3.0E Prescott SL7PM voltage?

[sierra248]

Whats the max 24/7 Voltage I should run thru this processor, on the safer side?

[sdkevin]

question is do you overclock? I think V1.5 and below is safe for 24/7

[freecableguy]

It's a 3.0E....run the piss out of it and just get another if it dies.

[sierra248]

The EO's aren't that easy to find man. and yes I'm gonna overclock and am hoping to get near 4.0GHZ, so I need the extra volts.

[sdkevin]

3.0E @ 4Ghz you need about 267FSB, I have my 3.2E @ 4.1 around 255FSB stock voltage and I hope I will get more out of it

[sierra248]

Just trying to get mac out of it safely, if its 3.7-3.8 i will be happy. Is yours EO stepping?

3.0E @ 4Ghz you need about 267FSB, I have my 3.2E @ 4.1 around 255FSB stock voltage and I hope I will get more out of it

[sdkevin]

Yes E0 Stepping SL7PN, it shouldn't be any problem to get your 3.0E @ 3.7-3.8 most E0 Stepping are highly overclocking

[sierra248]

Cool, crank up them volts a little and run it at 5:4 and see what u can get out of it, im sure u can get more. u can always try 1:1 after you see your cpu's limits. I bet you do well with just a small bump up in voltage. Prob good if u have decent cooling, but even with stock i bet u do well. u may already know all this...lol, just interested to see what she can do stable.

[DocGolem]

I have the same stepping, SL7PM. Did up to 3.8 with stock voltage. After that I ran 5:4 and gave her 1.525v and it is completely stable at 4.2ghz. I think my motherboard is at it's limit since it BSOD's at 4.5ghz.

BTW- This is on a waterchiller. It looks like you're using air cooling, you should be good for 4.

[sdkevin]

I got it up to 270FSB x16 Stable @ V1.488, I am using watercooling idle 40C

[sierra248]

As I had my board modded with a Northwood in mind and its at .03 over @ 1.55, I'm just wondering if when I put in the Prescott will I maintain my .03 over or will I need to adjust it?

[sdkevin]

I don't get what is .03 mean, Prescott runs hotter, more power than Northwood so if you want to highly overclocking then you should consider upgrade your PSU

[sierra248]

.3 overvolt is what i meant, sorry bout that. What I mean is after switching from a northwood to a Prescott will I need to adjust my voltage or will the bios lower it, raise it or just make it .3 overvolted no matter what processor?

[sdkevin]

Prescott has lower voltage than Northwood but runs hotter, I think Mobo will adjust it by itself

[sierra248]

That's kinda what i thought, thought actually i thought the Prescott was higher voltage. Thanks for all the help Sdkevin, On the safe side for 24/7 whats the consensus on upping the volts on this chip?

[sdkevin]

it really depends on your cooling method, I think aircooling should keep V1.4 or below cuz you want to keep it cool idle 45C below and load 60C below. As for watercooling, which I am using and I think safe point for 24/7 use is V1.5 below but I use 250x16 = 4Ghz for 24/7 @ stock voltage. Just keep an eye on your temps while overclocking cuz you don't want to fried your chip

[sierra248]

Will do what prog u use to monitor your cpu temp? I've used em all and they all seem to do basically the same, i mbm5 allot.

[sdkevin]

I'm preferred temp probe to be close accurate, MBM5 is another choice if you don't have temp probe. I have Abit IC7-Max3 board and it reads abit high on the temps shown on MBM5 and I believe Asus P4C800-E board reads abit low on MBM5 so make sure you don't overvolt your chip too much while keep an eye on temps

[Byron]

1.53vcore idle, 1.478v full here with a 3.2 presky D0 steppingat 4.16Ghz , stable 24/7 on custom water.
Running it for 3 months now non-stop on a IC7-G, no problems...

[sierra248]

When you say temp probe do you mean a laser type temp measureing device or the long wires with little flat thermmometer on em, i have a antec P160 and it has 2 of these, that read on front panel. I just dont know where to put them for CPU reading as I can't wedge it under HSF and my P4 for a perfect reading as that would probably screw up the fact that my AS5 and HSF would be not tight fit.