PC will not Boot -BIOS problem please help

[Apache-X]

Help please

My Asus A8V Rev.2 Deluxe motherboard Bios keeps going bad see pic below, So I returned board to OverClockers UK after trying to get through to tec support for 4 hours on phone over two days to get return number. Got board back today saying no fault found!

http://www.case-graphics.co.uk/images/av8-mb-bad-bios.jpg


Built a new PC system about ten days ago (see spec below) it work fine for 3 days or so dual booting win 98 and XP ran system defalt not overclocked! And running HL2 at over 100fps.

Until it crashed, and was unable to reboot, sometimes would get as far as dual boot screen and then hanging, but most of the time it would not get that far, also thought I was odd that even after disconnecting power lead and reconnecting all fans were running with out turning on pc front switch ?

What I have tried –

Disconnecting MB battery and resetting CMOS with CLRTC jumper,
Reflasing bios from AFUDOS.exe BIOS Utility With MB CD default BIOS and lates from Asus web site. Kept getting checksum errors with both versions of BIOS when flashing with older version of AFUDOS.exe on disk but not with most resent downloaded from Asus flashed with no reported errors.


Unplugging every thing apart from graphics card and one DIMM in B1 And hard drive. also Swap DIMM’s.

Have tried hard drive in both VIA SATS and Promise RAID set to IDE mode.

ReFashed with onboard flasing program by holding ctrl+f2 (or some thing like that) – after doing this PC would not POST at all and was sent back to OCUK.

After getting back from OCUK it got as far as dual boot screen and hung again, on rebooting got Bad BIOS chechsum error again, i have not re-flashed it again just turned it off and on but still came up same or hung, but after letting it cool would reboot windows dual boot screen without hanging so tried loading win98 but hung on scan disk, when rebooted got Bad BIOS chechsum, error again.

Any ideas ????? could it be hard drive fault causing the BIOS error on motherboard ?

Not built PC for over 2 years before this one, so don’t have much idea about SATA drives or have a another SATA system I can test it in.





System spec all components From OC-UK

AMD Athlon 64 3000+ Winchester 90nm (Socket 939) - Retail (CP-096-AM) 1

Asus A8V Rev.2 Deluxe (Socket 939) Motherboard (MB-083-AS) 1

GeIL 512MB (2x256MB) PC3200 Value Dual Channel Kit CAS2.5 (GE5123200BHDC) (MY-004-GL) 1

MSI NX6600GT-VTD128 GeForce 6600 GT 128MB DDR VIVO TV-Out/DVI (AGP) - Retail (GX-051-MS) 1

Antec Sonata Piano Black Quiet Case - 380W TruePower Silent PSU (CA-003-AT) 1

NEC ND3520 16x 16 DVD±RW Dual Layer ReWriter (Black) - OEM (CD-014-NE) 1

Maxtor DiamondMax Plus 10 NCQ 160GB 6B160MO SATA

[Panda-Pops]

no idea, but gl.....1st post ive seen that actually states the problem, what has bee tried and what the setup is, hope its sorted soon for some hl bashing :sailor:

[GeNeRaL]

sort ya id's out on ed ladder ya fag

[=EN4CER=]

Is your CPU Fan spinning ?

Are your memory chips, well and truely sunk?

[mid_gen]

Try a different PSU.

[Hardy]

well i needed to reset my bios on my asus a8v, and what the manual said didn't work, what did work was the way i've always done it in the past, power off, move the clrtc jumper to reset cmos position, then power up, leave for 10-20 secs till u get a beep or the post stops, then power off, replace jumper and boot. Was no need to mess around with the battery or anything :)

[Kryten]

Try a different PSU.

That worked for me when my Asus A8V was playing up, sent it back to OCUK along with chip and came back no fault found. Swapped 350W PSU for 300W out of spare pc and it worked perfect.

My symptons were turning itself off when trying to install windows and the turn offs gradualy got shorter in time until it wouldn't power on at all unless it was off for 30 mins 1st.

[Panda-Pops]

sort ya id's out on ed ladder ya fag

they are sorted, its a 3 day waiting period to be regged

[GeNeRaL]

STEAM_0:0:533823

take the steam bit away if ya read it it says all ya ids are invalid ya retard :P

[SpiX]

I´ll say that its the BIOS chip taht is ****ed... Take away the System cooler and check the system chip if its buned or messt up(hard to see the if with an untrained eye tho).

