Pentium D Overclock

[Azn Tr14dZ]

Use the BIOS to overclock, because you won't get high using software...

 

[Deleted member 24505]

first,

go into your bios and have a look if you can lock the pci bus to 33.33.it might be called something like-pci/agp lock or pci/agp sync or even sync pci/agp on mine it is called pci clock sync mode,dont worry if your board has not got agp if not it will just say pci.

when you find it lock/set it to 33.33,then try your fsb like you did before,if it will or will not go higher,post back here and let me know,i will try and explain to you how to change your memory divider.

anyone else care to jump in and help?.

 

[BarnyMiler]

I didn't see anything related to adjusting the PCI clock - isn't that 'frozen' in nForce boards?

I can change PCI Latency timer currently at 64.

Also see PCIE Frequency (MHz) which is at lowest - 100. Can go up to 148. Not even sure what that one does!!

 

[Deleted member 24505]

i have looked at the manual for your board and you are correct,there is no pci/sync or lock at all,i am guessing it locks it when you set the system clock mode to manual.
have a look for the setting i have marked,and set it to manual-

you can then set the mem to the rated speed of your mem in the current mem speed setting.eg- 533,667 etc
and try to put your fsb higher than you tried before.when you put the fsb up i am sure it has locked your mem to the setting you put it to.i am hoping it will also lock the pci bus to 33 as well.

try it and let me know what happens,if it will go higher.

 

[Deleted member 24505]

bump

 

[BarnyMiler]

I'm sorry You're being so cool and trying to help me out and I'm just being a lamo by not replying....my bad!!!

I tried last night to lock in the DDR frequency by setting that to Manual - and entering 800 for FSB and 667 for the Memory. I switched back to Windows and tried to let Core Center do the overclocking for me. Got up to around 225 (x 15 = 3375) and I locked up again!

(BTW, I also used nVidia's nTune application to try and find a good stable speed for me to run at and it too locked up at the 225 mark as well.)

Later on, I also tried to enter in a manual FSB in BIOS from 800 to 1066 (which the board supports, max) and was able to POST but not boot to Windows.

I guess I need to try something lower than 1066 and see what happens. Making such a huge jump is probably not a good idea! In hindsight, I should have tried 1000 I think.

 

[Deleted member 24505]

at 4ghz my fsb is 270x4=1080.i would try something between 900 and 1000 to start with,it is a pity your board has no pci lock.i would try upping the vcore A LITTLE as well try setting it to 1.350v and see if it will boot win at 950 with this vcore setting.you really should not be using the windows based overclocking utilities.950 would be 237fsb which is marginally higher than its been before.if it works then we are on the right track.

 

[infrared]

Ok, just grabbed the Pd 805 out of my dad's work computer... managed to clock it up to 4.1ghz rock stable (205x20). I was a bit dissapointed when i realised it didn't support intel speedstep, so the FSB sucked! Definatly not a good chip if you want any decent amounts of bandwidth on the memory/fsb.

They get a little hot as well... was getting over 63c @ 4.1ghz 1.55v on my Freezer 7. I can't wait to get the rest of my watercooling kit and see what this chip can really do.

Conclusion... even though it performs really well in benchmarks @ 4.1ghz, i'd still prefer my single core 640 simply because of the intel speedstep and 14-16x multi, allowing me over 340mhz fsb. Good for number-crunching though i expect.

 

[BarnyMiler]

I was thinking about getting an 805 vs. the 930 for its ability to clock so well. But thought that in the long run, I'd be better off with the chip with better features and the smaller size. Is that a safe bet?

Anyway...tigger...I tried a few things last night and really ended up in a bad place! I adjusted fsb through BIOS while keeping memory locked at 667 and increasing vcore by 0.50mV (small bump) and computer wouldn't post! I scrambled to reset the BIOS and that actually took me quite a few tries because I didn't want to take the whole thing apart to get at the stupid jumper - in the end I just popped the battery out and everything came back to normal. But for now, it was enough to scare me into taking it easy on the machine for a while.

