how strange...

akura · 11th July 2001, 6:33 PM

okay heres the current situation:

A7V133 mobo
128 Kingmax PC150
Athlon C 1gig (axia)
Black Fop38
1.005a bios

Basically the chip overclocks quite well, ive been able to push it up to 1350 (150x9) without changing the VCore setting in the bios away from (AUTO). Now personally i have no idea what (AUTO) means particularly, i like seeing numbers myself. But from what the hardware monitor in bios tells me it is 1.75v, whereas Asus Probe reads it as 1.808v...

The strange thing starts occuring when i crank the speed up a tiny notch (say 1425, 150x9.5), and so using my overclockers logic i also crank up the VCore some (1.85, i usually go max and then drop it off bit by bit from there). Saving this i quit bios and let it boot into windows... no dramas whatsoever.

Run CPU stability, folding@home, general use for a few hrs. No crashes, sweet. It must be stable right? almost.

When i then restart the machine (soft, windows restart), it blacks out and there is NO POST. Theres not even an output to the monitor! It baffles me how it can run full load for a few hrs without dying and then suddenly not boot on me? I drop the voltage back to (AUTO) and things will boot (and reboot) fine except for the fact that the voltage is too low thus windows wont boot!

Has anyone had this before? Im thinking maybe the powerbox isnt supplying enough of an initial charge to get it going or something. Its got 25A on the 5v line, although i must admit it is a slightly cheapo powerbox... and im sure it wouldnt be a cooling factor, as it is just the POST stage...

Any ideas? Anyone?

edit: more details

westicals · 11th July 2001, 7:10 PM

Try Forcing the 1.85V on the mobo using the jumpers, or mod ur L7 Bridges to 1.85

Doeth72 · 13th July 2001, 7:49 PM

westicals is right......the m/b is defaulting back to auto when you reboot and to permanently set the Vcore you need to use the jumpers

FuK[NuTz]2k · 13th July 2001, 10:19 PM

well it could be doing what my mobo ish does when i soft restart from windows, it goes to 1.475v MAX.....and thus buggering up every narything in sight..

mod the l7's i say

usumgal · 13th July 2001, 10:45 PM

I get similar readings with my IWLL KK266 i.e. bios set to 1.80v but mbm5 viahm read 1.851v
I have also noticed the bios restart windows reboot problem I found that if I hit reset as it was posting after the bios change it had the same effect as a reboot i.e. would'nt work, I thought it must have been that the bois needs to power down to reset itself properly.

11th July 2001, 6:33 PM	#1
akura Member Join Date: Jun 2001 Location: Melbourne Posts: 566	how strange... okay heres the current situation: A7V133 mobo 128 Kingmax PC150 Athlon C 1gig (axia) Black Fop38 1.005a bios Basically the chip overclocks quite well, ive been able to push it up to 1350 (150x9) without changing the VCore setting in the bios away from (AUTO). Now personally i have no idea what (AUTO) means particularly, i like seeing numbers myself. But from what the hardware monitor in bios tells me it is 1.75v, whereas Asus Probe reads it as 1.808v... The strange thing starts occuring when i crank the speed up a tiny notch (say 1425, 150x9.5), and so using my overclockers logic i also crank up the VCore some (1.85, i usually go max and then drop it off bit by bit from there). Saving this i quit bios and let it boot into windows... no dramas whatsoever. Run CPU stability, folding@home, general use for a few hrs. No crashes, sweet. It must be stable right? almost. When i then restart the machine (soft, windows restart), it blacks out and there is NO POST. Theres not even an output to the monitor! It baffles me how it can run full load for a few hrs without dying and then suddenly not boot on me? I drop the voltage back to (AUTO) and things will boot (and reboot) fine except for the fact that the voltage is too low thus windows wont boot! Has anyone had this before? Im thinking maybe the powerbox isnt supplying enough of an initial charge to get it going or something. Its got 25A on the 5v line, although i must admit it is a slightly cheapo powerbox... and im sure it wouldnt be a cooling factor, as it is just the POST stage... Any ideas? Anyone? edit: more details Last edited by akura; 11th July 2001 at 7:26 PM.

11th July 2001, 7:10 PM	#2
westicals Member Join Date: Jun 2001 Location: Geelong Posts: 749	Try Forcing the 1.85V on the mobo using the jumpers, or mod ur L7 Bridges to 1.85 __________________ "I don't make predictions. I never have and I never will...." Tony Blair \| OCAU Guitar Players Club Member 101

13th July 2001, 10:45 PM	#5
usumgal Member Join Date: Jun 2001 Location: northern N,S,W Posts: 251	I get similar readings with my IWLL KK266 i.e. bios set to 1.80v but mbm5 viahm read 1.851v I have also noticed the bios restart windows reboot problem I found that if I hit reset as it was posting after the bios change it had the same effect as a reboot i.e. would'nt work, I thought it must have been that the bois needs to power down to reset itself properly. __________________ Baba Nam Kevalam I like my Beer Black my Rum Dark and my Wine Green

13th July 2001, 7:49 PM	#3
Doeth72 Member Join Date: Jun 2001 Location: Port Macquarie Posts: 100	westicals is right......the m/b is defaulting back to auto when you reboot and to permanently set the Vcore you need to use the jumpers

13th July 2001, 10:19 PM	#4
FuK[NuTz]2k Member Join Date: Jun 2001 Location: Melbourne Posts: 1,229	well it could be doing what my mobo ish does when i soft restart from windows, it goes to 1.475v MAX.....and thus buggering up every narything in sight.. mod the l7's i say