boot loop not solved until start bios !

expert92

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Jun 16, 2010
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hello every one
i have a very strange issue on my desktop PC
first my motherbord is p45 memorylover
my cpu is Q9550 and 8 gb ddr3 ram , graphic card is 5970
i have to sata hard's the first is 500GB and the second is 200GB
yasterday :
my pc was running fine until there was temperature problem cause the cpu fan does not work fine so i changed it to thermaltake cl-p0493 x5 orb fx ii and after that the PC doesn't start until many tries of changing cables slots etc (i thought this is the problem) and no problem at all
today :
the pc doesn't start it says boot mcr is missing so i changed the the sata cables slots places of hard drive (cause the mobo doesn't see the first hard witch the windows is installed in) and the cables too but there is now boot loop,
i have tried to enter the bios settings and i succeed and after i put ESC in bios and hit okey (exiting bios settings ) the PC restart normally and enter windows with out any problem
so the problem now there is a boot loop could not be solved with out pressing DEL and enter bios the restart !!!!! so this is the only way to start the PC :
power on >>> entering bios (change nothing) >>> exiting (nothing changed)>>> start windows normally ??????????
by the way the new fan has only three pins not four so the bios only recognize the cpu temp and not rpm but i don't think the problem form it cause i removed its connector with out removing new fan form cpu and i connects only my old cpu fan cable and the problem still exist
so please any ideas !?
 

TenPc

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Jul 11, 2012
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Whenever you reseat or replace someting on the motherboard, the bios needs a manual Save & Exit, you don't necessarily need to change anything in the bios settings, just Save then exit. If the rig goes back to the bios after you have already done the Save (no changes) then there is an issue with the PC health.

Particular PC's that require a manual Save after a change of the hardware are usually proprietory desktops like Acer, Dell, HP, etc rather than a generic build. Have not experienced it with Asus, Gigabyte, nor Asrock but could be a factor, one day...
 

TenPc

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Jul 11, 2012
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4X2gb ddr3 1333 of ram = all the same make and model? Is it a kit of 4 or 2 kits of 2 dual?

If a kit of 4, it could be quad channel ram and not dual channel to which only 2 sticks would be recognised.