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Overclocking a Pentium D 805 and a Asus P5LD2-VM


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#1
bpeugh

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So people are saying that it is possible to overclock a Pentium D 805 using a Asus P5LD2-VM or P5LD2 up around 3.3 and I was wondering what people's experinces with this were or if there was a better board. Thanks. I am thinking of getting both of these and a Zalman CNPS9500.

#2
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ive got a toms hardware link you may want to read:
http://tomshardware....1_ghz_cores_uk/
They got it, with watercooling to 4.4ghz

#3
bpeugh

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Which is great except for the fact that I don't know if their board will be compatible with OS X and probably won't be and they didn't use any that are.

#4
sandwer

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Which is great except for the fact that I don't know if their board will be compatible with OS X and probably won't be and they didn't use any that are.


Hey - the wiki is your friend here. 10.4.6 motherboards that they mentioned are in there :)

Asus P5WD2 works a treat, I thought. Usual issues with Raid, and the sound.
Gigabyte 8I955X - works with the usual Lan, raid and audio hacks.

I'd favour the Asus myself...

Get that Zalman ordered :)

//R

#5
bpeugh

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Got the D 805 and the P5LD2-VM with the Zalman but can't get past the 10%. I think it is because my RAM is CAS 5.

#6
cucamelsmd15

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Got the D 805 and the P5LD2-VM with the Zalman but can't get past the 10%. I think it is because my RAM is CAS 5.


No, its because your board sucks. The -VM cant clock worth {censored}. Ive got the P5LD2 plain, and mine runs stable at 4.4Ghz (Vcore mod needed!). Tom's hardware couldnt do it, because they wouldnt know what a good overclock was if it bit them in the {censored} :)


ive got a toms hardware link you may want to read:
http://tomshardware....1_ghz_cores_uk/
They got it, with watercooling to 4.4ghz


They did it with an insanely high amount of Vcore too. Vcore that wasnt needed. Id put that chip to last about 2 weeks like they were running it. The people at Tom's are idiots :D

#7
dreamword

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I'm at 3.4 with the P5LD2-VM DH and the D805. Rock solid on the stock cooler.

#8
lilos

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On P5LD2 can be over a 3.9-4.0 GHz on Air using a Hyper6+

#9
bpeugh

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Okay can't get past the 2.95 which is 148. My setup right now uses an Asus P5LD2-VM. I have a ThermalTake 430W PSU. Only 2x80 GB SATA HDs attached, a floppy, a pci firewire card, and a Pioneer 111D optical drive. The case is a full ATX tower that is mostly a steel mesh with 4x80mm fans on different sides. An of course the big Zalman ontop of the CPU. So I don't think it is drawing too much power for the PSU.

I think it is the RAM. I am using 2 low end Kingston sticks of 512MB and a Crucial one that is rated 5-5-5-15. Before I changed the RAM in the BIOS to 5-5-5-15 it was reading 5-4-4-15. What should I change it to or should I buy new RAM?

Me, I would be happy being able to push it to 3.2-3.33-3.4 and would stop there.

And for the P5LD2 owner who are overclocking, are you even running OSX because I have PMed many of you and haven't found a one yet. So if you aren't, stop posting to that fact that you are just doing it on Windows because that really isn't helpful on this list! If you are, what video card are you using because it is going to cost me another $160 to get one that is compatible beyond that card if it truly works better.

#10
cucamelsmd15

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Okay can't get past the 2.95 which is 148. My setup right now uses an Asus P5LD2-VM. I have a ThermalTake 430W PSU. Only 2x80 GB SATA HDs attached, a floppy, a pci firewire card, and a Pioneer 111D optical drive. The case is a full ATX tower that is mostly a steel mesh with 4x80mm fans on different sides. An of course the big Zalman ontop of the CPU. So I don't think it is drawing too much power for the PSU.

I think it is the RAM. I am using 2 low end Kingston sticks of 512MB and a Crucial one that is rated 5-5-5-15. Before I changed the RAM in the BIOS to 5-5-5-15 it was reading 5-4-4-15. What should I change it to or should I buy new RAM?

Me, I would be happy being able to push it to 3.2-3.33-3.4 and would stop there.

And for the P5LD2 owner who are overclocking, are you even running OSX because I have PMed many of you and haven't found a one yet. So if you aren't, stop posting to that fact that you are just doing it on Windows because that really isn't helpful on this list! If you are, what video card are you using because it is going to cost me another $160 to get one that is compatible beyond that card if it truly works better.


It really doesnt matter what youre running, since OC'ing deals more with the BIOS, not OS itself.

