Problem with TB-C 1133Mhz!!

Bombastik

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Hi!

I used to have a AMD Thunderbird-B 1.1Ghz (1100Mhz/100Mhz FSB) and i unlocked without a problem, at first try, with a pencil lead.... it was an AVHA core

Now i've changed it to an AMD Thunderbird-C 1.1Ghz (1133Mhz/133Mhz FSB) and i unlocked at first try with the same pencil lead.... it's an AVIA core

But i have a problem though..:

I have an Asus A7V133 with the latest BIOS (1.0.0.5)

When i boot, the DEFAULT setting for the CPU on the BIOS is 8.5x100Mhz (850Mhz).... the multiplier is correct but the FSB isn't (should be 8.5x133Mhz)..

I can sucessfully set it at 8.5x133 with no problems, i can use ANY multiplier and ANY FSB, and i can get it up to 11.5x133Mhz (1530Mhz, doesn't boot at 12x) or 10x150Mhz (1500Mhz)...

Now, if it's completelly unlocked, why does it boot for default at 8.5x100?? The "i've bought a TB 850Mhz for a TB 1.1Ghz" doesn't work since it works at 1.5Ghz and before applying ASII i checked the A1133AVIALALAL3C tag on the core.....clues anyone?

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igottaknife

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Try a new BIOS revision. 100MHz is the default FSB if the board "smells" a problem. I had this problem with the A7V (oridinal) and after a BIOS flash I never saw it again unless I overclocked too far.

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FatBurger

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I had the same problem with my 1.2 AVIA. Well, it wasn't really a problem, actually. My Abit KT7a-RAID detected it as a 900 (don't remember the multiplier/FSB it gave), so I changed the settings, telling it manually that it was actually a 1.2. After that, no problems. Haven't overclocked it yet, and haven't run it much, but that seems to have fixed it.

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Bombastik

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I'm allready running the latest BIOS (1.0.0.5a).... the www.asus-com doesn't even have this one... only the previous (1.0.0.4)

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Bombastik

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IT's the same problem then...

Just as i said i CAN set it manually, but it bothers me that the mobo doesn't detect the cpu right

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FatBurger

Illustrious
I didn't know exactly what you meant.
Yes, I agree it's rather worrisome, but I haven't noticed any ill effects yet. I'll let you know if I do.

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peteb

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as far as I am aware, unless you tell it different AMD cpus are always detected at 100FSB. This is a feature, not a fault, so don't sweat it.

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Bombastik

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Then it's a feature!!

I had a TB-B 1.1Ghz and it was detected at 11x100Mhz (right) and now i have a TB-C 1.1Ghz and it's detected at 8.5x100Mhz (wrong, should be 8.5x133Mhz).

So it seems the default FSB is allways 100Mhz... can anyone confirm this???

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peteb

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btw - since going to bios 1005a this 'feature' has pretty much disappeared. Also faster FSB and thermal throttling for A4 (I am presuming) are supported.

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Bombastik

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I have the 1005a, so if it's an 'feature', it hasn't disappeared in mine, since it still boots with 100Mhz FSB instead of the 133Mhz FSB...strange

I dunno about the faster FSB, but it does have the thermal throttling feature (A4?!?!).



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kanute

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Yep, it is a feature. All athlons "c"'s that I have seen boot up with a default 100 mhz bus. I've probably seen about 100 of them in different speeds and they all do the same thing. I think it's almost like when windows throws ya in to safe mode or something. But don't worry, just change it and be on your way.

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Bombastik

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Cool!!!
But it's rather clumsy of AMD/VIA/Asus (which one has the
feature anyway) to have that.

I'm not complaining since i have it completelly unlocked, but i was worried that i had a faulty core.

Anyway it still is a nag because sometimes i reset the computer too fast (while booting up) and the BIOS thinks it's a multiplierXfsb bad combo so it resets to 8.5x100.......but since it's the "standard procedure" ... ok.. Thnx for the insight

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G

Guest

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My A7V133 has the same feature.

I think it just in case you put pc100 ram in it or have your processor modified.

If I was a Motherboard I would boot at 100Mhz the first time so I didn't mess things up...

but i'm not a motherboard... or am I?...


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Bombastik

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HEhehehe...

The RAM is not the issue here since its PC133 memory and it's the same i had before.

Unfortunatly i never did boot the thing without unlocking the CPU (mainly because of the AS2, I didn't wanna spend it just to see if booted ok and the disassemble everything again to unlock the CPU and spend some more AS2), so i don't know if it WOULD boot at 8.5x133 or 8.5x100....

Alas what is done is done, so the answer to that question will be unanswered, but my guess is that it would probably boot also at 8.5x100.


Has anyone ever booted an 133MhzFSB CPU without unlocking it with the A7V133 and had a correct default CPU speed setting?

Don't believe blindly in what you hear! - Play safe! Play hard!