Okay, my PIII 750 and Asus CUSL2-C will arrive today. If the heatsink arrives also, I'll be shooting for 7.5x133...

[Spoooon]

Where can I find information on voltage settings for certain speeds? For example, what would be a good starting voltage for when I try a 133 FSB? Also, have any of you guys had any luck with this particular overclock? Thanks for the info.

edit: I'm looking at a cpu database at overclockers.com. A lot of these guys are using 1.85volts. What's the highest you'd want to go on a PIII? Also, how tolerant are they to heat?

 

[RayEarth]

I too will be overclocking a retail PIII 750 on a MSI 6337 815E tommorrow, I am just waiting for the computer case to come today & I will work on it tommorrow, I plan on setting everything up at default & let everything run through post once to make sure all the parts function & then go into the bios & run it at 7.5x133 at 1.70v & bump it up if needed. My current cpu is a PIII 700@933, at 1st it worked at 933 & then became unstable & had to go down to 875 then with a bios update went up to 903 & after a couple of months at 903 with 6 bios updates is now back running at 933. Even if it doesn't work at 1ghz right away, I will lower it to the most stable speed & every month I will try it at a 1ghz until it works.

I think 1.85v should be the max to set your voltage at if your using just standard air cooling. I will be using the retail fan that comes with the cpu to overclock since my cousin hasn't decided to buy a better fan for it.

 

[Spoooon]

Ah, I see. I went ahead and ordered a PAl6035 with a Delta fan. I can't sleep anymore without the calming noise of my computer turned on.

 

[Liquidity]

I've got a P3-750 at 930mhz right now with an Alpha HSF (forget which model, check rigs in my sig for details) @1.85v. I think it's only being held back by my 256mb generic pc133 ram. It's rock stable so I don't think heat is an issue.

 

[Liquidity]

Actually I just tried and it posts fine at 133fsb, which is 1ghz. Windows hung when booting though. I'm not sure what's causing that, I suppose voltage?

 

[AndyHui]

If you are getting a new CPU, it should be the cC0 stepping. Its default vcore is 1.70 volts....try to get as high as you can with FSB before you start tweaking with the voltage. Only increase the voltage to stabilise an overclock.

Here's the usual stuff that I say to help people setup their CUSL2:

As soon as you finish installing the OS, make sure you install the Chipset inf Drivers.

ATA Storage Drivers are optional....they make a large increase in performance, but if you are going to use IDE CDRWs, I suggest avoiding them for the time being.

You have an SBLive? Then you need to do the following, otherwise Win98 won't restart/shutdown properly:

Enable LPT Interrupt Sharing in the SB Emulation Device in the device manager.

Disable the DOS SB Emulation in the device manager (optional).

Set IRQ 5 Reserved to Yes in PCI/PNP Resource Exclusion list in the BIOS.

Disable Legacy USB in the BIOS.


If you are not going to use the 2nd USB bracket, you might as well disable it through the jumpers on board.

If you are not going to use the 2nd serial port, disable that in the BIOS to free up an IRQ.

 

[aggressor]

"ATA Storage Drivers are optional....they make a large increase in performance, but if you are going to use IDE CDRWs, I suggest avoiding them for the time being."

Why should IDE CDRW users not install these drivers? I have an IDE Plextor, and I have a Cusl2-C now, just wonderin..(Havent tried to burn anything yet)

Also, I just ordered a CPU less then a week ago and it was cb0, not cc0 =(

 

[AndyHui]

If you have the ATA Storage Drivers, you will run into burning errors on IDE CDRWs, such as buffer underruns and non-detection of the CDRW itself in programs such as Nero.

If you get buffer underruns, one way to lower the probablity of problems is to reduce the maximum speed from UDMA to PIO mode 4 using the Storage Companion. It fixes it in most cases, but not all.