E6420 light OC'd with PC5300 667

[SamzAthlon]

Hi Guys,

I overclocked my system yesterday from stock settings to this:

Multiplier = 8x (max range is 6-8)
FSB = 333
Ram multiplier = 2x
Ram speed = 667 (333x2)
CPU @ 2.66 ghz

Orthos tested twice on affinity cpu0 and cpu1. Stress test results fine.
Load temp on everest for CPU core 1 = 58C, CPU core 2 = 59C

My question is this:

Since my ram multiplier is set to the lowest value of 2 and if I increase my fsb speed to over 333, the ram speed will cross over 667. Now this is a plain and simple Kingston ddr2 667 ram and I dont know how much more I can push it over its stock speed of 667.

I searched on forums and one guy took his 667 ram up to 750 by using (8x375) for his cpu to run at 3.0ghz.

What do you think? Should I try to push this ram that high?

Response and help is much appreciated

 

[SamzAthlon]

did I screw myself on getting ddr2 667 over dd2 800?

 

[Xvys]

oops

 

[Xvys]

I'm also running PC5300 ram and it goes up to 1050MHz or more. With this same system I have run two generic sticks of PC4200 ram at 880MHz. Kingston makes very good ram, even their value ram can usually be substantially o/c. I would set the ram speed on Auto, matching the ram 1:1 with the FSB (i.e. 350FSB = 700MHz DDR2 ram). Then you can just increase your FSB in increments and you ram will automatically increase at the correct MHz, although ram voltage may have to be increased.

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Asus P5B/E6300 @ 470FSB 1.32v / 2 x 1G Crucial 10th Anniv. PC5300 @ 940MHz 4-4-4-12 / ATI X800XL / Seagate 250G / Hec AcePower 420w

 

[SamzAthlon]

xvys, thanks for the reply man.

Wow, your ram is all the way up to 940!!!! how much voltage are you setting for you ram? are you on 2t or 1t?

thx

 

[hadje]

when i did my research it seemed that folks reccomended using manual settings rather than leaving things on auto in the bios, except for the ram as mentioned by the previous poster (ie- run at 1:1 with the fsb). ie-even though i am running at stock vcore now, i enter that manually in the bios instead of leaving vcore on auto.
at that time i was doing a lot of tweaking and did not save all of my notes, but it is possible that this helped me to get my current OC without having to go up on my vcore and vdimm

i mention this in case you are not already doing this...

for example here are my settings for the rig in my sig

NB v1.25
FSB Term. Volt 1.2
SB vcore 1.5
ICH Chn Volt 1.057

basically i just put eveything on its lowest setting...all is stable

 

[Xvys]

Wow, your ram is all the way up to 940!!!! how much voltage are you setting for you ram? are you on 2t or 1t?

I'm at 2t. At 470FSB I run my ram voltage on Auto. I also ran it at 2.1v (the maximum with my P5B m/b) and it makes no difference, it runs the same, it is perfectly stable. (I assume Auto is lower voltage than 2.1v). I set my cpu voltage to 1.3875, which shows up as 1.325v due to the vdrop. All other settings are on Auto. I know most o/c'ers will prefer to manually control voltages, but Auto works great on mine so I don't need to fool with it, (although on Auto, cpu voltage inflates to 1.65v at 470FSb, so I set that one manually!). With the FSB increased to 525 x 7 (3675MHz), the ram voltage was set at 2.1v, running at 1050MHz.

 

[SamzAthlon]

OK guys, I cranked the fsb to 375 with the following results

Multiplier = 8x (max range is 6-8)
FSB = 375
Ram multiplier = 2x (1:1)
Ram speed = 750mhz (375x2)
CPU @ 3.00 ghz
vcore = 1.375v
Ram = auto

Orthos ran stable for 2.5hrs after which I turned it off.

Coretemp reporting temps at load.
cpu0 = 65C
cpu1 = 63C

Funny thing is that temps at load dropped to 55c-56c for both cores when I turned by my ac on...lol

I know I should be running orthos for like 24hrs on a stretch but I am still not satisfied with these numbers, especially the vcore. I need to start bring the vcore down.

What do you think?

 

[simonnance]

i think keep your AC on, or get a better CPU cooler. Vcore isnt a problem, your cooler is, however you may get stable at lower.... im testing my E6400 @ 3250Mhz+ with 1.32V atm, however mine is a rather sweet chip.

Crucial 10th Aniv is a bad example to compare your ram against, as i can get SPi 32 stable with mine at 600mhz 5-5-5-15, 2.15V (80% overclock).

 

[SamzAthlon]

Ok, I have managed to fine tune the vcore now and here are the results. So far im pleased

Multiplier = 8x
FSB = 375
Ram multiplier = 2x (1:1)
Ram speed = 750mhz (375x2)
CPU @ 3.00 ghz
vcore = 1.275v
Ram = Auto

Orthos infin cpu0 cpu1 running stable for 12hrs now and I will let it run for another 12hrs.

Coretemp reporting temps at load.
cpu0 = 55C
cpu1 = 54C

Drastic drop is load temps after vcore was dropped to 1.275v

 

[SamzAthlon]

Hi guys.

Some final success on my chip

Orthos ran 22hr stable!!!!

temps 55/54C

http://img181.imageshack.us/im.../8716/untitled1hy4.jpg