Asus Av7133 and TB 1.2G/266 voltage problem

[MrMagic]

Hi,

I've just bought an Asus AV7133 with a Thunderbird 1200 GHz 266 FSB and I think I'm having problems with the core voltage.

When I first booted up the system, it came up at 900 MHz (9 x 100). I then went into the BIOS and set the FSB to 133. Unfortunately this resulted into a siren sound.

I was able to recover from that using the JEN jumper. However, I cannot get the system to boot at 1200, either with jumpers or in jumper free mode. My L1 bridges were already unlocked, so I don't think my CPU is locked at all.

The core is an AXIA one, the A7V133 is rev. 1.05 with BIOS 1004.

Personally I think the problem is with the core voltage. Regardless of how I set it up, either with the VID jumpers or in jumper free mode, it always stay at around 1.5V. This is reported in the BIOS as well as by MBM 5.05. I think the default voltage for a TB 1.2 GHz is 1.75 isn't it?

Does anyone have an idea why I can't get the correct core voltage? All the other voltages seem to have the correct value.

Thanks.

 

[heng1028]

i set mine to auto for my tbird1.13gig@1.4gig

 

[MrMagic]

It was set to auto when I started, but that gave me 1.5V too, that's why I started to experiment.

 

[MrMagic]

Hi again,

Did some more experimenting and found out that I could get the CPU up to 1150 MHz as long as I keep the FSB at 100. As soon as I try to set the FSB to 133 it stops working, even 6.5 x 133 = 866 does not work!

Also, I still can't get the core voltage set to anything else but 1.5V.

I'm beginning to suspect the Voltage Regulator Module of my A7V133 is broken.

Anyone had any experiences with that?

 

[nealh]

You need to set Vcore to User define and then change it to 1.75v ...default... also make sure the mobo is set to jumper free mode by the jumpers...

When I set my core voltage...the auto is at 1.75v ...when I go to user define mode the voltage if it started at auto setting always lists 1.5v as starting point but I know by going to hardware monitor in the bios the voltage was at default of 1.75...so do not be mislead that your core voltage is at 1.5v...

You are saying the mobo will not recognize the the chip as 9x133 for 1200 on initila boot ...that seems strange...

Couple things you could also try...downgrade bios to 1.003 to see what happens..although I would just try to reflash 1.004 first and clear the CMOS....

Are any of my suggestions helpful???

 

[Kusta]

I have the exact same combination like yourself and I do not have problems at all. Although, back than I was suprised when I discovered that motherboard detect my CPU as 900MHz. After I set jumpers it works flawlessly with 2000.
It seems to me that is something wrong with your motherboard. Why don't you return it for new one.

 

[Regalk]

Here is an experience for ya all. I had a lot of problems booting or even restarting. I connected L7 and L1 bridges. Just refused to boot even at higher voltages. Tried PS switch on off on off etc etc. - It makes an attempt but just cuts off. Cleared Cmos still no go.
Then I noticed the Vcore jumpers on the board itself and we (2 of us) fiddled with various settings and all of a sudden it started to boot (I believe we set it at 1.80v or somthing like that and left it). We also played with the Jen jumper and the dips on and off - all I know iot was not supposed to work the way we finally set it but it did - go figure. That's Asus for ya.

 

[MrMagic]

nealh:

When I say the core voltage is at 1.5V I do mean the value the hardware monitor gives out, not the value that it is set at. Regardless of how I try setting the voltage (jumpers or BIOS), it just always stays at about 1.5.

The fact that it initially boots at 9 x 100 is probably the way the Asus board works. It just comes up with a default FSB of 100.

I did try using different BIOS versions. The board came with 1002-A and I also tried 1003-A, 1004 and 1004-2D Beta. All with the same result unfortunately.

Kusta:

Thanks for letting me know the combination should work
I'll probably be returning the board to the shop sometime this week, since I really do think something is wrong with it.

 

[nealh]

Very interesting that mobo hardware monitor is registering 1.5v...clearly something is wrong...are you sure all the jumpers on the mobo are ok..none are switched..especially the voltage jumpers??

Sounds like this mobo is on it way back for an RMA