KT7 Bios Checksum Error, help please.

cvela

Member
Nov 23, 1999
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hi there,
Im sad to say that a stable overclocked Duron has bit the dust. I thought that I had done plenty of research when looking for a cooling solution for my buy.com Duron 650mhz. So I went ahead and jumped on the alpha 6035 heatsink. Well over the last week I began having my PC run at hotter temps than with the stock HSF combo, so I figured that the alpha was not making good contact with the cpu. I carefully removed it several times (knowing sharky killed a duron and thunderbird because of the heatsinks, and other websites that have stated to be VERY careful installing and removing them) and repositioned it (Alpha) on the cpu in two different orientations. Well Im positive that the clip on the alpha was not applying pressure evenly across the core, since I noticed that two corners of the core were chipped pretty bad. Is there a company out there that sells a clip for the alpha which will work with the duron/thunderbird? I contacted 3dfxcool.com about just returning the HSF combo but have gotten no reply on the clip issue. All I wanted was to get a refund or exchange for the globalwin FOB38 or the Taisi HSF.
To make it short I have a new duron enroute today from buy.com (a 700mhz) to replace the poor old 650 (which ran stable @ 970mhz! 1.85-1.80v! Win2kPro rock solid and was spanking the PIII 1ghz on Sandra!!)
If I cant return the Heatsink, does anybody have a recommendation? I mean I understand that the alpha hs rocks, so if this problem can be fixed with just a new clip or a modification I would just as well keep the alpha.

Thank you!
Carlos
 

TuffGuy

Diamond Member
Jul 6, 2000
6,478
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76
it works fine on mine. all the durons/tbirds that i've tested came with little rubber feet, maybe yours didn't. i'm not quite sure exactly how you put your heatsink on, but it sounds like you've cracked the corners on the side that you first attach the heatsink to. also, like the wise office boy said, got paste? i've heard of people frying their chips because they forgot to add the goop.
 

DaddyG

Banned
Mar 24, 2000
2,335
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Cvela,

Did you have the clip on the correct way ?? Because the clip just installs through the fins it is possible to have the clip backwards. It will not provide correct pressure this way, temps are usually too high. Its important when installing any HSF on a Duron/Bird that the hsf is held flat aginst the core while the clips are fastened to prevent the hsf rocking on the edge of the core.
 

tgillitzr

Golden Member
Mar 10, 2000
1,399
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<< The Alpha killed my Duron! Argh!!!! >>



No, YOU killed your Duron. Thats about like saying &quot;Guns kill&quot;
 

cvela

Member
Nov 23, 1999
34
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0
of course I killed the duron, now... I just got the brand new duron in UPS right now and to my surprise I still get the same boot error from the bios.


&quot;Award Bootblock Bios v1.0
copyright (c) 1998, Award software inc.

Bios Checksum error

Detecting floppy drive A media..
Insert system disk and press enter&quot;

There is also a two-tone siren following this posting.. I looked up info on the Abit FAQ (unofficial) and it states its either a voltage issue or overheating. I am using the AMD stock heatsink on this CPU now with no help. I have even taken the whole motherboard out of the case to see if there was maybe a grounding issue.

And it just hangs there, really strange.
Well I will conduct further investigation, into what must be another possible problem.
I am just booting up with the video card, hard drive and floppy currently.

thanks!
 

lloe

Member
Sep 7, 2000
51
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If you can get back to the softmenu, drop the fsb back to 100. I get the same error if I go over 105 fsb.

Of course, this doesn't help, if you can't get to the softmenu.

Larry
 

sojin

Member
Sep 19, 2000
145
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0
the BIOS checksum error usually spitts out when the CPU is not properly unlocked and the speed setting is screwed up right there.

i dunno what m/b you have... if it's kt7, you may use the jumper to reset the user config data in BIOS flash.

