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asus P5K vanilla anoying bug

K

kentsfield

Member
Hi!

I just found an anoying thing with my p5k, till now i had jumperfree configuration on auto. Yesterday i changed my vdimm voltage manualy to see how much voltage 4 sticks need, before it was on auto, i`ve set it to 1.8V and no post. Ok, went a little higher 1.85V booted fine, i left memtest overnight (10hrs) no errors. I`ve unplugged the machine to put it back to place. I than hit the start button and it took 3-4 seconds to even start, first the light went on then off and than on again and it booted. Before it starded up immediately. I thought it was because i was playing with Vdimm, I`ve tested some voltages and other settings and finally came to conclusion that whenever i set the jumperfree configuration/AI overclocking to manual and even if i leave all the settings in there on auto if i unpluge the machine from the wall or turn off the power supply for a few seconds/minutes the machine will not start immediately like it does if AI is on auto. If the machine is left pluged in and supply turned on when i turn off the machine than it starts up immediately after i push the start button even if AI on manual.

Does anybody else noticed this or is this normal?
 
Hey, I have basically the same system specs as you and had this same thing happen with my pc, I'm not sure if its normal but to add to that I use to run my Mushkin pc2-8500 ram fine when I originally built the system and set the latency's manually to default all ran fine until a couple weeks ago when I would boot up and get a Overclocking failed error and asked me to restore default bios settings even tho I wasnt OC, when I set the bios to default the ram would run at pc2-6400 speed and the pc would boot. With this issue I decided to order new ram...got the new ram...set the latency's..same error, I finally set the ram voltage to default manually and it booted, I've been having weird issues with the board, personally think its to do with ASUS's AI settings.
 
No nothing to do with the board - this is one of the oddities of the P35 chipset. Affects all boards. Affects my Abit IP35-E, GA-DS3L and P5K-E Wifi (and also the P965 chipset - my Asus P5B deluxe did the same thing)
The famous double boot problem - all over the net
I do not think this sympton will ever go away (now maybe if you run at default it will work who knows - I have never run a machine at default so dunno)
 
Sometimes if you increase the memory voltage it changes the ram timings and even changes the ram divider. This dual boot is normal with these boards as the bootstrap is being reset.

I have had the memory divider change automatically from 1:1 to 4:5 , just by increasing the ram voltage. This would mean that the ram was probably undervolted before (trying to run them at 1.8v when they are programmed for 2.0v, for instance).
 
My plan is to OC as soon as I decide on a heatsink for the cpu, although Ive never really done any overclocking except on my old rig where i just turned the fsb up (amd anthlon-xp). Hopefully after I OC I'm not going to get this error again:S
 
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