Duron750@1000, newbie needs advice

[zision]

I posted a day or two ago about my dead Tbird 750. Well, I'm weak and went ahead and bought a Duron 750 to throw in here to keep me satisfied until I can afford/ feel the need for a DDR system and possibly an Athlon4. Anyway, I popped it in here and threw it on 7.5X133 and it posted at 1000MHz. I get checksum errors with voltage 1.750-1.800 and corrupt windows errors at 1.825-1.850. My cooling system consists of an Alpha PAL-6035, arctic silver, fong kai mid-tower case, 1 80mm intake, 1 120mm intake, 1 80mm exaust, and the PSU. CPU@750 idle temp is 32C and under load it swings up to about 43C. Case temp stays slightly above ambient. Running on an ABIT KT7A-RAID with Win2K.

Now, my questions:

1. What's up with I/O voltage, and what should that be set at?
2. How dangerous is running the CPU at 1.85volts?
3. What KT7A BIOS and VIA drivers are best for overclocking?
4. Other advice and tricks for getting this thing to boot and keep stable?

I may consider watercooling, as I like a quiet case and the fans I have now drive me crazy, I can't imagine adding more.

Thanks.

[David]

I think the max reccommended voltage for a Duron is 1.85volts - going over that could cause problems.

Newer BIOS updates are usually better. I have a cheap crappy Jetway mobo but when I took the BIOs from A03 and updated to A05 I got 400 extra 3DMarks (in 3DMark2000)
The latest VIA release is 2.3 I think. I didn't notice any difference going from 2.28 to 2.29. I'm not sure if the VIA drivers need to be the newest.

It might be that you can't keep ur CPU stable @ 1Gig. Try taking the Mult down or reducing the FSB to 130 if u can. Try 7x133 and see if u r stable at 933. If that is a no-go try upping the mult and lower the FSB. I find that taking out modems or SCSI stuff can make it more stable ( I have a fussy Modem - it can't take an FSB > 107). Good Luck

D650 @ 696
128MB
30G
WInMe

[zision]

My CPU is locked though, this is one of the reasons I want it at 1GHz. I've got the materials to unlock it, but if I can get it stable at 7.5X133, I'm happy.

[Hoot]

Keeping an eye on your CPU temperature, there's nothing wrong with upping the core voltage above 1.85 to obtain stability. That is, assuming your PSU can take it. Also, don't be afraid to take the V i/o up to 3.5 to stabilize your overclock. I run my duron 600 at 8x133. The 750s, historically, don't do as well as the 600, but they're darn close. I use a KT7A and the YH bios has served me well.

Hoot

[samuknow]

As nelly said you might want to back it down a bit to find where it is stable and then go from there. Some pci cards can't take a 133 fsb. Find a point where it is stable and load all of your new drivers and you may have to reinstall windoze. It could become corrupted when the system becomes unstable and you get errors. Good luck.....

[samuknow]

As nelly said you might want to back it down a bit to find where it is stable and then go from there. Some pci cards can't take a 133 fsb. Find a point where it is stable and load all of your new drivers and you may have to reinstall windoze. It could become corrupted when the system becomes unstable and you get errors. Good luck.....
sorry about the double post...........