAT is a serious problem if you are looking to break 4ghz or have a high bus speed

Thats a hell of alot to ask of ANY processor much less a prescott. Because of this you can and will get errors when you push the CPU up purely because of the idle voltage being so damned low.

As for the review Im going to end sadly on this sour note. I have no need for a CPU that maxes out pre-maturely because of this.
02-24-2005, 10:23 PM
perkam

Care to give some CPU-Z shots Sentential??

So sorry to hear that, and I for one knew that you were quite excited about the 600 series. Though can you try it on another board. Perhaps this shows problems with 6xx compatibility with your 865PE chipset??? Just a thought, u might want to try that before sending the CPU back.

Hope you find a good solution to this. (Though whatever you do dont give up on Intel yet lol). But if it does the same exact thing on a 915p or 925x chipset we might have an issue here. In which a certain E0 stepping 5xx processor should VERY easily satisfy your thirst for a good OC.

Always nice to have ppl willing to try out new hardware on their own to warn other about its risks. Hopefully, its a bios issue at launch. ;)

Perkam
02-24-2005, 11:54 PM
warlock110

that's too bad to hear, maybe swap over to the 5XX series?
02-25-2005, 12:03 AM
Apocalipsis

Do you mean that the voltaje throttles too to it's nominal value?

Throttling by multiplier is not new, E0 5xx CPU's do it too, my 540J with C1E capabilities enabled in bios throttles to 14x multiplier when idle but of course the voltaje is unchanged so when you have some cpu load it automatically set 16x multi.

I'm running 250x16 with load and 250x14 idle, both at 1.4v.

Regards from Spain,
Apocalipsis.
02-25-2005, 12:04 AM
warlock110

yes, his votage throttles too :) funny how intel's brain power is messing with us.
02-25-2005, 12:38 AM
B5I8

I take it there's no way to disable this throttling in your BIOS or something? I don't have a lot of experience with P4's so don't mind my asking.
02-25-2005, 01:25 AM
p0tempkin

Can't RM Clock disable the throttling?
02-25-2005, 01:49 AM
Xassius

You can disable throttling in the BIOS.
02-25-2005, 01:50 AM
hipro5

Can you try this and DISABLE(uncheck) the "Thermal monitor" box to see if it works....?...... :)

http://www.thelab.gr/images/Hipro5/Temp/ctp4.zip
02-25-2005, 02:13 AM
Carnajo

Quote:

Originally Posted by Xassius

You can disable throttling in the BIOS.

IIRC from another thread, you have the ASUS P5AD2-E right?
So the ASUS lets you disable the throttling? Which option is it if I may ask.

Perhaps Sentinel's BIOS in the ABit (I think) doesn't support this?
02-25-2005, 03:43 AM
DanIdentity

Quote:

Originally Posted by Carnajo

IIRC from another thread, you have the ASUS P5AD2-E right?
So the ASUS lets you disable the throttling? Which option is it if I may ask.

Perhaps Sentinel's BIOS in the ABit (I think) doesn't support this?

I'd also like to know if the P5AD2-E allows you to disable SpeedStep because I'm considering getting the board with a new 600 series chip.

Sen is using an Abit AS8, they haven't released a new BIOS to officially support the new 600 series chips, so I have a feeling it's Abit's fault.

Don't jump to conclusions so fast about the new platform Sen, I'm pretty sure the Asus board allows you to disable SpeedStep. Abit is just slacking on this issue.
02-25-2005, 04:39 AM
Apocalipsis

In CPU Configuration set C1E "disabled".

Regards from Spain,
Apocalipsis.
02-25-2005, 04:51 AM
Firefoxx

Yeah, this really works, my 660 works perfect with C1E disabled
02-25-2005, 04:56 AM
perkam

Quote:

Yeah, this really works, my 660 works perfect with C1E disabled

Can you disable it on 865PE chipset????

Perkam
02-25-2005, 04:58 AM
Carnajo

Which mobo do you have firefoxx?
02-25-2005, 05:38 AM
Firefoxx

http://www.xtremesystems.org/forums/...ewpost&t=54224

Take a look there, I could disable it with my P5P800 and with my AS8 I didn't even have to do this.
02-25-2005, 06:02 AM
perkam

Quote:

Take a look there, I could disable it with my P5P800 and with my AS8 I didn't even have to do this.

Do what??

Perkam
02-25-2005, 11:28 AM
Supertim0r

Hi!

