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Athlon 1.4 (266) and KT7A lock ups!!! Same old problems?!

Z

Zagloba

Member
I have just installed Athlon 1.4 (266) on Abit KT7A mobo and I'm having a LOT of problems with this setup. Win98 SE locks up after running for about 5-10 minutes. I have Viper 770 Ultra AGP, 128MB Mushkin Rev. 2 (133) RAM, AMD approved A-1 350W PS, and Cooler Master DP5-6I31C-A1 HSF, 20GB and 9GB Quantum Fireball HDs. The FSB is set to 133 with multiplier at 10.5, core voltage is set to default (1.75v, I/O voltage 3.40v). After installing Win 98 I have installed VIA's service pack 4-1 as per Abit's instructions (to install service pack before installing video/audio drivers). The machine still locks up after several minutes and it's not even getting hot. it runs at about 95 F. I'm tired of not being able to enjoy my brand new system and i'm out of ideas I thought I have just tried about everything. Any suggestions will be GREATLY APPRECIATED!!

PS. I haven't tried Win 2K yet, as I have installed 98SE first so I could install Partition Commander with System Commander for dual boot.:|
 
Honestly I would try to run with minimal number of devices installed...Definitely could be hardware conflict.

1)mobo/cpu/fan
2)1 stick of ram
3)vid card
4)FDD
5)HDD

Make sure you are using latest via drivers...should be at 4.32 now...

If you have installed drivers for other devices and such, reformat and reinstall win98 with only above mentioned items.

Use all default settings in bios...no tweaking yet until you can run at defaults...

Then one by one add cards and such and see if a problem surfaces...if it is a hardware conflict you can maybe move pci card to another slot and see if that helps the situation...

Is this the board with the highpoint ata100 controller? Could be an issue if you are using a slot (ie like soundcard) that shares with the ata100 controller....
 
That's all i have installed so far just the video card, no sound, no usb mouse. No tweaking in BIOS, running at default settings, FSB @133x10.5 for Athlon 1.4(266). Just installed the latest 4.32 4-1 drivers. Again, no luck, it freezes every 5-10 minutes. Clean win 98 install....Just the basics. This SOB just has to cause problems. This is my first Abit mobo and I'm pretty pissed off. If i won't find a solution in the next two days, i'll get an RMA send the mother back and get ASUS A7V133......AHHHHH!

 
Disable ACPI for CPU speed >= 1,401 MHz for stable operation.



<< Why does Windows lock up when I use a 1.4GHz Thunderbird?

It has been reported that with processors running at above 1.33GHz it is necessary to set the K7 CLK_CTL to Optimal in the BIOS in order for the system to be stable. An alternative to this is to use BIOS WW or earlier, which does not provide this option. If K7 CLK CTL is set to Default then the machine becomes unstable. Another user wrote to me that the reason for this is that at high speeds the ACPI HLT function does not work correctly and as soon as the processor begins to cool it will lock up. The best solution (since changing K7_CTL to optimal is not completely stable) is to disable ACPI completely under these circumstances. Note that ABIT's beta BIOS 3Rb02 has ACPI disabled to resolve this stability issue. >>



Go
here for information.

Cheers!
 
Definitley check your M/B Bios, mine came out when there was only the 1.2G TBird, so if you M/B is older stock, you'll definitely have to flash, also check you settings on the voltage, please don't take this as gospel, but my 1.2 is taking upto 1.8v. Is the 1.4Ghz on the 0.13 micron circuits? And therefore requires less voltage? Also check what the chip strengths are in your BIOS,and whether they're interleaved etc, I found mine unstable when I used these options
 
Its a matter of FSB!
You can run your CPU at 13*110 but not on 10.5@133 (no matter if your ram is pc 133 or not)
Viva Abit go to hell!
 
And then theres HARDWARE Anandtechs resident poster child for user error and general stupidity.
 
My Bios will not support 13x multiplier, and it's the latest bios 3C. Also, why wouldn't you want to set the FSB to 133?! if the mobo and the chip were designed to run at 133FSB? I'm just curious why that would be the case? Maybe I'm missing something or maybe it's the fact that I've been up for the past few days trying to get that mother to work. Am I just completely delirious? Why wouldn't you want to set your FSB to 133 (besided that fact that it locks up frequently) arent's these the specs for Athlon 1.4?

