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TB 1,2GHz AXIA 266Mhz won't run with 133Mhz FSB

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Anonymous
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June 21, 2001 7:38:14 AM

Hello! My problem is that a few days ago I bought a AMD Thunderbird running@1,2Ghz. here is the processor code:A1200AMS3C AXIA! AXIA Rules!!!
The problem is that it won't run with 9x133Mhz, it will boot up and
just before the desktop shuould appear it hangs up.
But it will work just fine if i run it at 12x100Mhz, why?

My config is:

AMD TB 1,2Ghz + Cooler Master
Abit KT7A-RAID (updated with latest bios version ZT)
RAM 2x256Mb (Green) PC-133
Display adapter: Daytona Geforce2MX
Hard disk: Samsung SV4084H/D 40Gb
Power supply: 250Watt

I've tried all the normal testing procedures...but i can't figure it out!
I've even tried to boot up with fail-safe bios setups
Should I go change the DIMM's that I have and try again...

Thank you in advance!
Anonymous
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June 21, 2001 8:42:57 AM

Im not familiar with your motherboard, but if it has jumpers to set the FSB,(like mine does) you might want to make sure its set to 133.

<font color=blue>Your Mouse moved. WINDOWS NT must restart for changes to take effect. Restart Now? [OK]</font color=blue>
June 21, 2001 9:20:56 AM

I had a same situation like yours. My TB 1000C at 7.5*133 hanged when it boot to Windows desktop with my Quantum ATA66 27G HD, but it works fine with my IBM 60GXP 40G ATA100 HD and I'd even be able to overclock to 1200MHz (9*133) right now.

:smile: Good or Bad have no meaning at all, depends on what your point of view is.
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Anonymous
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June 21, 2001 9:44:09 AM

Thanks! I have a 15Gb IBM deskstar... i think i'll test if
the same hangup doesn't appear with it...

Speed Kills Use Windows!!!
June 21, 2001 2:12:18 PM

if possible, you need to set the multilplier by jumper.
according to anandtech.com, most socket A mobo's run at default multiplier @ the set fsb for a moment before the softmenu takes over, so in essence, you're having to POST at 12 x133 before it can set the multiplier to a lower setting.

----------------------
Independant thought is good.
It won't hurt for long.
June 21, 2001 3:38:26 PM

Quote:
you're having to POST at 12 x133 before it can set the multiplier to a lower setting.

No it set at FSB 100MHz as mine (jumperless mode on <b>A7V133</b>) is 1000MHz was set 10*100MHz.

:smile: Good or Bad have no meaning at all, depends on what your point of view is.
June 21, 2001 3:54:18 PM

nevermind...
I was asleep when I posted my previous response, I thought you were trying to use a 100mhz fsb cpu at 133 for some reason...

----------------------
Independant thought is good.
It won't hurt for long.
June 21, 2001 5:50:17 PM

You should have a 300w power supply. I don't know if that'll make the difference, but it might.

------------------------------
Apple? Macintosh? What are these strange words you speak?
June 21, 2001 8:13:09 PM

Here's my 2 cents...
300W PSU is a must.

Bios settings:
Make SURE you are NOT running your dram clock at "Host + PCI"...because at 133FSB this would be 133+33 or 166mhz on the dram clock....which would no doubt cause the lockup.
Set DRAM clock to "Host clk" the 133FSB.

Make sure the other bios timings aren't locking you either.
Don't go with fast cpu command decode, or enhanced chip performance, or dram timings set at turbo mode, or fastwrites, or dram4k page mode, until you know it's safe to try theses settings....make sure all this stuff isn't the problem first.

Core voltage should be set around 1.75v If it gets lower than that you may have a problem booting. 1.80v should be okay as well.

Make sure you're not overheating...boot at 100FSB and get a
temp reading for us.



I'm not in touch with my feeings, and I like it that way!<P ID="edit"><FONT SIZE=-1><EM>Edited by bud on 06/21/01 02:15 PM.</EM></FONT></P>
Anonymous
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June 22, 2001 2:12:28 AM

i had similar probs with my t/b 1000, as soon as i went to 133 fsb - lots of probs.

new case with new powersupply (300/180) = smiles






however, we all start at the end and finish at the begining
June 23, 2001 8:44:36 AM

Hmmmmmmmmmmm............. there are some Axia 1.2 TBs that are 100 and not 133. Bios upgrade my do the trip, but the 100 are not guarentied*sp* to run at that speed. I would make sure that your cpu is cert to run at that speed.

MeldarthX
June 23, 2001 9:21:25 AM

Note the "C" at the end of "A1200AMS3C" which was in his first post. Oviously that C means it is a 133FSB CPU not a 100. I'm sure you just overlooked that :-)

I am just wondering why it would produce less heat at 12x100 than 7x133? I mean some of you said check the heat, and it post at 100 but not 133 so it must be cooler at 12x100, which I don't understand. But I don't know what creats all taht heat anyway so it would be nice to hear the reason.