I just updated my shuttle bios (new 630-660 cpu support)
Is C1E = Execute Bit Disable ? cuz this is the only option i can disable

Thanks !!
02-25-2005, 11:38 AM
Apocalipsis

Quote:

Originally Posted by Supertim0r

Hi!

I just updated my shuttle bios (new 630-660 cpu support)
Is C1E = Execute Bit Disable ? cuz this is the only option i can disable

Thanks !!

No, it isn't, Execute Bit Disable is about NX Flag (antivirus related), if you don't have the C1E option in bios you can try the program provided by Hipro5 in this same thread.

Regards from Spain,
Apocalipsis.
02-25-2005, 12:04 PM
Sentential

Quote:

Originally Posted by perkam

Do what??

Perkam

Exactally. I'd like to know how to disable this :banana::banana::banana::banana:. I seems very odd to be maxing out at 3.8 :stick: Could just be me since this IS my first intel but still.

I agree with everyone here tho, I do belive its a BIOS issue
02-25-2005, 12:08 PM
DanIdentity

Quote:

Originally Posted by Sentential

Exactally. I'd like to know how to disable this :banana::banana::banana::banana:. I seems very odd to be maxing out at 3.8 :stick: Could just be me since this IS my first intel but still.

I agree with everyone here tho, I do belive its a BIOS issue

Try what Hipro5 said.
02-25-2005, 01:02 PM
DEVIL_DK

i Have the DFI LP 875-T
and a 640 3200 running 4400 no problems

this is with superpi patch non patch is 28 sec

http://www.overclocking.dk/img/users/319_04.jpg
02-25-2005, 01:07 PM
DanIdentity

What are you using for cooling DEVIL_DK?
02-25-2005, 01:08 PM
DEVIL_DK

Quote:

Originally Posted by DanIdentity

What are you using for cooling DEVIL_DK?

h2o cooling
idle temp 28º
load temp 38º
02-25-2005, 01:51 PM
Gabriel7

Very nice...
Can you give us sspec?
02-25-2005, 02:33 PM
uclajd

What settings in bios did you use to turn off throttle?

Quote:

Originally Posted by DEVIL_DK

i Have the DFI LP 875-T
and a 640 3200 running 4400 no problems
02-25-2005, 03:47 PM
DEVIL_DK

Quote:

Originally Posted by Gabriel7

Very nice...
Can you give us sspec?

DFI Lan Party 875-T
Intel 640 3200@4400 H2O Kølet
A-DATA PC 4800 1:1 2.5-3-3-5
Sapphire X800XT PE Zamlan VF700-CU
Audigy 2
2X120 GB seagate 7200.7
Pioneer DVD-R 107*LG L1910S

cpu-z 1.27 say my cpu go to 14 idle and still run satbil

rigth now i have a x800se my x800xt pe are to RMA :(
just to see how fast the cpu is i run af 3dmark 2001se and got a score of
29678 :slobber: with a x800se running 581/581
http://service.futuremark.com/compare?2k1=8448955
02-26-2005, 05:57 AM
Apocalipsis

Nice score there Devil_DK, seems that the new 6xx series is the way to go, great OC capabilities 3.2@4.4 not bad indeed.

Regards from Spain,
Apocalipsis.
02-26-2005, 06:30 AM
DEVIL_DK

just got my new X800Xt PE today tog a fast test in 3dmark 2001 se
no OC on 3D cpu running 4415 mhz score 31648
http://service.futuremark.com/compare?2k1=8450100
02-26-2005, 08:39 AM
uclajd

Quote:

Originally Posted by p0tempkin

Can't RM Clock disable the throttling?

That program crashes my PC like the Hindenburg.
02-26-2005, 09:07 AM
BigStan

Someone should give this thread a new title. Seems like these 6xx procs are doing a little better then the original started of this thread thought they were doing.
03-01-2005, 05:55 AM
Carlitoo

Hah ! I just installed my p4 640 cpu a few minutes ago and at my 1st attempt i put it on 4.0 jiggameggawatz @ 1.4v :banana:
This chip seems to be a awesome oc'er i'll let you guys know when i max out.
On the Asus p5ad2-e you can turn speedstep off ! Hope they bring out the bios with the unlocked multi out soon.
Also im on aircooling but ill be switching over to the Thermaltake Bigwater waterkit soon.
03-01-2005, 06:15 AM
Carlitoo

im amazed by this chip. im at 4200 mhz now @ 1.4v. I had to lower the ddr2 to 700mhz because at 800mhz it had problems booting.