Thanks
 
I don't want to sound like a moron but why wouldn't you want to set the FSB to 133? 10.5 x 133? Right. If the Athlon is (266) shouldn't it be set to 133 to get the optimal perfomace. This should work without any stability issues. At FSB 110 the system is running underclocked...I'm pretty sure this may work...but at a slight performance hit.
 
Runs cool, below 98°F. Hey, maybe it's too cool. Athlon's are not used to this.....I Maybe if I heat things up the damn CPU will feel right at home and may even work. What is the voltage default for Athlon 1.4 Cpus??
 
He has commented temps during lockup and I don't see it as a problem....As long as he has limited amount of devices installed I can;t imagine it is hardware related conflicts yet. That is if he only has the devices in I listed above.

I think not running the chip at 133fsb, which a) the chip is designed for and B) the kt133a is designed for is stupid...If hardware is right and I don't think he is. Then this is a defect once again by that fine company abit. Send the POS back.

However...try all those suggestions listed in my link to the other thread. Let me know if it helped. If you ask for help you have to be willing to try them out.

Hardware has you going on some weird tangent...
 
On high speed it seems the kt7a is flaky on fsb133
my kt7 is rock stable with eg. 1000@100 and locks up quite easy with 1000@133
(TB1.33 @ 1.45 now)
Ram is Infinion PC133
Abit pulled out 3 beta bioses in a short time thats a bad sign!
 
I've never read the entire thread yet but from your initial post it already sounds like a PSU problem. You can check this by getting into the bios and taking a look on the 5.0V output of your PSU. If it's less than 5% of 5.0V (4.95V) you do have a psu problem. The best fix is to get a well regulated psu. Not necessarily big like 400 or even 350 W but a well regulated PSU. Sparkle and Enermax are such.
 
< If it's less than 5% of 5.0V (4.95V) you do have a psu problem. >

Why I don't disagree with the theory it can be PSU, I think 5% of 5.0 would be like 4.75 or 5.25 not 4.95...that is 1 percent.

< On high speed it seems the kt7a is flaky on fsb133
my kt7 is rock stable with eg. 1000@100 and locks up quite easy with 1000@133 >

Like you said yours is the kt7 or kt133 boards and many could never get much over 10-12 fsb. He has the kt133a which is setup for the 133fsb.

I think the issue may be support for the higher procs but not related to just high fsb, as many have 1.0ghz-1.2ghz running fine at default fsb.

< Abit pulled out 3 beta bioses in a short time thats a bad sign! >

I hear ya brother!!!!
 
I have tried that. I have the latest bios 3C. k7_clk_ctrl is set to optimal. ACPI is disabled....running at default speed, except FSB and multiplier, they're set to 10.5 x 133. I think that Kt7a just doesn't like the 1.4 Athlon.

I have

Athlon (266) 1.4Ghz
Abit KT7A
128 MB Mushkin Rev. 2
Quantum Fireball 20GB
Viper 770 Ultra 32MG

These are the only components that are installed.....really just bare bones....BTW I have 350W AMD approved power supply and Cooler Master HSF. I don't think it's win 98 issue, has to be hardware. At first i thought that I got the 200 Athlon but no it's the right version C.


I think I can hear Asus A7V133 calling my name.....any suggestions??🙂



 
< If it's less than 5% of 5.0V (4.95V) you do have a psu problem. >

Why I don't disagree with the theory it can be PSU, I think 5% of 5.0 would be like 4.75 or 5.25 not 4.95...that is 1 percent.
from atx spec some % of 5V is no prob

< On high speed it seems the kt7a is flaky on fsb133
my kt7 is rock stable with eg. 1000@100 and locks up quite easy with 1000@133 >

Like you said yours is the kt7 or kt133 boards and many could never get much over 10-12 fsb. He has the kt133a which is setup for the 133fsb.
oh i have the kt7a-r!

I think the issue may be support for the higher procs but not related to just high fsb, as many have 1.0ghz-1.2ghz running fine at default fsb.
i have a perfect example in my board with all 100% the same 1000 (10X100) is fine 1000@133 is flaky at best

running now 13*112 with 100% no problem!

oh i have the first rev 1.0 of the kt7a-r (act its rev 1.3) maybe thats the reason for my crap mb ??


< Abit pulled out 3 beta bioses in a short time thats a bad sign! >

I hear ya brother!!!!
 
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