And also check the BIOS chip with should sit not far from the System fan. should Say BIOS or ASUS A8v on it :).

If u dont want to do this, or u aint getting it to work. Send it back. I recommend u to send it back befor u break it even more :P..

I have fixed some comps with this problem, and itusaly that the System FAN is ****ed and dont work. And htat have resulted in a major overheated system chip. And I have also seen a guy smashin(slipped when puting up a PCI card, thats atelast what he said :D) a screwdriver into the bios card :P

[Sliver]

I have a asus p4p800 deluxe and i have to say that bios is uttershit....had nothing than problems with it... boot issues, black screens, etc etc :)

Think ill skip asus next time...

[Apache-X]

Thanks for all your help

Have now tried another PSU but still get the same problems

ie on first turning on will POST and start to load operating system and hang or reboot, then on rebooting after first attemt without letting it cooldown will not POST or comes up with bad BIOS Checksum.


I am 90% sure it must be the motherboard, so may just go buy another one from PC world at the weekend, as i have not got the time to hang on the phone for hours in office hours trying to get OCUK to answer, and im not sure i would like another asus motherbord anyway.

Unless any one here has got any more ideas ?

Would be helpfull if i could post on OCUK forum but they do not except new members, if any of you here can post on OCUK forum could you please post my problem there thanks

[Kryten]

Posted for you in OCUK forums, i'll let you know if you get any replies

http://forums.overclockers.co.uk/showthread.php?p=4348228#post4348228

[Kryten]

2 answers so far, both saying try a normal ide drive and disable SATA in the bios

[Apache-X]

2 answers so far, both saying try a normal ide drive and disable SATA in the bios


thanks for you help m8ty you are a star


will give the ide drive a go to night

[Apache-X]

have tryed unpluging SATA harddrive, but did not try ide hard drive as it still fails just booting from CD
(ie on first turning on will POST and start to load operating system and hang or reboot, then on rebooting after first attemt without letting it cooldown will not POST or comes up with bad BIOS Checksum.)

have also tryed diffrent graphics card but still no change.


So its got to be motherboard or CPU ?

did take a trip to pc world tonight to get another motherboard but they havent got any Socket 939 boards at all :confused:

Kryten if you read this could you please post it on OCUK m8ty thanks

[c0rr0d3dm0nk33]

Theorectically, you could get your money back, since the motherboard does not work for what you bought it for, ie, your PC, the other components.

Same law that allows you to take back CD's with copy protection, as it won't work in your PC CD Player, that could be your only one.

I say theorectically, because you do have to deal with Overclockers.

[Kryten]

Posted in OCUK forums again

Why dont you do what I did when I wasnt sure if mbd or proc was faulty, send them both back to ocuk and let them sort it out

Didn't help me in the end actually cos it was my PSU bit I had a different fault to you. If you bought everything from OCUK just send the whole lot back and let them sort it out

[Apache-X]

Posted in OCUK forums again

Why dont you do what I did when I wasnt sure if mbd or proc was faulty, send them both back to ocuk and let them sort it out

Didn't help me in the end actually cos it was my PSU bit I had a different fault to you. If you bought everything from OCUK just send the whole lot back and let them sort it out


If I could get OCUK tec support to answer the phone i would, they seem to engaged and when there not they just let it ring ? have bend trying every days since i got mother board back.

When i got the original return number it took 4 hours to get thought over two days but i was off work then so i had the time, but now im back at work i can't spend all day on phone and they do not except emails if i cant get thought monday will be sending regesterd letter to them.

[Kryten]

Another suggestion from there forums

I have pretty much the same system, I get the same 'Bad BIOS checksum' error message when I've overclocked the CPU too far. I would do the following:

1. Set bios to default settings if it isn't alredy
2. Check Heatsink is seated properly
3. Check CPU temps are ok, should be **** 30c idle
4. If temps are ok and you still have the problem try upping CPU voltage slightly, although you shouldn't really have to do this to get the thing working.

If none of this works then I think you might have to return the CPU.

[Apache-X]

Yep looks like CPU is F*cked

Have now tested CPU on a ABIT motherboard, POST ok but failed to install any operating system, got some errors that looked like memory problems so tested memory with memtest86 (http://www.memtest86.com) both of my DIMM's failed big time, was just about to order some more DIMM's when I thought I better test the DIMM's in another PC system glad I did because they tested fine. So must be CPU as it is the only thing I haven’t swapped out

Back to trying to get OCUK on phone in the morning