Crap, all the good ones are already taken.
June 23, 2001 10:24:01 AM

theres a chance you've got the B tbird which is supposed to run at 100/200 fsb... that could be a problem im not too sure on overclocking a B tbird by running at higher fsb... by a third... thats a huge fsb overclock and im not too sure of the consequences...

you do not strengthen the weak by weakening the strong
June 23, 2001 10:24:38 AM

theres a chance you've got the B tbird which is supposed to run at 100/200 fsb... that could be a problem im not too sure on overclocking a B tbird by running at higher fsb... by a third... thats a huge fsb overclock and im not too sure of the consequences...also the power supply is a bit low so that could be a huge problem for amds over 1ghz a 300w supply is recommended...

you do not strengthen the weak by weakening the strong
June 23, 2001 12:17:03 PM

*grumbles*......I really hate these new boards sometimes. Actually I was pointing out that, he may of thought he was being sold the C.....when he actually got the B. Its happened in the past.

Bs don't really like don't 133, you can get most of them to hit that speed, but there are some that just won't post. But we also need some more info also.......like if he's getting any beeps......:) 

MeldarthX
Anonymous
a b à CPUs
June 25, 2001 1:21:48 PM

Here is the processor code! A1200AMS3C <--C-type
meaning 133/33 FSB! It's posts nicely but it hangs when windows desktop should appear! No problems with 100/33FSB!

Speed Kills Use Windows!!!
Anonymous
a b à CPUs
June 25, 2001 1:26:35 PM

Temps are between 35-50 celsius! Dependíng how hot the room
temp is... i'd say around 45celsius! I'm gonna change my fan and heatsink to a better one today!

Speed Kills Use Windows!!!
June 25, 2001 3:14:03 PM

I have a similar situation, kt7a raid, 1 gig axia Y, boots fine at 1260 (9.5 x 133) just fine at 1.8V, at 1333 (10x 133) it will lock at windows desktop, BUT, if I drop the voltage to 1.70, then its fine!!, have you tried other voltages?

Next time you wave - use all your fingers
June 25, 2001 9:26:15 PM

Yeah, I had something weird happen like that, I read an article saying that 1.33's werent stable at 1.75 and reccomended you up the voltage to 1.8 even if you werent overclocking(which I am). When I put it at 1.8 it froze randomly(never froze before or since), so I set the voltage back to 1.75(and now its at 1.725) because if its stable at a lower voltage, why not run at it(it would help temps).

is there a negative to a lower voltage?
(assuming you give your system a 24 hour burn in etc with the low voltage and are stable?)

~Matisaro~
"Friends don't let friends buy Pentiums"
~Tbird1.3@1.55~
Anonymous
a b à CPUs
June 28, 2001 9:31:52 AM

Thank for the tip! I'll try that today!

Speed Kills Use Windows!!!
June 28, 2001 7:41:19 PM

Try this...Go to the bios softmenu and UP the CPU DRIVE STRENGTH to 4.

This is required for all overclocking on abit boards. I know you aren't overclocking, but this may help.



I'm not in touch with my feeings, and I like it that way!
June 28, 2001 8:36:14 PM

Do you have any links regaring CPU Drive Strength?

I have a Duron 600 @1007 mhz on a KT7 which has been fine for 6 months. Recently, as the weather has been getting warmer, my system became unstable. A CPU Drive Strength of 3 made things worse. Set to zero my system is once again stable (about 2 weeks). This is working the opposite way from which I first thought.
June 28, 2001 9:16:43 PM

lol...well I suppose whatever works. All I know is that whenever I hit the overclocking limit....I up the CPU
drive strength and can go a little further.

I misspoke on the kt7 drive strength..it's 3 not 4. I was thinking of my ka7 board...on that board, drive strength goes from like 1-9, whereas my kt7 only goes from 0-3

I got an extra 200mhz out of my ka7 800, making it a 1000, simply by setting cpu drive strength to 5. Before the drive strength increase I couldn't get much past 864.

Also my 1200 was unstable at any higher speed until I upped the cpu drive strength to 3.

A search for "CPU DRIVE STRENGTH" actually gives lots of conflicting/contradicting views on whether it's worthy or not. But for me it's helped greatly.




I'm not in touch with my feeings, and I like it that way!
Anonymous
a b à CPUs
July 4, 2001 10:34:32 AM

Thanks!

Speed Kills Use Windows!!!
July 4, 2001 10:42:45 AM

What does the "drive strength" actually do?


Next time you wave - use all your fingers
Anonymous
a b à CPUs
July 4, 2001 12:03:19 PM

If i remember correctly it has something to do to weakning and making cpu's signals stronger!

Speed Kills Use Windows!!!
July 5, 2001 6:49:58 PM

"I got an extra 200mhz out of my ka7 800, making it a 1000, simply by setting cpu drive strength to 5. Before the drive strength increase I couldn't get much past 864"

hummmmm My 700 is stuck at 850. I wonder if I up that it will help me get to 900. Thanks for the post!

Jeff

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