If I were you, I would do a few things
1. Ditch the PSU, it cant support an 805 at anything over 3.3 really.
2. Dont mix the Kingston and Crucial. One or the other...
3. Let the SPD determine the clocks for the ram, dont try to set them yourself unless you really know what youre doing

#11
phi

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Your problem is maybe not only your RAM. In this forum are already some threads discussing OC issues with P5LD2-VM.

1. Its not the best board for overclocking. Forget passing 166MHz.
2. Go to manual mode and set PCI Express frequency to 116 or 118 or something like this. (Its only a bug, your GMA is not using PCIE anyway.)
3. The RAM Frequency is wrong calculated. Install Windows and check real frequency or multiplier when overclocking so you can avoid get breaked by your RAM and CL5 is not that bad, you loose max. 2%. DDR2 and Intel don't need ultra short latency.
4. If you get corrupted VGA-Pictur, try slower RAM Clock, its the GMA.
5. If it isn't stable give him some VCore and don't waste your time tuning the ram-latency its not worth.

Cheers

#12
bpeugh

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Well, I did get it set up okay except for the heat. I used the info the guy had from the other thread where he used a P5LD2-VM DH and it seems to rum pretty good except for the excess heat which is about 46-49C now. I have the prescribed Zalman in there with a 80mm in the front, on the side, on top and in the back and didn't put the rear plate in for the mobo so it could vent better. I guess I am going to have to look at those fans better tomorrow when I take it apart. I can run it at the specs below in idle forever it seems but only for about an hour and a half under duress. Any suggestions? As for overclocking it, about 3.3 does me good anyways. 3.4 might be nice but I am in my happy zone and I just bought the power supply so I want to at least wait a month before I buy another and get the heat problem under control. As for the mem, it was a piece given to me so I will use it until I can afford to swap it out which should be in the next few weeks.



CPU 165
PCI freq 118
PCI clock 33.3
mem volt 1.904
cpu vcore 1.3375

#13
bpeugh

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And I just set the RAM back to 5-4-4-15 and it seems to be doing fine. But really can't adjust any of the others without it not working properly. Saw that newegg also has a ThermalTake 600W on sale for $75 after a $40 rebate unless anyone else could reccomend a better PSU in the same price ballpark.

#14
cucamelsmd15

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And I just set the RAM back to 5-4-4-15 and it seems to be doing fine. But really can't adjust any of the others without it not working properly. Saw that newegg also has a ThermalTake 600W on sale for $75 after a $40 rebate unless anyone else could reccomend a better PSU in the same price ballpark.


Go with an OCZ, or a Fortron

#15
bpeugh

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Really didn't notice any difference and Xbench didn't show me any from going from 2.66 to 3.3 on the 805. But then I am new to PC stuff and overclocking so I thought it would. Heat is kinda bad so I might just turn the freq back down again. What does overclocking really do? I don't play video games and really don't use the Windows OS so what real benefit is there?

#16
phi

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Do you think you have a heat problem if your CPU runs at 46-49C ?

Thats normal for PentiumD. You have a heat problem if your Pentium D is over 70C.

For example (I know its a Core Duo not a Pentium D) my Mac Book Pro runs at 65 when PSU attached and doing nothing. If doing something it goes up to 85C.

If your coolers are not too loud, close the case and forget about it. That are normal Pentium temps.

#17
bpeugh

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I just find that it is a big jump up from where it was 39-40C at 2.93GHz to 46-50C at 3.29GHz. But if that is normal/standard, okay. Just used to working on Macs and if a minor change produced that much heat, then something else was up.

#18
phi

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Older Macs are hot too. I used working on G4 Dual 1 GHz, in the summer it reaches 65C and is loud like hell. Apple used crappy cooling fans.

Now I have about 48-50C with 3,82GHz instead of 3,0 and it was a jump of 10C. I think to remember but i didn't measure it, because the machine ran only a couple of hours @ stock speed :gun:

The machine is rockstable, running 24/7 and with better the feeling and speed than with the f*** expensive MBP.

#19
bpeugh

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I took my processor down a notch to 162/3.23GHz and it was able to run all night converting a DVD to mp4 and was only in the 42-45C range so I think I will leave it there. Now I just have to work on that audio problem.

#20
gazasaurusu

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I have an 805 and an Asus, but its not the same board, a P5ND2. Its really easy to overclock.

Mines at 3.8 and never goes above 35c, idle is usually around 25c.

Can't get UDMA working though, had the SATA working once but can't remember what I did. Sound and LAN work with no changes.





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