Wow, what a chip!

S

Siggi

Guest
I have the E8400 running stable at 4ghz, OC'ed from 3ghz. I had to play around with various voltages. But bloody hell, V-core at a measly 1.3v and max temps under Prime95 are 53c and 47c respectively on the cores. :faint:

I haven't run OFF on it yet, I'll try it later and report back.

£143 I paid for the 8400. The 8600 is £230 from Overclockers, for 300mhz more. When the 8400 can OC to 4ghz? HAR HAR!

:jump:
 
I seem to be unlucky. When i built my last computer, everyone was raving about the E6600 going 3.5+ on air and i got one from a poor batch that only went "meh" to like 3.1 ghz.

Now everyone was also raving about the Core i7s going to 3.8 or 4 on air, and i again get one from a poor batch that only barely does 3.1 ghz...

AAAAAAAARGH :)
 
I am runing a AMD 8450 triple core. What could i clock it to safely?
 
That E8400 (if it's the EO version) is pound for pound the best bang for your buck Core 2 Duo you'll find. Great overclocker on the right board (and in the right hands). Runs nice and cool without having to resort to a mammoth sink. Happy to say my e6850 will run pretty much neck and neck at the same clock speeds with it even though it's the older 65nm process. Won't overclock quite as high, sucks more voltage and runs a fair bit warmer, but you can compensate for temps with a decent cooler. Been running it in everyday use at 3.6 now for close to a year. No problems whatsoever.

A lil' comparison of the two here: http://www.legionhardware.com/document.php?id=714


Think my next step up will be to the i7. Might have been sooner than later if I hadn't just forked out 2 grand to save one of our kittycat's 9 lives. Kitty cardiologists are not cheap. Think I'm comin' back in my next life as a vet.

Great choice of processor there, mate. Well done. Glad it's workin' for you! Just don't get silly and cook it trying to get to 5 Gig on air.....lol.


Cheers,

Parky
 
Parky said:
That E8400 (if it's the EO version) is pound for pound the best bang for your buck Core 2 Duo you'll find. Great overclocker on the right board (and in the right hands). Runs nice and cool without having to resort to a mammoth sink. Happy to say my e6850 will run pretty much neck and neck at the same clock speeds with it even though it's the older 65nm process. Won't overclock quite as high, sucks more voltage and runs a fair bit warmer, but you can compensate for temps with a decent cooler. Been running it in everyday use at 3.6 now for close to a year. No problems whatsoever.

A lil' comparison of the two here: http://www.legionhardware.com/document.php?id=714


Think my next step up will be to the i7. Might have been sooner than later if I hadn't just forked out 2 grand to save one of our kittycat's 9 lives. Kitty cardiologists are not cheap. Think I'm comin' back in my next life as a vet.

Great choice of processor there, mate. Well done. Glad it's workin' for you! Just don't get silly and cook it trying to get to 5 Gig on air.....lol.


Cheers,

Parky
Click to expand...

4.5ghz has been done, but at 1.4v and that's into it's danger-zone, though that seems to have been with the early ones. Mine is indeed an E0 stepping (wouldn't have bought it otherwise).

I ran a QC a few minutes ago. I know QC isn't CPU bound, and it might have been wishful thinking, but I'm sure I was getting around 10fps extra across the board. I'll see how it performs in a campaign mission tomorrow. A min 24fps instead of 14fps and I'll be a very happy bunny.
 
UK_Widowmaker said:
Asus P5N-E SLI
Click to expand...


From february 2007:

"When testing the board last month we were limited to an early revision of the BIOS and while it did deliver in the end, getting a stable overclock was not easy. The BIOS appeared to have the same problem as that of the more expensive Striker Extreme. This problem restricts DDR2 memory modules from operating well over 900MHz without compromising system stability. Nevertheless, we were able to run our E6300 processor on a 500MHz FSB resulting in a 3.5GHz total clock frequency. This is the fastest frequency this processor has reached on any motherboard, so needless to say we are pleased with the P5N-E SLI. Unfortunately, running the DDR2 memory below 1000MHz is not ideal, but we have found no way around it at this stage. We still hope ASUS can deliver soon a new BIOS that can address the issues we faced when overclocking."

Personally I've had nothing but grief with NForce chipsets and I don't like them. Apart from anything else they run way too hot at stock for my liking, never mind OC'ed. But some people swear by them. You could try a new CPU in yours and if it doesn't work out get a new mobo for it.
 
Siggi said:
From february 2007:

"When testing the board last month we were limited to an early revision of the BIOS and while it did deliver in the end, getting a stable overclock was not easy. The BIOS appeared to have the same problem as that of the more expensive Striker Extreme. This problem restricts DDR2 memory modules from operating well over 900MHz without compromising system stability. Nevertheless, we were able to run our E6300 processor on a 500MHz FSB resulting in a 3.5GHz total clock frequency. This is the fastest frequency this processor has reached on any motherboard, so needless to say we are pleased with the P5N-E SLI. Unfortunately, running the DDR2 memory below 1000MHz is not ideal, but we have found no way around it at this stage. We still hope ASUS can deliver soon a new BIOS that can address the issues we faced when overclocking."

Personally I've had nothing but grief with NForce chipsets and I don't like them. Apart from anything else they run way too hot at stock for my liking, never mind OC'ed. But some people swear by them. You could try a new CPU in yours and if it doesn't work out get a new mobo for it.
Click to expand...

