Interesting Find....better PS = better overclocking....

[Souka]

On my secondary system, which is a celeron 366 @550 2.1V, had a 2yr old Enlight 250W PS/Case.

System ran stable, but I couldn't get it above 550mhz with anything but total crippling of my system (no UDMA, L2 & L1 disabled, etc.

PS "went bad" when I spilled some Coke (soda, not the white-stuff ) on it. I took a drink from a can of pop, but when I leaned back over the case, I guess I hadn't closed my mouth! duh...). Pop Pop...Fizzz *CRACK*. Too PS apart...lots of black scotching around the capacitors...

Ordered an "Antec PP303X 300W POWER SUPPLY F/ATX SYSTEMS 3.3 VOLT F/PROCESSOR" (has a Thermaly controlled fan) from good ole Buy.com. Once I got it, installed, I was up and running. Much quieter than my Enlight fan (replaced original fan with a 3-pin Sunon BB fan so I could watch the RPMs...)

Well, decided to play with O'clocking again. Put the BUS to 112mhz....bingo 616mhz...nothing crippled.

Pushed bus to 117mhz, yep...644mhz.
Pushed bus to 124mhz...boots, but locks. Upped voltage to 2.2v...bingo 682mhz.
Tried to go faster, but unless I disabled the L1/L2 cache post, then lock at best.

Booted into Win98SE...ran Q3 quaver and demo001 looped overnight....still running fine in the morning. Cool eh?

System setup:

aBit BX6-r2
PPGA Celeron 366
Matrox G200 AGP
Western Digital 6.4GB UDMA/33 5400rpm
SoundBlaster 16 PCI
4x4 NEC CDROM (4 disk changer)
3.4" FD


Pretty Neat eh?

 

[HD2GO]

This shouldn't be surprising. PS is where the "juice" that CPU and all your electronics components drink comes from. Bad juice is definitely not good.

 

[jinsonxu]

Hey congrats! That's a pretty cool overclock you've got! A new PSU did it? Hmm....

 

[Souka]

The Elight, although a good PS, voltages were always a tad off. Replaced it after the first week, but replacement unit was still off on a couple of things...

Biggest, and probably most important was the variance...that is, fluctuation.

Enlight varied a lot more than my new Antec PS......stable power = stable system

Voltage reading came from BIOS setup menu. Checked them once with my Fluke...pretty accurate.

Oh yeah...I'm not saying go buy a new PS...just never really hear about powersupplies in overclocking...other than "...get a bigger one..." Hell, my secondary system probably could run on a Dell Optiplex 140W PS just fine.

 

[RoadRuner]

you probably raised your vcore voltage with a different power supply.

ie my current ps runs a7v 1.85V at 1.92V, my old one did 1.85V @ 1.85V

more jooce = more speed

 

[Davegod75]

not surprising. power supplies are a key element. Trust me, get a good power supply, they can make all the difference in the world when it comes to overclocking.

 

[Toro 45]

Wow 682 out of a 366,what kind of cooling are you using?I've never heard of anyone going that high on a 366. Very few ever went above 625,mine included.Got some screen shots?
Toro

 

[EvilDonnyboy]

I wish I paid 30 bucks more for a better case/ps. I could probably push my 650E further.

 

[Rifter]

screen shot would be nice, i really dont see how a 366 can go that high, mine is pretty good and still has problems abouve 625 but will do 625 stable if its not to hot in my room.

 

[Ausm]

I think it is a well known fact...glad it worked out for you.

Ausm

 

[ICatastrophyI]

What would be a good psu to buy?

 

[cdrakejr]

Take a look at Anandtech power supply review.

Never understood why someone will spend hundreds of dollars on cpu, drives, video cards and then try to save $10-20 on the case/power supply and then complain when things don't work right.
Something like buying a Corvette and then trying to save by using lowest grade gas. :frown:

 

[tabernack]

I just got my new Enermax 350w and what a difference. I was able to drop my voltage down .05 and get the same stability. DON'T skimp out on the PSU, especially in an overclocked system.