overheating/voltage problems on jetway 920BF (SiS 620)

[pete102]

I've just bought a Jetway 920BF and a celeron 766 processor.
Until the whole lot arrived I wasn't even thinking about overclocking, and the unit was only for a second machine, so the specs were ok...
After fitting the processor with stock heatsink and some arctic silver compound I booted up, installed win98 and all the apps that came on the motherboard CD

The healthmonitor shows a cpu voltage of ~1.93v and a temperature of around 52c (125.6f)

Can anyone recommend how I can go about lowering the voltage (there dosent seem to be any jumpers or settings in the bios)

After running it for 10-15 mins I decided to see what it would overclock to, I got up to 83MHz FSB and bottled out ;o)
Running along nice and smooth, no bsod's at 954MHz although under load it did heat up a little more, to around 58c (scary... I was ready to shut it down)
Is the temperature/voltage going to be a problem, and if so, what should I do?

pete

 

[outhouse]

You need to find out what your default CV is for your CPU check the CPU database and see what others are running theres at. One thing no matter what you do you need to get your temps down , stock HSF's are not good for overclocking if you really want to enjoy a good overclock then you will need a good HSF and maybe a few case fans to keep ambient temps down as your running way too hot.

 

[It_The_Cow]

52 C seems about right for a Celeron with a stock heatsink. Consider lapping it or replacing it. Don't even try overclocking anymore until you resolve this problem

 

[pete102]

outhouse (Aug 01, 2001 08:48 p.m.):
You need to find out what your default CV is for your CPU check the CPU database and see what others are running theres at. One thing no matter what you do you need to get your temps down , stock HSF's are not good for overclocking if you really want to enjoy a good overclock then you will need a good HSF and maybe a few case fans to keep ambient temps down as your running way too hot.

That's the problem... the CV is listed on the CPU as being 1.75v but there is no voltage adjustment on the board at all, and the retailer says the board is suitable for this processor

pete

 

[outhouse]

pete102 (Aug 02, 2001 05:47 p.m.):

outhouse (Aug 01, 2001 08:48 p.m.):
You need to find out what your default CV is for your CPU check the CPU database and see what others are running theres at. One thing no matter what you do you need to get your temps down , stock HSF's are not good for overclocking if you really want to enjoy a good overclock then you will need a good HSF and maybe a few case fans to keep ambient temps down as your running way too hot.

That's the problem... the CV is listed on the CPU as being 1.75v but there is no voltage adjustment on the board at all, and the retailer says the board is suitable for this processor

pete

well the retailer is lucky that you have not fried anything and he or she really does not know what there talking about if your CPU was hotter you could fry it because the CV the MB is dishing out is to high compared to the default 1.75 of the CPU Well anyway this can work very nice for you if you get a better HSF to keep your CPU cooler the reason its going to be toward your advantage is now your going to have a little room to play with while overclocking if you were stuck at 1.75 its certain your overclock would not get that high, Keep working with your overclock try to improve case temps as well as CPU temps as i said and you may even get more out of your overclock, theres allot more to a good overclock then raising CV and FSB cooling is the key, well i think your going to be fine with your CV but there is a small chance that you could fry your CPU as every CPU will react differently to high CV do not get worried but whenever you overclock a CPU you are gambling and the higher you run your CV the more risk you put on your CPU. For now i would look at the CPU database and see how many others are running with 1.95 if there are not that many then you may be gambling a bit more then you should but if theres quite a few in there then you can rest your nerves a little bit and kick back and enjoy but you will need a new HSF before i would get comfortable. Also since you new to overcloking read through are tips section and get yourself a good background and your PC will thank you later.

 

[pete102]

Thanks for the info, although I'm not new to overclocking, was just wondering about the jetway board, if maybe the temp sensors werent accurate, as when I put a deskfan on full beside the open side of my case, the temperature didnt seem to change.

pete