BTW, how did you fugure out your duron 650 has been killed? by the BIOS checksum error msg?!
 

dude

Diamond Member
Oct 16, 1999
3,192
0
71
Try holding the insert key down when you power up. If it posts without the bios checksum error, then it's an option you're changing that gave you the error.

If that doesnt' work, clear your bios via the red jumper near the battery.


I believe it's normal for the small chips on the edge of the duron when you put on the chip, IF you didn't handle the heatsink carefully enough when placing it on. The chip is very fragile and brittle.
 

cvela

Member
Nov 23, 1999
34
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0
Ok I have an abit kt7 board (non-raid), and the new cpu gives me the same problem.
Its actually a week 0023 core, the L1 bridges are not cut on this one, so I figured it would just boot. I would guess that then the board might have gone bad, Im not sure I will try any ideas that can be given to get the system up and running again. The board and the 650 duron ran fine for 3 weeks, that is what bothers me. Just all of a sudden I got that error as stated previously.

KT7
400w PS Leadman
650 &amp; 700mhz durons
both with the same message on boot, neither penciled either.

I appreciate the help!
Thank you!
Carlos

UPDATE: I just took the whole mobo with the 650 and 700 duron and ran it over to the Wifes' PC (athlon 650 classic), and it gave me the same problem.. I even used her floppy to see if the floppy cable or drive was bad on mine and not letting mobo boot. Im pretty much out of ideas as to what can be happening.

thanks!
 

sojin

Member
Sep 19, 2000
145
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0
like I said, wipe your sweaty hands at first, then set your fat fingers on the so-called 'CCMOS1' jumper on the neighbor-hood of south 686 bridge. shorten the pin2 and pin3 for a second, then stick it back on pin1 and pin2. time to boot up...

Oh, forgot tell ya, you got to swear before doing the stuff, and before booting up as well... four letter word the best... use ur heart, lukko
 

cvela

Member
Nov 23, 1999
34
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0
Hahaha,
I have yelled every swear work imaginable, and have also reset the CMOS1 jumper several times. I have unplugged the Power supply as well and done it, reset holding the insert key, even taken the battery out for a few minutes. I just emailed microbarn to see if they will just give an even exchange, I hope though I dont have to and will continue to fiddle with it till they respond.

thanks,
carlos
 

hymy

Senior member
Oct 12, 1999
535
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76
You know your bios might actually be bad. Its asking you for a bootdisk. Maybe you should put one in the floppy. If it boots on a floppy; flash the bios.
 

ingenue007

Senior member
Apr 4, 2000
860
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0
i get that error when i try to overclock too high. when i use the 11x multiplier on my duron 700 i get that error. that or when i se the FS too high.

back down and you will be fine.
 

pen^2

Banned
Apr 1, 2000
2,845
0
0
try diffrent revisions of the bios bin files. at least thats how i previously solved the same trouble on my ka7. if cpu were dead, you wouldnt be gettin any response from the system, including the checksum error.
 

cvela

Member
Nov 23, 1999
34
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0
woo-hoo!!!

I went ahead and checked the boot disks I was using to find out that they were bad! argh! anyway I went ahead and booted with a win98se CD and formated a couple of system disks. After that I downloaded what appeared to be the latest bios from abit, and it worked! I reflashed the bios and it took care of the whole problem!
I wonder what caused this though, its still strange anyway I hope everything works well.. Penciling has been done and Im going to keep the processor at 900mhz for a bit. Oh its a 600mhz cpu not a 650mhz, I confused it with my old athlon 650mhz classic. Anyway thank you all!

Carlos
 

sojin

Member
Sep 19, 2000
145
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geeze, so swearing REALLY, i mean really, WORKS!!! what did I say...

nice going, use your heart(when swearing), lukko...
 

hymy

Senior member
Oct 12, 1999
535
0
76
Weird crazy stuff is prone to happen when your overclocking, I'm glad you got it to working.
 

pen^2

Banned
Apr 1, 2000
2,845
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i dunno but if you dont disable L1/L2 cache while flash upgrading bios it gets all mixed up from what i gathered...