A7V333 OVER1 Overvolt help

[stigweed]

I tried using the OVER1 jumper to allow VCores above 1.85 but the BIOS voise says "CPU voltage out of range", and in the BIOS only the old Voltage ranges are availible - and I can happily run 1.85V without OVER1 but as soon as I try and boot wiht OVER1 even as low at 1.70, it crashes before windows loads (as well as saying voltage out of range)

Does this OVER1 add a constant number to those voltages or is it supposed to open up a higher range? On Spode's aBod'es article it says it should open up voltages upto over 2V. Confused. Help!

[Allan]

Hey, I think I can help you on this one.

When using the OVER1 jumper you actually add 0.30 volts to the Vcore settings in BIOS. So, setting bios to 1.70 and using the OVER1 jumper, you actually end up with 2.00 V.

However, the BIOS won't detect this right, and it will show 1.70 in hardware monitor - but you can load MBM5 and see what the actual voltage is..

If you want to avoid the error message at boot up, you need to disable "halt on errors" or something like that.

[stigweed]

Cheers. In that case, it looks like it isn't going to work because I tried it at 1.70 (+0.3=2.0) and it crashed at the windows login window. I'll have another go tonight.

[Allan]

Originally posted by stigweed
Cheers. In that case, it looks like it isn't going to work because I tried it at 1.70 (+0.3=2.0) and it crashed at the windows login window. I'll have another go tonight.

Have you tried 1.65 + OVER1?

I'm currently running my Tbred 1700+ 1466@2112 MHz at 1.60 + OVER1. I've tried higher, but this is just about all my cooling will allow atm.

[stigweed]

the lowest my bios allows is 1.7 +OVER1. I've just tried that and its booted OK. I think it was the temp that made it crash before. heading past 53C when it used to be 49 at 1.85V

[stigweed]

as i was typing that, it was still heating up. As it hit 56C things started crashing. had time to shutdown safely as it hit 57C. Disabled the OVER1 for now.

However, I now know that I could break the 1.89GHz stability wall. I'm just going to have to go shopping for a new HS+F combo. The original Volcano 7 has served me well, I'm surprised it kept it below 50C (usually 20C above ambient case temp) at a 490MHz Overclock. But with the knowledge I can take this CPU further, I have to take it to the next level.