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C2D E4300 - Hit a wall at 299x9 (2.7GHz). Help, please.

post #1 of 8
Thread Starter 
Hello,

I recently built my third computer (first was an intel 133MHz, second AMD Athlon XP 1600+) and chose the Intel C2D E4300 and the Asus P5LD2 motherboard. I added one stick of 1GB G.Skill DDR2 667 (PC2 5400) and a CHAINTECH GSE85GT-G1 GeForce 8500GT 256MB GDDR2 PCI Express x16 Video Card.

On top of my C2D I have a Zalman CNPS7000A-Cu which seems to be keeping the C2D nice and cool.

The problem: I am trying to get the most out of this awesome little chip--but have only been able to take it to 299 in the bios. I can run it at that speed in XP and using Prime95 temps peek at 57C (TAT, coretemp95). As soon as I bump the chip to ANY speed at or over 300, the system will not POST. I've upped core voltage, memory voltage with no help. I'm attaching two screenshots that may help us figure out if this chip / mobo is limited in any way. I simply cannot figure out if I'm being limited here by the cpu or memory.

Figures:

In BIOS:
Chip @ 299x9 (2.69GHz)
Memory at PC5700 (374MHz?)
IDE HDDs and CD-ROM
SoundBlaster Live Sound Card

While this is a decent overclock, I believe I can get much more out of this chip. I just cannot figure out why I'm maxing out at 299.

One more thing: How can I figure out my chip specs? I've got the retail box here at my desk, but can't remember if the information is in the serial number, etc.

Thanks for any advice, help, or thoughts.

-p


CPU Information


Memory Information
System#4
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System#4
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post #2 of 8
Raise vcore? Lock pci-e
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post #3 of 8
You could've hit a NB strap
    
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post #4 of 8
Thread Starter 
PCI-E is locked at 100.
PCI is locked at 33.3.

What's an NB strap?
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post #5 of 8
First off you should fill in your system specs, that'll help everyone who jumps into help you get an idea of what the problem may be.

Having said that, you have overclocked your ddr2 667 ram to ddr2 750 but the timings are fairly loose still try running your ram 1:1 instead of on a 4:5 ratio. So as to eliminate that possibility
Calculon Ω
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post #6 of 8
i had to raise voltage to 1.475 to get 3.3 but im lazy to get it orthos stable for longer than 2 hours . so right now i have it at 1.45 under bios and it shows 1.42 under speedfan...don't know if you have the cooling though

also try to give some extra voltage to your sothbridge and northbride also your ram.. look on web to see what your board can handle.. as far as FSB...

i looked mine up and was my choice because of 500+ fsb success. and you can always use that.
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post #7 of 8
The motherboard you have chosen is, from what I understand, not the best oc'ing motherboard.. It uses the intel 945p chipset, and so far your oc of 299 is about on par with other 945P owners..

I am not saying this means you can't get a higher oc.. I would suggest you maybe read the first post in this thread http://www.overclock.net/intel-cpus/...ions-here.html

Pay attention to the ***Overclocking*** portion of that post.. It has a list of bios settings that you should follow as best you can.. Some protections need disabled.. Read that post try those settings, then let us know..

Good luck!
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by MasterKromm View Post
First off you should fill in your system specs, that'll help everyone who jumps into help you get an idea of what the problem may be.

Having said that, you have overclocked your ddr2 667 ram to ddr2 750 but the timings are fairly loose still try running your ram 1:1 instead of on a 4:5 ratio. So as to eliminate that possibility
Updated.

Tried to run RAM at 1:1, as I understand it, 333 for the cpu clock would put the RAM at 667. This configuration doesn't work for me.

I am very likely missing some of the finer points that will get me over 300...need to bone up on BIOS tweaks...

-p
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System#4
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CPUMotherboardGraphicsRAM
Core2Duo E6750 @ 3.2 GHz Gigabyte GA-EP35-DS3P EVGA GeForce GTS 450 FPB OCZ Reaper HPC Edition 4GB 
Hard DriveOptical DriveOSMonitor
Maxtor SATA SAMSUNG 20X DVD±R SH-S203B Win7 64-bit Asus 22" WS 
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550W something Antec P182 
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