Micro Mart Forum / Overclocking / Technical Forums / overclocking a pentium D / Latest Posts

RE: overclocking a pentium D

mog wilson — Thu, 05 Jun 2008 16:01:57 GMT

Spot on Freakshow!, The D915 may have as much Ghz as a small country and produce as much heat as a supernova but my boys quiet,confident,cool and efficient E6750 blows its socks off in first gear without breaking a sweat,Its like bringing a knife to a gun fight.(All C2D's have the legs on it). I never attempted to compete with any C2D.

However the D915 can still kick it on the latest games(@ 3.6Ghz anyway) but the main reason im happy is that i got an extra 40% performance over stock speed, My ocing kudos level has gone up a notch but my carbon footprint is the size of Alaska.

warm regards

RE: overclocking a pentium D

FreakShow! — Thu, 05 Jun 2008 15:12:50 GMT

Congratulations :D

Now watch as your boy's rig still outpaces it ;)

RE: overclocking a pentium D

mog wilson — Thu, 05 Jun 2008 13:42:21 GMT

Hello, I now know what Howard Carter felt like when he opened up Tutenkhamouns tomb, Ive got this puppy at 4.0Ghz stable at the moment and as ive chickened out of lapping it im going to call it a day and give this CPU a rest, Job done.

warm regards

edit due to pedantaphobia

RE: overclocking a pentium D

mog wilson — Sun, 25 May 2008 09:59:32 GMT

Hello, Im now running this at 3.8ghz(1.3375) reasonably stable but keeps restarting(asus recovery) during games, Think it might be NB/SB voltages as the temps seem to be ok, Unfortunately the increments are too large in bios to make me want to play but its 1/3 faster at the moment so im reasonably happy.

warm regards

RE: overclocking a pentium D

-Wiz!- — Fri, 23 May 2008 20:26:11 GMT

She shouldn't be cold she's stood next to a man on fire! :P

RE: overclocking a pentium D

mog wilson — Fri, 23 May 2008 20:13:29 GMT

hello, Installed a front fan which as taken my mobo temp down 4 degrees and the x1900xt 3 degrees, Its just a pity it did not change the cpu temp.Dabs dont have any arctic silver so damn their oily hides.

warm regards

RE: overclocking a pentium D

mog wilson — Fri, 23 May 2008 11:31:16 GMT

Anyone know how to put a 120mm case fan in the front of a coolermaster 330 elite? I am not an octopus and my sausage fingers cannot comprehend how to do it,( Dont even know how to take the front panel off)

warm regards

RE: overclocking a pentium D

Slipstreem — Thu, 22 May 2008 21:30:52 GMT

Too true! :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

-Wiz!- — Thu, 22 May 2008 21:29:36 GMT

Its no easy feet keeping two P4's cool under one hood. :)

RE: overclocking a pentium D

Slipstreem — Thu, 22 May 2008 21:25:57 GMT

That's still a cracking speed for a first attempt. Well done that man! :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Thu, 22 May 2008 21:12:00 GMT

Keeps restarting @ 3.6ghz due to temps, Back to 3.4ghz until i get my case fans and Arctic Silver.

Warm regards

RE: overclocking a pentium D

mog wilson — Thu, 22 May 2008 19:03:16 GMT

Thank you Mr BJM, you are truly a pipe smoking legend.

warm regards

RE: overclocking a pentium D

BJM — Thu, 22 May 2008 19:01:48 GMT

Mog

Try a couple of these:

http://www.ebuyer.com/product/97858

at around £8 each it's worth it for a cool, quiet life :D

RE: overclocking a pentium D

mog wilson — Thu, 22 May 2008 18:16:41 GMT

Hello, Ive just pulled apart my old dell case to get the fan out to see if i could use it on the coolermaster as a front fan, After a bit of modding the connector i connected it to the mobo to see if it would work, Its a 4 pin connector and my mobo has a 3 pin one so i put it in the right colour order(wires) as best i can and booted it up.

Yeah it works, But at 3300rpm its like having an F15 in your living room so me thinks i might have to leave it off, Ive got a feeling that the 4th pin was a controller of some sort and im not sure if anyone knows if you can mod these things.

warm regards

Fan is an exhaust fan, Im not going to waste my velvety soft double quilted paper for anything other than my derriere.

