Diagnosed my sporadic freeze ups and found the cause....

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Junior77

Senior member
Feb 8, 2001
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I cannot run my 1.3ghz cpu at 1.3ghz on my abit kt7a Mobo. I have to run it at 1.0ghz. I updated my bios. I don't know what else to do. I'm gonna run it at 1.0ghz for another few days. If my diagnosis is correct, I'm gonna call up mwave and tell them to send me a different mobo. I pay for a 1.3, i want it to run at 1.3.
 
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Junior77

Senior member
Feb 8, 2001
300
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I even tried running it at that speed. Let me clarify. I had a kt7 before the kt7a. I kept getting the same freeze ups with a 1.1ghz cpu. So i purchased a new mobo and new cpu. Still get the freeze ups unless i run it at 1.0ghz. Very disappointing. I'm gonna call them tomorrow and demand another mobo, not abit. No more abit for me.
 
R

rommel

Banned
Jan 23, 2001
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man do yourself a favor and ditch abit altogether...go with an epox or asus or chaintech
 
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AKgamer

Member
Apr 9, 2001
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Had a bunch of problems with Abit KT7A-RAID Mobo. Thought it was SoundBlaster Live! so I bought the TB Santa Cruz, and still had some problems (not as many though).

I think I eventually solved the problem by looking at IRQ sharing issues.

PCI slot 1 shares IRQ signals with AGP slot
PCI slots 2 and 3 share PIRQ_0 interupt (not exactly sure what that means though)
PCI slot 4 shares IRQ signals with USB, AND shares a PIRQ_0 interupt with slot 6
PCI slot 5 shares IRQ signals with the RAID controller (if you have it / have it on).

Seems neither the TB Santa Cruz nor the SB Live support IRQ sharing (I could be wrong there), and they both want a 2nd IRQ to support legacy games. Its really easy to turn the 2nd one off with the TBSC, much more difficult with the SBLive.

Also, I don't think my network card supports IRQ sharing.

To solve the problem I turned off the HPT370 IDE (Raid) controller in BIOS, turned off "Assign IRQ for USB" in BIOS, and moved the NIC card around until every device in device manager had its own IRQ. Haven't had a crash since I did that.

NOTE: Device Manager, and Norton System Works Pro were indicating no hardware problems the whole time.

This was a royal pain to figure out but now I can O/C to 10x133 and run 3DMark2001 successfully.

Good luck.

 
J

Junior77

Senior member
Feb 8, 2001
300
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Akgame, that's a lot of stuff you tested. I also tested everything i could. I took every pci card i had out, and still kept getting freeze ups. I changed memory, video card, etc... I too think abit sucks now. I'm going to call mwave right now and tell them to send me a different mobo.

Any ideas what mobo i should get? Please let me know. I don't want to make the same mistake.
 
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MadAd

Senior member
Oct 1, 2000
429
1
81
the live legacy part is easily removable, and you can free up the irq it holds, however winblows cant get it right all the time, and on mine still kept irq5 for it, (despite it being totally removed in options).

and also the otther half of the card, the bit you use that also needs an irq, does definatly support irq sharing.

assuming you kill the legacy bit in Live, what i did was to assign the pirq relevant to the live's pci slot to the irq5 the legacy bit was on (not 1, not 5, but any middle slot) if its in slot3, thats pirq2 to set to irq5(man you are messed up on thos pirqs, read this bios guide on em, its easy once u know how) and i was all sorted.

Yes i did also notice that the USB controller had a mind of its own, on reboot i noticed winblows kept shoving it onto irq's with other devices using PCI sharing, strange cuz there was also irq channels free.

A quick manual pirq assignment (check the guide for what pirq relates to what pci slot) of the device the USB was in love with to the free channel, and it all dropped in sweet as cherry pie.


hope this helps

 
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