Yeah..I mean TBH I am quite happy at the moment with how it is..but as is usual, the time will come for change.
I always tend to buy the CPU and Mobo at the same time..and pass the redundant kit down to my Son...seems to work for us
 
Question:

How much dose over-clocking reduce the MTBF of the chip in general?

WF2
 
Parky, even though I don't really need it... this I7 920 is unreal... I am running the new BIA: Highway to Hell at full screen all sliders with no FPS issues.

I'd like to play around with the OC options on it. How is it done? Any websites. I've never OC'd before.

Thanks,

OvS

PS... thanks again for a great system.. it rocks... OFF is running at min 25-30, all the time... usually 50-60 FPS is the norm, even in a furball.
 
womenfly2 said:
How much dose over-clocking reduce the TBMF of the chip in general?

WF2
Click to expand...

So long as one doesn't go silly with the volts and/or allow too much temp the chip will last a lot longer than one's need to replace it in the normal course of events anyway. Not all chips are equal of course, but in general they can take a fair amount of abuse (volts beyond the manufacturer's spec etc). Mine's nowhere near the danger-point.
 
Womenfly,

overclocking within the physical limits should not reduce MTBF at all. When you stay at least 30 °C below the Tjmax temperature limit of your CPU if and do not set the voltage too high you should be safe. A too high voltage can cause so-called electro migration within the silicium and will harm your CPU. And the longer it goes the more harm will be done until the CPU is outside their tolerances and will stop working.


James,

you need to look at your mainboard because the most part of overclocking is dependent on the mainboard and not the CPU. Mostly the mainboard is the limiting factor. Therefore I advise you visit forums and threads dealing with the mainboard you have. A good place would be the forums on xtremesystems.org. I think there are skilled people especially the guys dealing with the ASUS Rampage Formula and Maximus Formula. They even take the BIOS from one board and run it on a different type of the same manufacturer to get the best performance. But I would not recommend that. You need a lot of reading and mostly you need to find out what your own mainboard and CPU configuration does. People can give only general advices your mileage may vary. For example there are some mainboards out there that can drive the FSB up to 550 MHz but the some of the same specimen can not. Depends on the tolerances of components. Also with the CPU some of the same specimen need less voltage than others even with the same factory revision. Depends on the production batch.
 
BIA: Hell's Highway at full screen all sliders with no FPS issues.

God..that game is just the best FPS ever! (imho)

It's like playing the lead role in Saving Private Ryan...absolutely awesome!
 
On the o/c subject I have a

Core2Duo E6850 3.0Ghz CPU, Arctic Cool 7 Pro, GIGABYTE GA-N650SLI-DS4 Motherboard, 4x 1GB Corsair 800 Mhz DDR2 RAM, 2x 500GB SATA 7200 RPM HDD, 2 x 8800GTX SLI Graphics, 24'' ACER Widescreen TFT, WINDOWS XP PROFESSIONAL 750W DUAL SLI PSU,

Does anyone know if and how i might o/c this ?

best

nio

:wavey:
 
nio said:
On the o/c subject I have a

Core2Duo E6850 3.0Ghz CPU, Arctic Cool 7 Pro, GIGABYTE GA-N650SLI-DS4 Motherboard, 4x 1GB Corsair 800 Mhz DDR2 RAM, 2x 500GB SATA 7200 RPM HDD, 2 x 8800GTX SLI Graphics, 24'' ACER Widescreen TFT, WINDOWS XP PROFESSIONAL 750W DUAL SLI PSU,

Does anyone know if and how i might o/c this ?

best

nio

:wavey:
Click to expand...

Google your CPU and mobo, including the words "overclocking" and suchlike. Google just "overclocking" in fact, there's more useful stuff out there than one can shake a stick at.
 
Performance update on my new CPU in campaign mode...

Where I was getting between 15 to 18fps while sitting at the airfield before takeoff, looking around, I'm now seeing no less than 26fps.

Approching the front I was getting as low as 14fps before, now I don't see less than 30fps.

I've not had a combat in campaign with the new CPU yet, but so far it's looking like a huge improvement. Average seems to be around 45fps and I've seen spikes of 70+. :)
 
Siggi

I am obliged to you.

My system runs fine and I do not wish to overstress it but I had always thought it may be possible to o/c it slightly and reap some tangible benefit in performance etc.

I will do as you suggest.

If anyone has a similar set up and has o/c'd it, I should still be interested to hear from them.

best

nio

:wavey:
 
nio said:
Siggi

I am obliged to you.

My system runs fine and I do not wish to overstress it but I had always thought it may be possible to o/c it slightly and reap some tangible benefit in performance etc.

I will do as you suggest.

If anyone has a similar set up and has o/c'd it, I should still be interested to hear from them.

best

nio

:wavey:
Click to expand...

Your CPU should be good for up to 3.6ghz, but the mobo is rather mediocre (up to 3.4ghz). That's after a quick google.

You would see definite FPS improvement going from 3.0ghz to 3.6ghz.

If you have the money splash out on a new mobo, CPU, heatsink & fan and faster RAM (if yours is under 1066mhz). I can only recommend that with which I've had remarkable success:

Asus Maximus Formula II mobo.
E8400 CPU (E0 stepping).
1066 RAM (Corsair is good stuff).
A good £30 to £40 heatsink & fan.

And decent airflow through the case. :)

You're not that far from me, so if you fancy it bring the gubbins to me and I'll do the entire job (it's what I do for a living, but I won't charge a fellow dog-fighter a bean ;) ).
 
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