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P5LD2-VM 2.0 - Best Board for Core 2 Duo Overclocking / GMA950


Wallstreet
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How do you get it to show (and use) 2 cpu's? I have a core 2 duo 6400 and in about this mac (10.4.7) it shows 1 CPU (but says it's Core 2 CPU). In 10.4.8 upgrade for SSE3 it shows the same, but then shows CPU as Unknown.

 

Any advice?

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Are you using the JaS discs and did you do the SSE3 in addition to the combo update under the 10.4.7 patches. because that is what I did and mine works just fine for that.

 

And I will try to look for that Infamous. Just don't really know what I am looking for as I am coming form the Mac side of things.

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How do you get it to show (and use) 2 cpu's? I have a core 2 duo 6400 and in about this mac (10.4.7) it shows 1 CPU (but says it's Core 2 CPU). In 10.4.8 upgrade for SSE3 it shows the same, but then shows CPU as Unknown.

 

Any advice?

 

 

Load the Activity Monitor in the Utilities dir. It'll give you two graphs if both CPUs are working.

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  • 1 month later...
(Updated on 10/1/06 - Bumped up to 2.93GHz @ 326MHz FSB reliably while maintaining a safety margin)

 

My XBench results (@ 2.90GHz) are here: http://db.xbench.com/merge.xhtml?doc1=193831

 

=WS=

 

Just quickly playing with some of the suggestions you gave I was able to my Dual Core Pentium D 2.8 up to 3.4Ghz. I normaly just run the standard AI 10% OC which nets me about 3Ghz. Thanks for the info, I was wondering what I could do to try and push my CPU a little faster since nothing faster than the AI 10% would work. My XBench 1.3 score came out about 2 points better w/ the OC.

 

What video card would you recommend. I'm still on the GMA950, but I would love to get a nice mid class ATI.

 

Thanks,

 

Kage_

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  • 2 months later...

Wow thanks for this post Wallstreet :)

 

 

I changed my p5ld2-vm rev1 for a rev2 last week and popped a e6600 in with 4gb Geil ram. Got the fsb to 295 totaly stable but any higher and it spacked out on me. Thought to myself 'why does everyone else get a cpu that can clock high but I always get a duffer'.

 

Read your post and just thought hmmm i'll have another bash at it now - lo & behold i'm here on 320 fsb, ram actually at 800mhz with 1.9v and pcie is at 118.

 

That pcie mhz is the key - manually set your fine.

 

Bloomin fantastic :):thumbsup_anim::star_smile:

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  • 1 month later...

Just wanted to share my results with overclocking E6300 on the Asus P5LD2-VM.

 

PCI-e @ 100

Cheap PC5300 RAM @ 1.9V

295 fsb, 2.07 GHz

 

PCI-e @ 118

Cheap PC5300 RAM @ 1.9V

316 fsb, 2.21 GHz

 

PCI-e @ 118

Corsair PC6400 RAM

330 fsb, 2.30 GHz @ standard core voltage

 

PCI-e @ 118

Corsair PC6400 RAM

348 fsb, 2.43 GHz @ 1.350 core voltage

 

Now, what's weird is what happens when I set the fsb to 382 or higher! When I set fsb to 382, system runs with fsb at 350, which (1) is lower than what I set and (2) is higher than I achieved with just setting the fsb to 350. Raising the fsb higher than 382 gives a LOWER resulting fsb, at 400 fsb 

he system starts at a measly 2.07 GHz!

 

266-348 fsb: system runs with correct fsb

349-381 fsb: no POST

382-400 fsb: system runs with lower fsb the higher I set, starting at 350 fsb with fsb set to 382 i BIOS.

 

Can someone explain this?

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Just wanted to share my results with overclocking E6300 on the Asus P5LD2-VM.

