Are you talking about these 4gb rams? They are rated to run exactly at 1000mhz.

http://www.xtremesystems.org/forums/showthread.php?t=162127

Bro where did you bought these RAM?!!
I can't find them in KL, or probably I'm not looking hard enough.

I really need this RAM to get a lower PL since my Kingston HyperX 800mhz is "rattled under pressure", can't get my system to stabilize with them.
At least with those G-Skill I can get stable @ PL 7.
Underclocking a 1066mhz RAM doesn't quite do the job for me, i need a perfect 1000mhz RAM...

Can you recommend me where to get these RAMs ?(preferable in downtown KL)
I'm in the search for F2-8000CL5D 2GBPK, (2Gbs in enough for me)

I got them from kingmaker like more than 1 year ago Dont know if its still available, you can ask him yourself

http://forum.lowyat.net/index.php?act=ST&f...0#entry14962281

EDIT: Just noticed that the thread is now closed. Sorry mate!

This post has been edited by tesla_rage: Jan 15 2010, 08:05 PM

No prob... but now I'm poisoned!
I'll manage to get those RAMs somehow



Anyone else who read this, I would like to propose a trade of my 4 months old HyperX with F2-8000CL5D 2GBPK

im poison too =.=.. btw im using hyperx oso.. just dat mine is 4gb and 1066mhz..

i felt like a waste actually to purchase 1066mhz.. bcoz if wan to get 1:1 timing i need to get my fsb up to 500 at least.. and my board max is 400 fsb only =.= sighs..

come i giv u my KVR 800Mhz, u gimme yr KHX 1066Mhz.. my board can go higher than 400

tight the timing then..

=.=, give me ur board.. i give u mine =p

i might consider getting a new board.. still considering.. and dunno which board to get..

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Added on January 16, 2010, 5:32 pmbtw,farscope u stay in kepong rite? me sri damansara.. come my house teach me =p

or every nite im at aman puri old town.. if u see a guy using hp dv2 lappy then it shud be me.. almost every nite i'll be there..

This post has been edited by evoangel: Jan 16 2010, 05:32 PM

Don't worry, actually your 10066mhz is more than happy to be underclocked, it can run tighter timing without issue @ 4-4-4-12 with stability if underclock to 801mhz.

Run Everest Memory Benchmark, which is more faster:
1) 1066mhz @ 4-4-4-12 with default PL
2) 801mhz @ 5-5-5-15 with PL 8~10.
3) 801mhz @ 4-4-4-12 with PL 8~10> ( I doubt you can get it stabilize with this, but if you do, than it's awesome)
4) 1200mhz @ 4-4-4-12 with default PL
5) 1200mhz @5-5-5-15 with PL 9~11
ETC.

This is what I can think right now.....

1:1 is old school approach, really, it was made obligatory during DRR1 era if you want to OC the ram, DDR2 is a bit different nowadays..
5:4 is as great a ratio as 1:1 ( that is for 2 core procs with DDR2), so can be said for for other ratios depending on your hardware.

For everyday use I OC my ram to 1066mhz @ 2.1v with PL10 @ 5-5-5-15.

BTW, I'm pretty much off topic because this has nothing to do with OC'ing procs anymore, but the whole system performance.

everyday? y u r there everyday? yr shop ah? lol.. anyway, i m not at kepong right now.. at my hostel..

its good wat.. i need to learn bout these after i finish my exams..

btw, the stability issue i mentioned last time was caused by bios.. a reset on the bios solved everything.. but i haven OC my proc yet, still at stock speed.. will do it after my exams..

not my shop.. but i like enjoy coffee and surf lyn sitting there.. =p

my part time leisure.. and of course i cant smoke inside my house.. u understand lor..

btw, i still dun get the PL thingy here.. does everyboard have it?to be more specific im using giga..

I c, I never owned a Gigabybte board.. I only know much of the Asus mobos.
I lik Asus bios settings(specifically 'Ai Tweaker'), it's very nice to OC, especially to do with this PL thingy.

