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hello guys,

this is my first post and also my first attempt to overclock my system. before that below is my system spec
,

CPU - Intel Core 2 duo E6320 (1.86Ghz) - running on Vista Ultimate
Motherboard - Gigabyte GA-945GCMX-S2 (rev 6.6) - support 1333FSB
RAM - 1Ghz Apacer DDR2 667mhz
GPU - Gigabyte Nvidia 8600GT 256MB (Overclock to 660/820Mhz)
Hardisk - 250GB Sata Samsung
Cpu Cooler - Stock Cooler
PSU - 500W Telcom power Supply

so here is the problem:-

1) i was able to push my cpu to 2.45Ghz (350 FSB - Run on orthos for 3 hour without problem) at stock Vcore (1.325v at bios but it seem diffrent on cpu-z) and increase the DIMM Voltage +0.1V. Memory:Cpu set to 1:1, but when i increase the FSB to 360, orthos test only last for 1 min before crash... i tried to increase the Vcore to 1.4-1.5 also still crash on orthos.. i even tried to increase the FSB voltage (+0.1V) and Dimm Voltage (2.2V) but still cannot stable at this fsb... i do not know what wrong and FYI my idle temp is 40-43c and max load on Orthos is about 60c.. please advise

2) secondly, it seem that this motherboard has pci-e frequency set to auto, SYC and ASYC. for the overclock above, i let it at Auto, but ive read somewhere that we have to set PCIE to 100mhz (Which is ASYC option on bios) but when i set it to ASYC, the bios will reset itself to default value (which it will back to 1.86ghz (266x7)) - i dont know whats wrong with this...

3) please help and advise me what bottle neck my system - my 3dmark06 score is just 4726-4950..

4) is this because of the motherboard fsb limitation or what- if i set fsb above 380, the bios will reset to default value...

thanks for your help...
 

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Hey, welcome to the forum. My post is going to be more of a general thing to help you. After eliminate a few guesses, some other people can definitely help you push your system to max.

Just wondering Intel people, what's a good load temp for the C2Ds? 60 seems pretty up there...

Have you tried to test your RAM individually? Memtest isolates the RAM, so that should tell you if it's your RAM failing instead of your CPU. This would be my guess to the problem. I haven't heard of your RAM's brand, so therefore I can't tell you how well it OC's. If your RAM is the problem, then start using a divider to bring the freq. back down to near or little higher than stock.

As for the PCIe freq, the reason you need to have it at 100 is because when it goes above it, it causes system crashes. But I believe auto should keep it at 100. I can't think of a program that would tell you what your PCIe is in windows; maybe someone can recommend something for this.

You should read some of the sticky notes we have for overclocking. It will take your through a process of finding the max for your RAM, CPU, and mobo, which will help you a lot. Good luck and have fun!
 

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Don't leave PCI-E at auto set it to 100 can go up to 105 but any higher is corruption, and PCI has to be at 33 mhz as well . On that CPU would keep load temps down below 55c max and don't know how good that RAM is?

Set all BIOS option off/disable them not needed
Loosen RAM all the way 5-5-5-18
Max RAM voltage it requires
Memtest it for awhile
Keep temps in check

Thats what I could say to try and help sorry if nothing works.

Do you have the latest BIOS flash?

Whats the Amps on your PSU?
 

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Discussion Starter #4
Quote:


Originally Posted by Rick Arter
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Don't leave PCI-E at auto set it to 100 can go up to 105 but any higher is corruption, and PCI has to be at 33 mhz as well . On that CPU would keep load temps down below 55c max and don't know how good that RAM is?

Set all BIOS option off/disable them not needed
Loosen RAM all the way 5-5-5-18
Max RAM voltage it requires
Memtest it for awhile
Keep temps in check

Thats what I could say to try and help sorry if nothing works.

Do you have the latest BIOS flash?

Whats the Amps on your PSU?

Hi Rick Arter, Thanks for your reply,

i havent check my PSU Amps, but my BIOS ver is the latest.

as for the PCi-E, i tried to set the frequency to 100mhz but the bios will reset to default value... dont know why, so i have to set it to either auto or SYC (which it says PCI-e will sys with cpu frequency - dont know what this mean either..
).

as for the ram, i will try to memtest to find the problem


i will post what happen next...
 

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i'd bet money it's your RAM. that will probably be the weak link holding you back from a higher overclock. those E6320s love to OC.
 

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Quote:


Originally Posted by MrBungle
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i'd bet money it's your RAM. that will probably be the weak link holding you back from a higher overclock. those E6320s love to OC.

i bet you right MrBungle, i run memtest while running on 360mhz fsb, and just 1 sec return so many error.. maybe this ram cannot handle 720mhz... i already change to5-5-5-15 and 2.1v but still fail in orthos... i run on 350fsb, the memtest is ok and the orthos also ok for about 15 min..

can someone tell me what causing this --> when i set the fsb to 380-400mhz, the bios will reset even i increase the fsb voltage to +0.3v, set vcore to 1.5v, still cannot boot the windows... i dont know if this is cause by the mainboard but the limit for this mainboard in bios is 100-600 mhz

so guys, what should i do now? buy a better ram? can you recommend best ram that value for money?

any recommendation?...

thanks in advance...
 

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Quote:


Originally Posted by MrBungle
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i'd bet money it's your RAM. that will probably be the weak link holding you back from a higher overclock. those E6320s love to OC.

Yeah, I agree with this. You're RAM could definitely be holding you back. You could test it out by running at a multiplier, and keeping your RAM at stock 667MHz... then OC the processor some and run Orthos again.

A few great sets of RAM at good prices:

G.Skill NQ's, 2GB DDR2 800 (cheaper than the HZ's, but still good memory IMO)

Super Talent DDR2 800 (I've heard these are pretty good too).
 
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