I am still perplexed at why I can't get passed that limit, but maybe we'll never know!

 

[infrared]

Yep, the 930 would be a much better choice in the long run since it has intel speedstep, so you'd be able to drop the multiplier to 14x, and push the fsb through the roof! The 805's are only known for overclocking so well because of the 20x multiplier, so more people are able to push it to it's limits because the rest of their system isn't running that fast.

 

[error_f0rce]

I was thinking about getting an 805 vs. the 930 for its ability to clock so well. But thought that in the long run, I'd be better off with the chip with better features and the smaller size. Is that a safe bet?

Anyway...tigger...I tried a few things last night and really ended up in a bad place! I adjusted fsb through BIOS while keeping memory locked at 667 and increasing vcore by 0.50mV (small bump) and computer wouldn't post! I scrambled to reset the BIOS and that actually took me quite a few tries because I didn't want to take the whole thing apart to get at the stupid jumper - in the end I just popped the battery out and everything came back to normal. But for now, it was enough to scare me into taking it easy on the machine for a while.

I am still perplexed at why I can't get passed that limit, but maybe we'll never know!

I have the same proc and RAM, but obviously a different mobo. Yes VIA chipsets suck . I have to underclock it to 533 and allow it to auto-adjust my cpu/ram divider (unfortunately the only option I have available.) Have you tried adjusting your CPU/RAM divider? Because if you are trying to run your CPU/RAM divider at 1:1 and locking your RAM at 667, then you will be automatically setting your FSB at 333 if I'm not mistaken. That might be why your system won't post, your clock speed would be 4.995GHz!!! (w00t infrared)

So try adjusting your divider and see what happens. If you can run a 3:4 ratio, locked at 667, you'd get a 3.746GHz clock. Also at 1:1 (ideal) if you can drop your multiplier to x14, locked at 667 you'd have 4.662GHz (if your system can handle it).

Let us know what happens!

 

[Deleted member 24505]

thanks error force for the suggestions,i am kinda stuck for ideas with his board.it does'nt seem to have a pci 33 lock,i looked in his manual but could'nt find it.

it must be his board tho' coz most 930's seem to clock pretty well.

i would love to try dropping my multi to 14x and try clocking it that way,buy my p5wd2 does'nt seem to support it ,you could have a look on the net and find out for sure if it does if you dont mind.just to make sure i am not being a dunce when in fact it does.

i have tried on mine and i cannot get it to complete the science mark at 4.4ghz at 1.4375v.mebbe i need to go higher on the vcore,but i'm sure my cooler wont deal with the temp.

 

[BarnyMiler]

Tried a whole bunch of things tonight, but not really sure where I left off.

In the BIOS, I was able to use the 'Linked' option which allows me to change the Bus Speed (to a value between 400 and 1400, 800 being the default). Changing this automatically adjusts the memory speed using the default ratio of 6:10. I was able to set it at 888, which put the memory at 740 and. This booted and ran fine. I then tried 920 which put the memory at 767 and was able to post, but not get to Windows (locked up).

I'm assuming that getting things to run with the memory at 740 was luck - since it's only rated at 667, right?

On a similar note, using the Manual option, which allows me to change both bus speed and memory speed, I was also able to downclock the memory speed to 533 and 400 while leaving the bus speed at 800, which effectively changed the ratio from 6:10 to 3:4 and 1:1 respectively. However, I can't quite seem to carry this downclocking change over when I try to adjust the bus speed at the same time. It's like I can do one or the other but not both at the same time. What I mean is, I can change the values, but then it won't boot.

All of this was done under the assumption that the memory is the weak link here.

So according to what I've seen, it would be nice to downclock the memory to give me a ratio of 3:4 and then set the bus speed to 1000 which means the memory 'should' run fine at 667.

Explained:

Bus Speed: 1000
FSB: 250
Memory: ((250 x 4) / 3) = 333.33 * 2 = 667

Am I on the right track here?

 

[danielba]

Hate to bump a semi-old thread, but I found this to be a good discussion. I've reviewed a good portion of what you guys have wrote so far and have enjoyed it.