 

PCI-e @ 100

Cheap PC5300 RAM @ 1.9V

295 fsb, 2.07 GHz

 

PCI-e @ 118

Cheap PC5300 RAM @ 1.9V

316 fsb, 2.21 GHz

 

PCI-e @ 118

Corsair PC6400 RAM

330 fsb, 2.30 GHz @ standard core voltage

 

PCI-e @ 118

Corsair PC6400 RAM

348 fsb, 2.43 GHz @ 1.350 core voltage

 

Now, what's weird is what happens when I set the fsb to 382 or higher! When I set fsb to 382, system runs with fsb at 350, which (1) is lower than what I set and (2) is higher than I achieved with just setting the fsb to 350. Raising the fsb higher than 382 gives a LOWER resulting fsb, at 400 fsb the system starts at a measly 2.07 GHz!

 

266-348 fsb: system runs with correct fsb

349-381 fsb: no POST

382-400 fsb: system runs with lower fsb the higher I set, starting at 350 fsb with fsb set to 382 i BIOS.

 

Can someone explain this?

 

For FSB<=333, you can set PCI-e @ 112, FSB<=357, PCI-e @ 120. FSB between 333 and 357, try PCI-e 112~120. Try to low PCI-e, since you don't want to fry your video card.

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  • 2 months later...

Hi,

I have this board with the e4400, 2 GHz Allendale. The set-up and installation of OS X 10.4.8 went well and I have a functional machine.

 

However, all the great tips from this thread did not seem to work for me. At firist I could only get a 10% OC, no matter what various settings I set. In researching overclocking the e4000 series chips, I ran across a reference to the bsel modification to get these chips to run the 1066 bus on 945 boards. A google search produced a few informative sites with pictures and instructions.

 

The mod is somewhat tricky because the area to modify is so small. After some very careful masking with tape, I modified my e4400 and put it back in the P5LD2-VM. The mod worked immediately, with the bus speed showing 1066 in bios prior to boot. Hoping to OC even more, I increased the FSB to 300 and then pressed Enter and the 300 was replaced by 265! No matter what number I typed over 265, it always reverted to 265, no matter what other changes I made to voltage, PCI timings, etc.

 

Interestingly, the computer will run 265 GHz very easily with other settings set to auto, so it is an easy OC in that regard. And it is powerful, even using onboard video, with an xBench score of 161.95 and a Geekbench score of 3520. However, it is frustrating not to be able to do more.

 

A search on Asus' web site forum indicated that others were limited to this 265 FSB and were hoping for a bios update, but it has not appeared as yet. Now I suppose you could get 293 GHz with the e4500, but the bios for that processor does not seem to be available, so you might not even be able to make it work.

 

Interestingly, consolation has got his P5LD2 SE to run a 333 FSB, so this might be a better board for these processors. Perhaps he could comment on the bios issues with that board.

 

Hope this aids anyone interested in this combination. Regards.

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  • 2 weeks later...

Well, I got an e6700 processor on ebay to replace the e4400. They both have a 10x multiplier, but the e6700 is not limited to a 265 FSB. So far I got this computer to a stable 338GHz with the CPU temp at 42ºC, as I type. So if you want to overclock the P5LD2-VM , you need an e6000 processor. Fun project!

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  • 3 months later...

RE: Overclocking "Pentium Dual-Core" E2140 1.6GHz on the P5LD2-VM

 

If you have not heard of this processor yet, check it out:

http://www.newegg.com/Product/Product.aspx...N82E16819116037

 

It's a conroe-based cheap Core 2 Duo for $74 w/free shipping at newegg. I got one to upgrade from my also cheap Celeron D 347 ($48 at the time) and it was a good upgrade. My XBench 1.3 cpu scores went from about 75 to 105, and everything else pretty much went up too. That was with the Celeron @ 3.48GHz vs the E2140 @ 2.02GHz.

 

Most of the reviewers of the E2140 claim overclocks of the 3GHz range on this cheap 1.6GHz "pentium" (BTW I checked with newest version of CPU-Z in winders, and it says "conroe").

But I have not been able to get higher than a stable 2.02GHz on my P5LD2-VM. Actually I did get a little higher, but I had to slow down the RAM and it lowered the benchmark scores.

 

Here is the info I have collected.

#1 - The E2140 needs the latest (beta) bios from ASUS - version 1401. Otherwise you get a CPU uCode error every bootup.

 

# ETC - Here's various reportings from CPU-Z and SetFSB....

 

The 3 manual RAM speed settings in the Jumperfree Configuration page are 1:1 (lowest), 3:4 (middlest), 3:5 (highest) - these ratios are FSB to DRAM, respectively.

