Yes, i've been working on it these days, but got into some setbacks, I've posted i thread at Q & A on how much voltage i need to stabilize the RAM from 5-5-5-15 to 4-4-4-12:
http://forum.lowyat.net/index.php?act=ST&f=116&t=1157344

At the moment, i'm trying to change my current 5-5-5-'18' to 5-5-5-'15', but strangely I already set the 'CYCLE TIME (tRAS)' to 15 in BIOS and it still shown 5-5-5-'18' in CPU-Z...
Can you tell my what is up bro??

Ok bro, I'm starting @ 2.2v as a 'control', and will tune it accordingly.
When u said nobody can tell, do you mean each person's PC is different in terms of their systems?
hence different systems have different demand in vDimm?, which then ultimately lead me to believe 'Reviews' of products(especially on DRAM) arent to be trusted 100%?
Probably they shouldn't be trusted 100% in the first place, but I need at least somewhere to begin with...so thanks bro for telling me different RAM have different vDimm requirements. I thought only processors are unique to one another.
With this somewhat seems insignificant little info is making me progress a lot atm.
Now my OC Rig is somewhat near completion.....for now.

Here my updated 4-4-412 settings @ 2.2v


I will Run ORTHOS or prime95 to obtain the result of its stability.
(currently had only been running on prime95 for just 30minutes)

I will post the results soon

Just in case if want to know, i Enabled mine, since LLC (Load Line Calibration) claims to improve V-drop directly, (its what the info written in my bios)
When I enabled it, my V-drop 'drop' around from 1.3v(bios) to 1.296v (CPU-Z). Have you ever try 'enable' that setting bro?

Haha, i'm thinking of start getting the Biostar Tpower45 (like yours) since my current humble mobo wont let me set the FSB past 423

When you mean PL, is it the same thing as 'Ai Transaction Booster' is Asus bios?


At the moment its 12, whats the recommended value should i go for if this what you mean is 'PL'?

Unfortunately my lame mobo (P5QL-PRO) can't do more than 423FSB, so i cant attain the 1:1 if i want to increase the dram freq.
My bios setup seems to be locked on 1:1 at the moment, so i cant fiddle around with the Dram frequency separately.

960mhz?? Can this moderate-overclocking HyperX do such figures without hurting itself at that mhz?

This post has been edited by JoBigShow: Sep 10 2009, 09:50 AM

Ok bro, I manage to find the neutral level of the PL, which is 12.
When i change the 'Ai Transaction Booster' from AUTO to MANUAL, it set the level to 5 with all the 'Pull in Phase' disabled, with BSOD'ed the system right away!
But good thing when 'Ai Transaction Booster' was in AUTO it shows the neutral level of PL(12),

IN the BIOS it's says the lower the number of the level, the more faster the performance.
So right now I insert the level 8 to start with, and will continue untill reaching borderline 'system instability'

ANYWAYS, what performance gains i'll get changing around the PL? Is it something that cqn be seen in everyday PC usage???

When i tighten the PL, do I relatively need to juiced up any other settings, for instance like NB voltage, Vcore, vDimm, etc. to cater needs for tighter timings on PL?
The stock/neutral PL is valued @12, and now I tighten it slightly to 8.
If I were to tighten it in the range of 3-4 and even less, like I inquired, do I need to amp up voltages to attain stability?
BTW I'm using Asus P5QL-Pro...

The most tighest level I can go is only 8,
tried 6, then 7, but the bios will not boot windows, so reverted back to 8
Yeah, do I need to tweak anything else to allow me to choose timings below 8?
Or is just that, the system already reaches its maximum tightest timing?

Still got a lotta way to go man
My FSB can hit only up to 423 MAX (@ 9x multipliers of course, 10x is too much for the proc to handle) on E7400, but kinda unstable. I'm curious to see how much can you push the TPowerI45's FSB. It's a fact that u'r TPower mobo can do some impressive FSB values..

Anyways, this thread has been "asleep" nearly a month, too busy with 'open houses' i guess...

That TRU 120 Ex does a pretty good job taming the heat of the E7400 on 1.56v+...
Man I think you'd broken the record of the 'highest mhz achieved' in this Topic alone
Are you gonna push the proc any further than 4.2ghz for the sake of benchmarking bro?

Your KVR shows that people dont really need HyperX to get the job done

@farscope,
How's it going man? have you OC your proc to 4.0ghz yet?

Nice
My idle temp use to be 30C/34C. (E7400@ 3.8ghz, 1.31v)
But now I'm using Windows 7, its 35C/39C.

It's weird though, what could W 7 have done to increase 5C on both of my cores...

I wish i have air con...

He said "....hyper tx2 plus a cheap casing....." The PMR aftermath must have gotten you all fuzzy ah bro?


Anyways hazairi, install another fan on that TX2... becomes twin fan
Or sell it in Garage Sale and get a RM100+ HSF minimum.
C-Zone @ LYP got AC Freezer Extreme for RM149. I'm using it, 3.8Ghz idle 35C/39C (30C/34C before using Windows 7) in the hot noon. Max 59C. (not bad for aircooling HSF)

If OC phailed, then no problem coz office property huh bro? Those office PC's are better off to be OC'ed anyways, they'll serve better purposes that way
My E7400 can OC safest with stock cooler is around 3.2ghz...
Anyways a 667mhz RAM give a more versatile OC presets if OC below 3.6mhz, with guaranteed stability... but of course u need 800mhz/1066mhz if you start wanting to OC above 3.6ghz.