I recently purchased a Pentium D 930 and have paired it with an MSI board (P4N Diamond). I'm beginning to wonder if I made a good choice with MSI or not. I really love their boards and this one was out of sight when I bought it - got it on Newegg (open box) for like $85 (retails for ~$220) so I jumped on it.

I've been using MSI's CoreCenter to OC my processor, but so far I have only been able to get up to 3.2GHz stable. This was done by simply changing FSB up from 200MHz (stock) to 215 or so. Once I get up to 220+, system locks and reboots.

Can't really see any huge leap in CPU temp - never gets over 40 deg. thanks to the Zalman cooler. I'm beginning to think it might be the cheap memory I've got, but then I've seen others who have the same Corsair Value RAM and have had success with the same chip. The only difference then is the board.

Anyway, does anyone have any experience with MSI boards? Any hurdle's I should know about? I'm going to try a few other things this weekend - including tweaking the voltage a bit. Maybe that will help.

Just want to bad to see the 4.0GHz mark - I know it can be done!!!!

hello

i have a question at you, pls tell me if u are sure that the mainboard is MSI P4N Diamond NForce 4 Sli cipset and the cpu is for sure 930 D ( 3 Ghz dual core, 2 x 2Mb fsb 800 ) becouse i have buy the same mainboard and cpu and the msi stuff are telling me that the mainboard do not support the cpu becouse of some cipset limitation regardin the 65 nm production tehnology of the cpu. so i whant to be sure if i can use this mainboard and cpu together....

thanks

 

[pt]

Pentium D users go here:
http://forums.techpowerup.com/showthread.php?p=133453#post133453

and do your best trying to beat the AMD X2 in there

 

[BarnyMiler]

hello

i have a question at you, pls tell me if u are sure that the mainboard is MSI P4N Diamond NForce 4 Sli cipset and the cpu is for sure 930 D ( 3 Ghz dual core, 2 x 2Mb fsb 800 ) becouse i have buy the same mainboard and cpu and the msi stuff are telling me that the mainboard do not support the cpu becouse of some cipset limitation regardin the 65 nm production tehnology of the cpu. so i whant to be sure if i can use this mainboard and cpu together....

thanks

Yes, I am actually running the 2 together now and they have worked great so far. I purchased both from Newegg back in late June. At that time, I obviously researched and made sure that everything was compatible.

I have recently returned to MSI's web site and found that they no longer list the Pentium D 930 as being compatible with P4N Diamond board. I don't know why they did this, because I am running them with no problems (except my inability to over-clock the chip on this board! edit: it can be over clocked, I just haven't figured out how to get it above 3.3 GHz and stable).

If you have already purchased both, then by all means, give them a try and it should work great. But if you have not purchased them yet, then maybe it wouldn't hurt to look for another chip or board???

 

[Casheti]

Everest Ultimate Edition reports my CPU Voltage as 1.27

 

[Canuto]

That's ok mine is at 3600Mhz and it's 1.26V

 

[Casheti]

Oh, okay then...

Still wonder why I can only get to 3128Mhz before I lock up...just a gay motherboard I guess..

 

[Canuto]

I think you guess well you've said it before " this board isn't supposed to clock at all".

 

[Casheti]

Yeah...but with a voltage such as that...with you getting to 3600MHz...I have one a little higher...and can't go as far...maybe It's the ram...it's cheap infineon...I only lock up at 3135 because the ram reaches 600MHz....MAYBE that's the reason...stock is 533MHz

 

[Canuto]

Our ram is stable at 610mhz with the normal timmings 4-4-4-12 but if were you i would't go higher and that ram is giving me a headache cause of this... http://forums.techpowerup.com/showthread.php?t=15548

 

[Casheti]

Mmmm...I can't adjust my ram and CPU speed independantly , cos I'm using software that cranks up everything it can...

 

[Canuto]

Oh i see cause im OC'in in the Bios and i can always adjust the divisors but don't go any higher with that board.

 

[Casheti]

Mine are set at 3/4, can't change em