Tom's Guide | Tom's Hardware | Tom's Games
![]() |
![]() |
![]() |
I need help overclocking. I have a v66m mobo but with a P2 350mhz running at FSB 100mhz. I enter my bios setup and i dont see anything for bus speed or multiplier. Can someone guide me to bypass bios to overclock safely? I have ample cooling (CPU-heatsink and fan; Case-3 fans) but im looking only to overclock maybe 50-66mhz higher.

I don't know much about ur board, but I've seen so many p2 boards that the following relates to just about any p2 board out there.
I have a p2 350 as well, the good news is that's it's a pretty good CPU still runs most of the things, I could play GTA3 on this thing! :)
The not so good new is it's overclockability. The P2 dechutes model had a locked multiplier so that's a big frown. The only way to overclock ur p2 would be to increase the FSB, front side bus, but doing so might cause ur system to be unstable.
u have 2 options now, go get the softFSB program that allows u to raise the FSB without touching anything in ur mobo. Use this tool very carefully, it's easy to get carried away. Go for small increments, from 100mhz to 103 then 112. Up to 112 it should be 99.9% safe. I tried over that a couple of times and I had HD corruption each time. A big pain in the butt.
your second option is to open up ur case and have a look at ur mobo. You should see little tables that describe jumper settings and what they get u. Play with the jumpers to get the amount of FSB u're looking for. Make sure ur computer power's off and that u touch the power supply unit's metal casing so that u don't release any static electricity on the mobo or any other microscheme.
Ur p3 multiplier is locked at 3.5x, so with a 112mhz FSB u can easily get 112*3.5 = 392mhz. Easily.
Depending on ur system, u might be able to reach faster speeds. U could try 124mhz fsb for about 434mhz, and 133mhz fsb for a total of 465mhz.
If u're feeling experimental and decide to go for the latter two. There is one thing u can do to diminish the chances of having a corrupted HD. Go in ur bios and in one of the settings for ur IDE device select a PIO mode 0, which means that ur HD should go the slowest possible which is about 3.3mb/sec.
Still u should be pretty happy with 392mhz, i just ran benchmarks and my p2 392mhz got better results then a p2 400mhz and came close to the equivalent to the oldest p3 :P
Have fun!
And as a side note, p2 350 is the suckiest p2 to OC since it's locked at 3.5x and it's already got 100mhz fsb. The 333 mhz p2 would be one of the best, has multiplier set at 5 and fsb at 66mhz so u could easily go over 500mhz which is a quite dramatic improvement.

also forgot to mention :
For extra system stability, take out all the pc100 ram u got and keep the pc133 only. For 112mhz u can use either, but if ever u decide to go higher...
This is just to cut down chances on having something really bad happen to ur computer. It's rare but it still happens, u don't wanna be part of the statistics :P

I have a V66MA in an Acer. When I still had a 350 Proc, I wanted to push it a little. This board uses dip switches for the proc setting, and only offers 350, 400, and 450. Mine would run perfectly at the 400 setting, but experienced problems at 450. There was a noticable speed gain at 400, too.
If you pull the side cover, the settings are on the inside of the side panel. For the 400, settings are: 1,2,3,4,5=on,on,on,off,on. I ran it that way for a couple years, then I picked up a 450 proc on ebay, and swapped them out.
jim f

Okay, I opened my comp, and i didnt find switch settings but i went along with the ones you gave me. I have a total of 6 switches, I put them in this order 1-on 2-on 3-on 4-off 5-on 6-on. I ran my computer and i dont see any difference. I went to system settings and it said 349MHz (same as before), and then i went to pcpitstop.com and tested my comp and its the same (349mhz). Did I change the right switches? it was originally 1-on. and right above "6" on the dip it says SD. Im not sure what I changed, but it has no effect at all. Please help, thanks.

top of the mobo; the only switches I think. Mine made a noticeable diffrence @ 400...not earth shattering, but quicker opening windows, for example. Try the 450 settings: 1on, 2off, 3on, 4off. 5 & 6 both stay on.
Maybe the processors are not all the same. Mine is an old one.
Good luck, and happy New Year!
jim f

Okay, I tried that but it still says 349mhz. Is there any other way I can ovreclock this? SoftFSB doesnt work cuz it doesnt support my mobo, or at least i dont think it does. If it is supported please tell me the settings I have to use. Again, its an Acer v66m w/ P2 350mhz.

I just looked on ebay, and it looks like you could get a PII 450 proc for $30-40. That is what I did. That would get you 450, and it works pretty good. Oem boards just aren't made to play around much. I must have just been lucky.
I used that Acer quite awhile, but just bought a barebones Dragon Plus w/Athalon 2000+ from Tiger direct. Goes like he77, but can't get the sound up. Something else to do...
jim f

BTW: forgot to mention that I checked out a link that somebody posted before. According to that link, the switches actually change the multiplier. Hence: 350 setting = 7/2, 400 = 4, 450 = 9/2. (7/2=3.5...3.5*100=350)

![]() |
![]() |
![]() |

This post is quite old and has been locked from receiving new replies. Please create a new posting instead.
| Ads by Google |