The PL thing you need some time of research hours, dunno what it's called in Giga boards, but for now should un~leash the potential of that HyperX 1066mhz.

Now that you mastered CPU overclocking, you should move to RAM OC'ing.
In RAM OC'ing, either tighten the ram timing or increase the clock speed while tweaking the voltage(vDimm) for stability.
(I dunno if the HyperX can do both tight timing and high clocks at the same time...at least stabilization is concerned.)
Then run prime95 or any proper memory stress test software to test the ram out.
After that, you need a memory benchmark test, e.g. 'Everest memory test & benchmark' to compare which configuration is best.

Sound complicated? Not really, just need time grasp the idea.
Even a guy like me who takes these thing as one of my many hobbies took less than 6 months to learn adequately to OC the PC..
Your HyperX is crying to be OC'ed, even a little is good enough...

Btw, I like that Old Town Hazelnut Coffee

haha, probably still a long way for me.. i should do better in ocing my cpu first before turning into ram oc.. OC'ing still new to me.. wat i do is i read all lyn topics, and i just DIY myself.. watever those sifus post i just follow.. i will follow u! =p

basically i like to take action fast rather than posting and asking how to do step by step.. im a bit kind of rushing.. that is y i bought C2D at the first time, when most of the ppl here poison me

so i took the decision and straight went to low yat, go to the shops, grab this grab dat, go home, assemble myself, load vista, open lyn.net, copy watever post here, restart my pc- go bios- OC! all done in 1 day for a person without any knowledge on OC and an AMD user all the freaking time!

normally i order Cham or Kopi O.. and course a pack of cig.. sit there for 2-3 hours, typing this post.

hye, this is my first time im post here. usually i just read the all ur post to gain knowledge. then i try to oc my proc, E7200 to

vcore=1.28v at cpuid. 1.31v at bios
multi= 9.5 x 375
ram= kingston hyperX ram at 750mhz 5-5-5-15
vdimm= 1.9v at bios
FSB:DRAM= 1:1

the problem is i cant go higher fsb. if i go higher i cant boot into windows.would like to ask where is my mistake.this is my first time using giga mobo and new to it.how to make ram speed constant.plz can someone share ur experiance and knowledge

u cannot go higher fsb? how bout pump some more volt on vcore or try pump NB voltage little by little..

my EP45-UD3L can boot 400Mhz easily but with x9 multipler.. u can try tat.. lower yr multipler and see can boot onot.. i did not try x10 multipler cz 3.6Ghz was my target tat time.. but i think i can go higher by adding more voltage..

The Vcore, still can increase up to 1.32v.

Anyways, I see the rams is downclocked to 750mhz to synchronize with the FSB of 375. Thsi is to maintain that 1:1 ratio.

Bro, try change the FSB to 400, with ram divider to 333, this will allow the ram to be set at it's default clockspeed of 800mhz.
And change the multiplier from 9.5 to 9, this will OC your proc to 3.6ghz, which is a pretty good OC.

Other settings like vdimm should be default speed, but it's better to set it manually than AUTO, find out what's the ram's default vdimm at kingston's site and set to it respectively. BTW I'm using the same RAM and I set it just a little above default: 1.84v.

Always monitor your temps bro when running a stress test. Make sure it doesn't go above 75c when running test like prime95, etc.


Bro, now the best thing is to always update here in this thread so we guys over here can help you out...

changes i made:
change multiplier 9.5 to 9.0
change fsb 370 to 400
change vcore to 1.32v
change mch freq latch from 400 to 333
ram timing still the same
vdimm change to 1.8 to 2.00 since in data sheet mention kingston made test at 2v with 5-5-5-15

got bsod after starting windows.said hardware error if im not mistaken.sometimes it hang during starting windows

Ok,bro, I took couple of minutes Google'ing around and I come up with couple of rough ideas:
1) Most probably your E7200 needs lots of voltage pumps into the Vcore to OC above 3.6ghz. Some rough values I can give you is 1.34v~1.38v and above..
2) Your E7200 can't hold FSB above 375.(when combined with specific mobo, in your case Gigabyte) But I've check and some guys can't get the E7200 stable on 400X9 but stable on 420X8.5, do give this a try.
3) Your Gigabyte mobo needs to update bios, from what I've read the Gig mobo have quite an issue when paired up with the E7200..