RE: overclocking a pentium D

Slipstreem — Thu, 22 May 2008 17:47:42 GMT

I feel sorry for the Andrex puppy that was chasing it! :(

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

MartenReed — Thu, 22 May 2008 17:11:25 GMT

I said near, not in :P

RE: overclocking a pentium D

Phitore — Thu, 22 May 2008 10:20:31 GMT

Just had a vision of bits of tiolet paper being spat out by the fan after getting chewed up LOL.

RE: overclocking a pentium D

MartenReed — Thu, 22 May 2008 10:14:23 GMT

Mog, a good way to check your fans is to get a small piece of toilet paper (or something equally thin/light), and just hang it in front of the fan. If it gets pulled towards the fan, it's sucking in :)

Just open your case and do it with the rig running... Works for me :D

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 23:44:40 GMT

Waiting for some AS5 is a very wise move. Ensuring that your case fans are up to the job is a wise move too. The Pentium D CPUs are hot-running beasties at the best of times and run unbelievably hot when you overclock them. I doubt if it'll keep up with your boy's rig in terms of performance, but it should get satisfyingly close with enough tweaking.

As you say, it's great fun to play with because it's yours. Keep us updated, and above all, enjoy! ;)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 23:34:42 GMT

Thanks Slipstreem, Im enjoying overclocking my rig more than my boys due to the fact that its mine(my boy aint spent a bean on his though,muggins ere has) and the cpu/mobo are cheap and sort of expendable unlike my boys rig. Im not going to take it higher until i get some arctic silver, Ive used mine up and im lumbered with Startech paste which im not impressed with, Ive also got an issue with the rear fan in my coolermaster 330, I cant work out if its blowing in or out(I need a front fan as well) and im worried about my fan orientation( its placed to blow air out the back in the direction the rear fan is blowing, If it is blowing out the back!)

But rest assured, As soon as i get these sundries i will go for 4Ghz. Your right about google, Ive been scouting it for a while for D915 info and it seems to hit 4Ghz quite commonly.

warm regards

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 23:16:45 GMT

Nice going Mog! ;)

I see that you have the Akasa AK965 HSF on your beasty. I'm sure you can get close to 4GHz if you happen to have a good D915. You may need to go up to 1.35Volts for Vcore though. I've had a look on Google and plenty of people have gone that far without frying anything. It's up to you obviously, but it would be great to see it hit the magic 4GHz, even if just for a quick SuperPi test. :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 22:02:21 GMT

Hello, After a bit of hard restarting i finally got 3.6ghz from my trusty hothouse D915, I had to raise the vcore to 1.33.75 in bios to make it sort of stable(10 min in orthos stable).

I have no doubt that it will go faster, Im glad this chip has a FSB of 800, my memory will always be underclocked.:P

warm regards

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 20:46:18 GMT

Yep. I'd be inclined to leave the X1900XT at stock and just apply the ATT tweaks. It'll certainly outrun an X1900XTX at stock with no tweaks. :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 20:25:47 GMT

I tried your tweaks on my old powercooler x1950 pro with great success, I will do the same with this one.

I was trying to oc the x1900xt to the level of the x1900xtx, ive set it to default and have finally realised that im far to used to playing on my boys rig with his 3870.(x1900xt can still kick it though)

warm regards

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 20:13:22 GMT

I've come across one D915 making it to 4GHz on the budget ASRock mobo I'm using with an ACF7Pro HSF on it, so you may still get some more horses out of it yet. You have the safeguards in place so there's no harm in pushing it further.

Regarding the X1900XT, I'm not surprised it won't go any further. You were very lucky to get it as far as 650MHz. That's the fastest the RV580 GPU was ever intended to run, AFAIK. No amount of additional cooling or tweaking is going to get it any further unless you want to physically volt-mod the card. I wouldn't go there personally.

Try the ATT tweaks in the sticky linked to under my sig to pick up a few FPS if you haven't already. :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 20:08:31 GMT

Both enabled, They are settings i believe should be left well alone.

warm regards.( any tips on ocing an x1900xt?, artifacted @ 650/1550)

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 19:24:30 GMT

If the BIOS settings are similar to those on an ASUS P5K, look on the Advanced tab for "CPU TM Function" and "C1E Support". Enable them both if they aren't already enabled. The latter may not be available for a Pentium D, but don't worry if it isn't. It's the first one that's the most important. :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 19:03:04 GMT

The only temps im going by are from Asus suite(dont shout), Asus probe(yes i know) and the bios temp( which at idle is the same as asus suite idle temps). I really dont know what else to say about it(apart from i have not the foggiest on temps), Which is the part in bios which has thermal throttling? if its a default feature then i would not have changed it but in my bios i see no such reference to it(under a different name?).