E7500 is RM20 more than E7400 and E7500 is 0.13ghz more than E7400, the cache is the same, dunno why intel bother to produce this chip though, but I have the slightest faith that the Vcore is lesser than E7400, (the only purpose i can think off why intel produce this chip) this one gotta google up.

Good for OC'ing?? Why not..

Thats some nice Vcore, much lower compared to the E7400...as expected.
This can easily reach 3.6ghz with stock cooler..(although unrecommended)
BTW, whats your min/max temps when run Prime? I'm curious of how hot(or in this case, how cold) this E7500 chip runs...

I see you got 8G rams, running Vista 64-bit OS?

11 x multipliers
It's good news for them 667mhz rams owners, coz they can go for FSB 334 X 11 = 3.67Ghz with 1:1 ratio.
Only need to OC the ram a little and set the FSB @ 364 (x11) to get the magical 4ghz

Anyways, upgraded LCD bro?(1080p)

As you read in my previous post, I OC my e7400 to 3.8ghz @ 1.3v with Asus P5QL Pro.
Two days ago i got a new MB ( Asus P5Q turbo) and OC my e7400 to 4ghz, 5 hours stable on prime95 ( will upload screenshot later)

The thing is, it takes 1.41v to get 4ghz stable, while it takes merely 1.29v to get stable on 3.8ghz, thats about 0.1v difference for a difference of 0.2ghz on the e7400. But I'm in the process of trying a lower vCore for 4ghz by tweaking around the vNB (NB voltage), but it proves to be challenging.

I know what you guys will say, that the 4ghz isn't worth it, esp. for 24/7 usage. But i already accepted that the 4ghz is only for benching, 3.8ghz will be for 24/7 usage.

Bro, are you for real?!
I mean, I always feel tempted to enable those settings on 4ghz..
It makes sense that its almost perfect: to get the proc load at 4ghz and to get it to cut more/almost half of its clockspeed & multiplier while idle, this could be highly favorable regarding the e7400's lifetime..
But you confirm that is it recommended? To have both performance and life longevity

Btw I think its just urban legend that you need to disable the EIST and C1E when Overclocking the CPU...
probably because some people like their CPU OC'ed all the time, some people are just annoyed when the clock trottle back and forth on CPU-Z, some people speculate that it will cause instability, etc.
I will try this out later, but the motivation isn't there because I know NO ONE in LY.net try it and rave about it...
But because these days being green(power saving) and ecological is popular, I will heed to your suggestion pws, and enable those settings later

This post has been edited by JoBigShow: Dec 13 2009, 10:37 AM

Damn, the Speedstep™ only available if I set my vCore to Auto, so my dream of being 'green' and energy consuming at the same time would not materialize if OC over 3.5ghz (thats so far I can OC my proc under AUTO on the vCore), but still, I haven't check whats the actual maximum clockspeed I can achieved on AUTO, so this will be my new quest.
Yeah, I think OC should not just be about attaining maximum power, but has to be 'conceptually intelligent' and futuristic by balancing eco-friendliness and power..
I believe this concept should be the future approach of OC'ing, and the future is not near, its now.

Anyways, Hazairi, how you OC your proc?

I got a suggestion bro, you can set your fsb to 380 and OC the ram from 667mhz to 761mhz, and set the strap to '266', therefore attaining the 1:1 ratio.
But because I don't know what voltage you are OC'ing on 3.74ghz i can't say more, because its pointless to to OC to 4ghz if you exceed the Intel's spec of 13625v on the 45nm chip...

OR if you decided that you are a satisfied with u'r CPU OC'ing, you can move to OC'ing the entire system performance, by tightening/lowering the PL (performance level)
Because I think 3.74ghz is good enough for the E7400, OC any further(to 4ghz) yield not much difference in overall system performance, but tightening the ram, or lowering the PL does so much difference in system performance bro.

With my ASUS mobo'ed rig, this is natural if you OC.
I always turn off the wall socket every time I turn off the my pc (yup, I luv my rig )...and when I boot up, everything will turn on for less than 1 second, shuts down for 1 second or two, then boot up normally.
I experienced and still experiencing this for 5 months of two Asus mobo OC usage.(Asus P5QL-Pro, PQ5 Turbo)

Your inquiry sounds like something very normal to Asus mobo owners or any OC'ed pc rig, but is this something very recently occurring bro?
Meaning, is this the first time you actually turn off the wall socket and encounter this incident?

i suspect more to PSU, cz it onli happed if i turn off the wall socket....

Man, the more I read, the more natural it sounds when a PC is OC'ed.

This is because when you turn off completely, the CMOS will set the bios settings to default for safety reasons...and when you turn on the wall socket and power up the PC, the cmos will start with a default setting first for safety purposes, and when "all line is clear", it will shuts down immediately, then restore your OC settings and resumes operation.

I wish this is your solution , but the GC situation that you described is something I'm not familiar with, so I still keep my finger-crossed...



This post has been edited by JoBigShow: Dec 19 2009, 02:22 AM

Everybody is going green
There's should be a thread for 'UnderClockers United'

Hazairi, do you use Intel's Speedstep™ ? and the C1E?
If I'm on '24hours downloading-mode' I just set the proc to default (2.8ghz) and when 'Idle' the PC will "underclocked" to 1.6ghz (266 X 6) @ 1.027v, and I enabled the ASUS EPU-6 (setting to 'power saving')
while I'm at it.