PC POST'ing twice before starting up?

[RPD]

For as long as I can remember, my PC always POST's twice before getting to windows. I never understood why and have put up with it annoying me for along time. Other then this exception my PC runs fine, I've never had any crashing issues.

I don't know if technically the first attempt is a successful POST, but its the best way I can describe it. It kinda starts, restarts then just goes along ok.

MB - Gigabyte GA-EP45-DS4P
CPU - Intel E8400 C2D (stock speed)
GPU - ASUS Geforce 9600GT 512mb
RAM - 4x1GB Kingston DDR2 1066
HDD's - 2x Kingston 96gb 100V+, 1x1TB

From my limited experience, when you put together a PC it either POST's or doesn't so has me scratching my head.

Here is a little clip of it occurring - http://www.youtube.com/watch?v=2yNQIpXn22E

 

[pandemonium]

I'm not able to view the clip, but I'm guessing it's something to do with the dual bios seeing something wrong with the primary boot, then falling to the secondary? Have you bothered with a bios flash/update?

I've never seen this in my experiences, either. The only thing close is when overclocking and it doesn't like your clocks/voltages/timings and then reboots for you (I have a similar Gigabyte board).

 

[RPD]

Well I've never updated my bios, I really don't mess with it. Short of telling it the boot order of HDD's and a few minor settings.

 

[Spicedaddy]

It's normal, I used to have a Gigabyte P35-DS3L that did this. (I think it was only on cold boots, not restarts...) Google "P35 Double Post" if you want more info.

The last two boards I've had didn't do it. (Gigabyte P55 and Z68)

 

[RPD]

Ha, I google that and this thread is number 3 on the search results.

I'll fiddle with the PC again after work with a few suggested fixes.

 

[blackened23]

For as long as I can remember, my PC always POST's twice before getting to windows. I never understood why and have put up with it annoying me for along time. Other then this exception my PC runs fine, I've never had any crashing issues.

I don't know if technically the first attempt is a successful POST, but its the best way I can describe it. It kinda starts, restarts then just goes along ok.

MB - Gigabyte GA-EP45-DS4P
CPU - Intel E8400 C2D (stock speed)
GPU - ASUS Geforce 9600GT 512mb
RAM - 4x1GB Kingston DDR2 1066
HDD's - 2x Kingston 96gb 100V+, 1x1TB

From my limited experience, when you put together a PC it either POST's or doesn't so has me scratching my head.

Here is a little clip of it occurring - http://www.youtube.com/watch?v=2yNQIpXn22E

Some asus motherboards do this as well. Basically whats happening is that a component requires more or less voltage than is specified in the BIOS and the PC has to cold reboot to apply a proper voltage.

This happens on my asus motherboards if I use a greater than 100mhz BCLK on any sandy bridge cpu.

 

[RPD]

According to this thread - https://forums.ebuyer.com/showthread.php?28388-MSI-P35-Neo-Double-Boot-Issues

An unofficial fix for this could be this. Go into the bios and change the PCI express X4 speed controller from auto to 4X and post your results here.

Except my MB is different and I can't find this exact setting. I only have a PCI Express Frequency, which has settings of Auto, or 90 to anything to 150%. I tried just 100% and still get the issue. The manual (page 41) http://download.gigabyte.us/FileList/Manual/motherboard_manual_ga-ep45-ds4(p)_e.pdf shows the only spot I see for PCI. This didn't fix the issue.

 

[otherside]

im experiencing this too with my asus p8z68m pro and so annoying, so slow to get into the post. Im running at stock speed also,i'll try to change the pcie config

 

[JBT]

This was a known issue on P35 chipsets. Most manufacturers were able to get it to only do it on cold reboots, or after the first power on after being unplugged with a BIOS revision. It doesn't surprise me it would happen with other motherboards though.

 

[AdamK47]

This was a known issue on P35 chipsets. Most manufacturers were able to get it to only do it on cold reboots, or after the first power on after being unplugged with a BIOS revision. It doesn't surprise me it would happen with other motherboards though.

I had a Gigabyte P35 board that did this. I just got use to it.

 

[TemjinGold]

I had this problem with the rig below. Updated my bios and it went away.