Ive read a lot of your posts and replies about the temps issue slipstreem, Im sure your sick to the back teeth of repeating this advice to people so many times,(sorry for making you repeat it), It really is top notch advice and info and Im going to relax about the temps and crank this baby up to 3.6 if im brave enough.(use task manager to keep an eye on thermal throttling?)

warm regards, @slipstreem, your are micromarts very own aXXo

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 18:23:44 GMT

How do you know what the CPU temperature is? Do you have thermal-throttling enabled in the BIOS? Is the CPU thermal-throttling?

If the answers are "I don't", "yes", and "no", then you're still within safe limits as defined by Intel themselves. Believe me, they have a far better idea of what's safe than any of us do. :)

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 18:16:06 GMT

Thanks wiz, by jumping do you mean the NB voltage? Its now settled into booting twice with no (apparent) side effects at 3.4ghz, an increase of 600mhz which isnt bad. Im orthos testing at the moment but my max temps are at 62 degrees so it looks like ive reached the limit for now, According to your link my thermal limit is about 63 degrees and even though i have an Akasa 965 cooler its to hot for me.(coolermaster 330 only has one fan dammit)

see you in the pi thread.

warm regards

RE: overclocking a pentium D

-Wiz!- — Wed, 21 May 2008 16:34:08 GMT

It could be that the northbridge cannot handle the increased fsb. You could try jumping it higher to see if the fsb strap will change to give slacker latency. 400Mhz is not to bad.

Here's your cpu's spec:

http://processorfinder.intel.com/details.aspx?sSpec=SL9DA

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 16:18:29 GMT

When i turn my boys rig off at the mains it does the same thing as my rig, Good point fakesnake. The higher i oc it the more loops it does(3 last time)

My concern is that its not a feature but a problem, My mobo is qiute old in todays terms and im not sure if it does this behavior as standard. Its not the vcore(i set it as far as 1.4) or any of the chipset voltages, I will try to take it up to 3.4 and see how many boots it does.

warm regards

RE: overclocking a pentium D

fakesnake — Wed, 21 May 2008 16:08:59 GMT

not sure if the same on your board, but a lot of boards do the double booting now. when settings are changed in bios it boots twice to set the settings, same thing if you switch off at mains. soon as mine is taken off stock it does it.

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 15:16:18 GMT

I raised the vcore from auto(1.17) up to 1.3v, Not 100% sure what the optimal limit is for 3.2ghz or higher.

warm regards

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 15:03:53 GMT

I don't think you need to play with any of the motherboard voltages as the mobo is still running well within its design limitations in terms of FSB. What happens if you raise Vcore slightly? Does it help?

Cheers, Slipstreem. :cool:

RE: overclocking a pentium D

mog wilson — Wed, 21 May 2008 15:01:52 GMT

Yep, pentium D915, 2.8 with a 14x multiplier.(or x12 with speedstep)

warm regards

RE: overclocking a pentium D

Slipstreem — Wed, 21 May 2008 14:58:12 GMT

Hi Mog.

Which Pentium D is it? Is it the D915? It would be handy to know what multiplier it's running at. x14? :)

Cheers, Slipstreem. :cool:

overclocking a pentium D

mog wilson — Wed, 21 May 2008 14:48:51 GMT

Hello, Im trying to oc my replacement dell rig(after two days of hell) and im having a problem after the FSB hits 230, Im using a P5B with all its old fashioned bios settings and after the FSB is raised to 230 or over my rig has a double go at booting into post, Everything comes on, Fans etc but it has to do it twice before it will post. When im in windows its stable at 3.2 from 2.8 but im concerned that this new phenomenon is going to hurt my rig.

I have a 600w psu which powered a more power hungry rig a while ago, I have set the PCIE freq at 100, PCI freq at 33.3 and the NB/SB/FSB termination voltages at auto, Im concerned about these settings as they go up in large increments and earlier i tried NB 1.25v/ FSB 1.2v and left the SB at auto, On some forums 1.5v was set for this but in my settings anything over 1.4v is highlighted in red. Could it be the mobo voltages? or am i looking in the wrong direction, Any ideas?

My memory @ 230 FSB is running at 460mhz, far below its rated speed(667) so it cant be this.

warm regards