The speeds listed in the BIOS RAM speed selector do not seem to be correct, according to a CPU-Z and a couple similar apps in Windows.

 

By using the above 3 ratios and the chosen FSB speed, I calculated what my pre-DDR memory speed would be. For example, if I set a FSB of 252 (my max stable with the E2140, so far), and the first/lowest RAM speed, I would get 252MHz RAM... then x2 for the DDR makes it 504MHz. That matched the windows app speeds reported. I tested each, and they all matched up this way with the ratios and DDR speeds. At the second/middle speed, 252 FSB became 336MHz x2 = 672MHz DDR. I could not go any faster with the RAM, so for the next setting I had to drop my FSB to the stock 200 (the E2140 has an 8x multiplier). At the last/highest RAM speed, my 200 FSB became 333MHz x2 = 667MHz DDR. If you whip out your calculator and use the 1:1, 3:4, and 3:5 ratios the numbers all match, and the CPU-Z reports the same.

I think my RAM/Motherboard combination is holding me way back with the E2140. At my max stable speed of 2.02GHz with 672MHz DDR, It runs in the high 20's Celsius and low-mid 40's under full load (both cores). This is with the stock aluminium Intel cooler and the thermal paste that came pre-applied to it. I have not tried a CPU voltage higher than 1.312v though. It runs just as fast if I undervolt it to 1.28v and it's cooler.

My RAM is 4x 512MB Crucial ValueRAM DDR2 667MHz with no RAMsinks / stock. I searched for the part number and overclocks, and people were able to get it to 880MHz stable at the 5-5-5-15 timings I use. WTF is my problem here ?!? I can't go higher than 672MHz without crashes. Is it the P5LD2-VM?

 

I also tested the PCI-e bus speed settings. I always keep the PCI locked to 33.3MHz, and the pci-e speeds need to be at least 114 to overclock and boot right - just like everybody else with this board. But the SetFSB program (the only I found that can measure the pci-e speed) reports what I set it to, not some 90Mhz plus overclock speed like others said. For example, I set 114 pci-e speed and the SetFSB program reports 113.3 to 113.9 pci-e speed. This makes me worry about clocking it up, but I am running totally stable with my settings currently. I have been running the iTunes visualizer at max size/speed/detail to max out the E2140, and it's been fine for a couple hours now @ 2.02GHz / DDR 672. Same test was stable also a couple days ago. I have gotten one lockup while playing Quake 4 though, but that was with lower CAS timings of 4-4-4-12. I wonder if it's the CAS timings or the pci-e overclock since Q4 runs the video card so hard? {censored}! I tried pci-speeds up to 119, but still no faster CPU.

 

Sorry if all this info is jumbled - too much coffee this morning :D

 

With my new E2140 "1.6GHz" processor, the P5LD2-VM will only allow me to choose a max FSB setting of 265. However, the max stable speed has been only 252 (8x multiplier makes 2016 MHz). It runs so cool though... and other people run it stable with a 100% overclock at 3.2GHz (see newegg reviews). Can anyone help me figure this out? Have I hit the max or should I keep bumping the voltage, pci-e, or what?

 

Full specs here:

E2140 1.6GHz 1MB L2 800MHz FSB - running at 2.02GHz / 1008MHz FSB

Crucial ValueRAM DDR2 667 p/n VS1GBKIT667D2 - running at 672MHz with 1.9v and 5-5-5-15 timing

P5LD2-VM with v1401 BIOS

XFX GeForce 7600GT XXX 650/1600 (stock... until there's a good NVIDIA OC prog for OSx86)

etc... nothing else related to OC'ing

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  • 3 weeks later...

DukeRaoul,

It appears that this processor, like the e4400 I mentionned in my previous posts, limits the maximum fsb speed to 265. This is likely to remain so unless Asus updates the bios to to fix this. I had to get an e6700 processor for my set-up to get above the 265 fsb speed limit. Some other variations of this board, the P5LD2 SE for example, don't have this limitation. As you are not using the GMA950 for video, perhaps a motherboard swap would be the way to go, if you don't wish to change processors. Good luck.

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