Overclock Celeron 390 Possible?

I found this guide for a 350, and was wondering if it would work for my 390 and if anyone had any other guides or had achieved it.

My processor info (ignore the left hand image, and writing, they are from a previous query)... picture here

Thanks.

 

Overclocking the 390 is possible. However you will need the Sonoma (915) chipset and not the older 855. One way to check is to go into Control Panel > System > Device Manager and check in System Devices tab and look for Mobile Intel 915.

The 390 runs at 100mhz FSB @ 1700 Ghz, using the pin-mod (as indicated in your guide) would run your system at 2.13Ghz, however the 390 may not be stable at this speed and your efforts will be wasted.

I would recommend actually upgrading your notebook to a Pentium M (Dothan) core instead as overclocking on those processors are more successful than celerons, and you would actually recieve a bigger performance/battery improvement over the Celeron.

 

Yep 915GM/GMS

I've considered upgrading my processor before (in fact I had a 3 page thread with help) but i was confused about getting the right socket/architechture etc.

What Penitum M's would I definately be able to use?

Thanks

 

The Dothan processors that is fully supported utilizing the Sonoma 533Mhz bus:

Pentium M 730, 740, 750, 760, the expensive 770, and the ultra expensive 780.

However, if you are interested in the overclocking (like I have done on my Sonoma based notebook) than you can look at the older Dothans rated for 400mhz:

Pentium M 715, 725, 735, 745

These are highly overclockable Dothans that you can run (success rate is lower as respectively the higher you go) using the Pin-Mod techniques. It's basically the same guide you saw for the Celeron, the same applies to Dothan/Pentium M processors and will make the processor run at 533Mhz instead of 400Mhz. The only reason why I would suggest this is if you want to top out your notebook by acheiving 780 speeds at a fraction of the cost. I currently have a Pentium 735 processor rated at 1700Mhz running at 2.26 on my Asus W3V, which I paid about $60 almost 2 years ago. It runs no different compared to an actual Pentium M 780, I have also undervolted the 735 so it runs quite cooler on idle.

 

Pentium M - Pin Mod Clock speeds and Pin-Mod success rate

715Stock: 1500MhzPin-Mod: 2000MhzSuccess rate: 99%
725Stock: 1600MhzPin-Mod: 2133MhzSuccess rate: 95%
735Stock: 1700MhzPin-Mod: 2266MhzSuccess rate: 70%
745Stock: 1800MhzPin-Mod: 2400MhzSuccess rate: 20%

Success Rate is an approximation, and based on stock voltages.

 

Wow thanks, makes it a lot simpler for me.

However I'm struggling to find any Pentium M's avalible in the UK.

(Would a P-M 755 also work?

Edit - guessing by the 2nd post a 755 would not)

Edit 2 - I have found a 735 and others on eBay, would you advise against using a used CPU ?

 

A used processor should not be a problem as long as it's fully working.
The 735 would probably work, but it will be a slight risk whether it would work or not with the pin-mod. It will require a bit of stability testing and if it indeed fails, you will then need to sell and buy another one(a hassle, but still cheaper than a 780 processor). I was quite lucky to be able to get a 2.26ghz capable 735 on my first try.

 

Ah right, so by success rate it is dependant upon the CPU itself.

Well I think i can get a 735 and 725 for ~£15 (~$30) so I may as well give em a shot, as both are claimed to be fully working.

Thanks for your help so far, btw I gave you rep

 

$30 is definately worth it, and you'll know you can get the $30 back(maybe even more) if you do end up selling it. So all you would be paying for is the shipping and your time to test them. You should definitely post back when you do get them

Good luck and happy overclocking!

 

oh BTW, drop me a PM anytime if you need any additional help...

 

Thanks will do.

 

hi
i have a question
i have a 915GM/910GMS
and i wil overclock it
how cane i do it ?
thx

 

Which CPU ?

And you need the i915 to overclock via pin-mod. Pin-mod won't work on the i910....

(And pls do not revive dead threads....)

 

I have pin modded a celeron 370 to 2.0ghz and then swapped it out with a pentium m 1.5ghz which runs at 2.0ghz. Not a single problem at all i would reccomend it.