Pentium D-915

[jimmypage13]

hey, just wanted to tell, thats a great chip!! overclocker friendly and very cheap (88 bucks on the egg) I got it a 3.8 stable on air with stock voltage, but at 4.0 the software gets unstable (luckups etc), so I wonder, should I raise the voltage??

 

[daveybrat]

I wouldn't raise the voltage, you should be happy at 3.8, that's a pretty good overclock.

 

[Cheex]

4.0GHz is always a nice target but before you raise any voltages, be sure to check your temperatures.
I had a 915 as well but my Foxconn motherboard limited my overclock to 3.36GHz (240x14).

 

[jimmypage13]

yeah I know, I should be happy with 3.8, but nevertheless 4.0 its a a very nice target indeed, my temperatures are 50c idle, 75c on like 5 hours into orthos (with the stock fan and some ac5)

 

[CurseTheSky]

With those temps, I would be very hesitant to raise the voltage at all.

You might want to look into better cooling before you do more with this chip. If you're using a sub-par air cooler, look into a Tuniq Tower, Thermalright Ultra 120, Scythe Infinity, etc.

 

[daveybrat]

Originally posted by: CurseTheSky
With those temps, I would be very hesitant to raise the voltage at all.

You might want to look into better cooling before you do more with this chip. If you're using a sub-par air cooler, look into a Tuniq Tower, Thermalright Ultra 120, Scythe Infinity, etc.

Yeah, definitely don't raise the voltage if you're using the stock cooler. To hit 4GHz you'll need better cooling than stock.

 

[jimmypage13]

thanks for the replys guys, but a question, how far can the chip go before it starts throttling or gets some permanent damage? (by heat)

 

[Cheex]

1) Turn off all the throttling stuff like CIE and EIST and all that jazz.
2) Get a Tuniq Tower 120.
3) Head for 4.2GHz (300x7).
4) Keep temps below 70C.

 

[zephyrprime]

Man, pickup a used scythe 1000 for cheap on newegg and then you could definitely reach 4.0. There are other heatsinks that are better but I sense that you are on a budget.

 

[superHARD]

Originally posted by: Cheex
1) Turn off all the throttling stuff like CIE and EIST and all that jazz.
2) Get a Tuniq Tower 120.
3) Head for 4.2GHz (300x7).
4) Keep temps below 70C.

what he said...but I don't like my temps over 65C

 

[Cheex]

Pentium D's can tolerate up to 75C-80C. So anywhere below 65C-70C is fine.

The lower the better!!

 

[nZone]

I have a strange/weird scenario for my PD 945 3.4GHz.

Using Asus P5N32-SLI Deluxe; first I run the processor and ram at stock specs:

PD 945 3.4GHZ 800FSB
RAM @ 533

Temp: idle 39-40C; while gaming @ 49C using Thermaltake Big-T.

Then I OC:

PD 945 @ 3.91GHz
RAM @ 460
This is to maintain 1:1 ratio (920FSB/460)

Temp: idle @ 35-36C; while gaming @44C.

My question is why do I see the reverse affect and not the other way around?

 

[Cheex]

Check again. Something MUST be wrong.

 

[jimmypage13]

Originally posted by: zephyrprime
Man, pickup a used scythe 1000 for cheap on newegg and then you could definitely reach 4.0. There are other heatsinks that are better but I sense that you are on a budget.

yeah thats true, iam on a budget, is the scythe 1000 better than a zalman?

 

[nZone]

Originally posted by: Cheex
Check again. Something MUST be wrong.

That is something I've been wondering. It's good this way but I want to know why it behaves like this.

 

[Cheex]

That is hard to say. What program gave you those readings?

Are you sure those aren't vice versa?

 

[nZone]

Originally posted by: Cheex
That is hard to say. What program gave you those readings?

Are you sure those aren't vice versa?

I use Asus Probe for both instances.

It wasn't vice versa because I've been running PD 945 / RAM at stock speed for about 1-2 months. I just started OC about a week ago and notice the temp idle/load is +-5/6C lower in OC than was in stock. I even switch back and forth between stock and OC; the temp is reproducible.

I don't know what gives!

 

[Cheex]

Me either...I guess you should just REALLY be happy and enjoy it...