Do read this, it's a review on E7200, on the section of Overclocking:
http://www.legitreviews.com/article/690/12/



IMO, I think you gotta do an "FSB hunt", meaning you have to find another FSB value other than 375 and able to be stable on higher fsb, AND with different multiplier, like 8.5 for instance.
But always keep in mind that the odds are that FSB can be set above 400fsb are possible, for example like 420 X 8.5, etc.

You have to try different combo of fsb X multiplier..

I get the feeling your situation is more trickier than most of E7xxx users here. An E7400 would be much easier to OC...

yea..i also read somewhere these guys OC E7200 to 36.ghz at stock voltage.to go more they increase the vcore.but im not sure coz afraid that i might burn it
btw ill try ur recommendation later.not have enough time rite now..ill keep update later..thx btw for helping me...

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Added on April 6, 2010, 7:37 ammy progress report..LoL
i manage to pull 400mhz from my E7200 at 1.33v at bios. but cpuid shows 1.28~1.29V..whcih one is da true value?but to make it stable and bootable i drop the multiplier from 9.5 to 8.

as suggested by JoBigShow to increase fsb beyond 400, it cannot be done yet...due to time constraint..LoL. but its true u need to pump a lot V into Vcore..but some people can do it with lower Vcore...

btw the temp, 40'c at idle 60'c at load dring prime95. all 3 prime95 for 7hours
multiplier 8.0
fsb 400
vcore to 1.33v in bios but cpuid shows 1.28~1.29v
mch freq latch 400
ram timing still the same
vdimm auto


This post has been edited by deep_hunter: Apr 6 2010, 07:37 AM

The load temps are pretty okay for 3.2ghz, well as you know it, all procs are uniquely different to one another, those guys who manage to OC with high clocks and low vcore are very fortunate...

Sweet, actually to get the FSB to 400 is an achievement! Now you can run your HyperX at its intended stock speed of 800mhz. (if you did select the dram freq. to 800mhz ,that is...)
btw, with an FSB of 400 and mch freq latch 400, you can OC your HyperX to 1000mhz , but that's for later...
I OC'ed my HyperX from 800mhz to 961mhz (you need to set the latch to 333 with fsb of 400 to get this...

The differences in Vcore value in Cpuid and bios probably caused by Vdroop. You can improve the Vdroop by: Enable LLC (Load Line Calibration) in your Giga's bios.
Actually LLC is encourage for 45nm chips, from and article I used to read, it's healthier for the chip. (too long to explain, just Google it up bro)
This goes for CPU Spread Spectrum, enable it for insurance, and disable it for CPU overclocking ability.
FYI, I set both LLC and CPU S.S enabled on my mobo, it doesn't interfere much at all with OC'ing...just that I would like to keep my proc healthy.

Anyways, your ultimate goal I think should get your proc to boot up @ 400X9.5, 3.8ghz. (at most below Intel's recommended specs of 1.3625v)
Although I think 400X9, 3.6ghz is good enough for the E7200.

So your next logical step is to get the proc stable at 400X9 (3.6ghz) in order to give some hints if you can achieve 3.8ghz...

I hope the Vcore that needs to stabilize @ 3.6ghz is much lesser than 1.3625v, because that way, it will give you much headroom needed to pump juice to your proc when you decide to go to the next step...oc'ing it to 3.8ghz.


This post has been edited by JoBigShow: Apr 6 2010, 04:12 PM