Most of us with 450s can barely reach 500MHz, let alone do it on a 350. You would be quite lucky to reach 450MHz, but most probable for you is 400MHz or somewhere around there. The AMD K6X series, in it's current form, is not designed to run at speeds of 500MHz. Unless you got a really good chip, you are going to have to wait until AMD releases the .18u and copper-based K6-IIIs before you can hit 500MHz and beyond.
Try it at 450 and if you can reach that, be happy.
[This message has been edited by JGene (edited 08-16-99).]
Alphas are really good, but now I'd have to reccomend the Big-Mofo REX fan from 3dfxcool--that's the only fan out there that can best the Alphas. But make sure it can fit into your case, I've heard lots of people complaining about that.
Thank You JGene for informing me that cool cooling device - BigMofo REX !
But Somehow... I live in Malaysia... I hope I can buy it here... cuz my dad dont likes me buying stuff from the internet using credit cards... as he does not trust that security cuz Malaysia havent got a VERY GOOD security...
anyway Silicon Scream, 427 speed is by the bus speed 95.25x4.5 and it will be 428 if u divide by urself... I got that speed and it runs stable... somehow when I benchmark using CPUMark99 and compare to 100x4 = 400 ... the 400 is even faster then 427
Well cuz the bus speed is more important in perfomance... somehow my motherboard fried up when I tried to get 112 bus speed cuz someone tells me to add more voltage - I put 3.45 and it fries up... unstartable anymore... I am waiting for my dad to send it to the shop where I bought it (well it's far away from my house... takes 2 hours to get there)
I've ordered from 3dfxcool before, and I heard one guy who ordered his fan and he lived in England, so overseas shipping is of no problem to them.
As for your motherboard voltages, I am surely hoping that you are talking about a 3.45V i/o core and not the CPU core--which is only rated between 2.2V and 2.5V on K6-2s. Running it at a voltage that high is a surefire way to BBQing your chip.
link to info on the best k6-2 cooler out there, its huge but will cool ur cpu with great results, my 400 is at 450 and NEVER has crashed, got to 472 without any problems and 500 would crash only under heavy quake 3 benchmarking. u can buy the cooler for $19 at memman.com
Hey, I have had Problems underclocking AMD K6-2 300's at 250Mhz (83Mhz FSB). WinNT and LINUX are ok, but will Win9x start?...Hell no...
And, if I wanted to OC my K6-2 300 to 450 or so MHz, the only cooling I would recommend is liquid nitrogen. I will believe anyone if they tell me they overclock by 50Mhz on a 300Mhz+ CPU...but 150Mhz?
You are nuts. The cooling equipment, and the early replacement of the CPU you will undoubtedly be forced to do will be more expensive than a Dual PIII 450 system...