What motherboard is it? There are a couple of the z87 boards.

I'm running a z87 ftw and it is horrible.  The bios is not stable enough to navigate around with a mouse.  It will not let me select any drive to boot with unless all other drives are disconnected from the ports except for the one I want to use.  Last night the second bios 1.10 stopped allowing any drive to boot.  This is pure junk with a pretty face.

I tried to start a support ticket but got dropped out of their system.

Dear HRPuffnstuff,
 
I can confirm that the Z87 is a stable product and I am sorry to see that you are having a problem with your configuration. I have requested that a EVGA representative reaches out to you through email to try and assist further.
 
I also apologize for any confusion as the BIOS is updated through Windows and please understand that this is not cheap, but instead it is a easier method to update the board.
 
 
If you do require further support please contact us 24 hours at 1-888-881-3842 option 1 or by email at Support@evga.com. 
 
 

HRPuffnstuff
Well tonight I tried to switch to my new intel 520 and boy did things get real interesting.  First of all I can't make this mb see the boot drive unless I unplug all other hard drives.  Then the bios is unstable making a mouse nearly useless as I try to navigate through the menu to set it up.  Then I switched to bios 2 which is 1.10 and it stopped allowing any drive to boot so I had to switch back to bios 1 which is 1.01.  In the end I managed to get my intel up and running but this bios is crap.  EVGA you need to switch back to a standard bios that is stable and allows the user to configure drives without having to unplug them.  All in all I am not impressed with this mb and when I can afford to I will replace it with a z97 from asus, gigabyte or msi.  Not to mention the fact that evga no longer provides an iso for us to create a boot cd to flash the mb is just plain cheap.  If you are reading this evga this mb is junk and I want you to know that.

I just replied to the email that evga sent me regarding this thread.  If I had the spare cash I would march my behind right on down to the local tiger direct and get something else.

And now I've noticed that my mouse is starting to stutter in windows just like it does in the bios.  If I have to spend more money out of pocket to buy another mb my long standing relationship with buying evga mb's will be at its end.  I really don't understand how tech support believes that sending me a new bios chip will help when I'm running off the 1.01 side and it is misbehaving in a similar fashion to the 1.10 side.  IMHO this mb is fubar and they should immediately send me a replacement along with a shipping label to return this one with.

Every time a drive is accessed now my mouse freezes in place for a few seconds and it doesn't matter if it's a hd or optical.  As long as a drive is being polled my mouse is stuck in place.  This is just unreal.

I am trying to think of what could be causing the frustrations.  The obvious things, like checking to make sure the USB drivers are up to date, and the firmware for the peripherals are all up to date as well.  
 
I am unfortunately at a loss though :-(

Mine Z87 Singer seems to be pretty stable... i've updated to 1.0.9 driver yesterday no problems... maybe you need to RMA your mobo.

I received the new bios chip today and reluctantly installed it and then the fun began.  As it turns out the bad bios chip is really the one that is hard wired to the mb so it is the one with 1.10 on it.  When I installed the new one it also had 1.10 on it and then my pc wouldn't boot nor would it see my ssd.  Then I had to go back and detach all of my hd's until only the ssd remained and then it would boot from it.  It also refused to show all of my hd's nor would it allow me to select any boot drive except for the one it decided it wanted to show hence the detaching of cable so that only the ssd remained.  I was able to move around the bios with a mouse until I clicked on the overclock tab to check cpu settings and then it froze up so I had to play with it and finally managed to move it over another tab which I was able to click on a couple of times before it accepted it and moved me.  Once I got off the cpu tab I was able to move around with the mouse again.  I'll be glad when the replacement mb gets here and I hope that it behaves correctly.
 
Edit:  Now this new bios has started dropping hard drives from my system forcing me to reboot to get them back.  I appreciate evga sending me a new bios to try but it obviously doesn't work very well with my malfunctioning hardware.
Well to add insult to injury it started bsoding so I had to shut it down and reinstall the old bios chip.  I did noticed while I was in there that the chipset heatsink was exceptionally hot which is unusual especially with the large side fan I have in my cm haf 932 case blowing on it. 
 
 
And now it bsod's with the 1.01 bios chip reinstalled.  I might have to reinstall my x58 classified if this keeps up.

Alright the bios with 1.10 on it will not boot my system just like the old board so I have to run off 1.01.  This board also doesn't see my intel 520 ssd unless I unplug all other hd's and come back up with it and the optical drives.  The marvel controllers will not allow my bdrw's to work at all so I have to keep them plugged into the intel sata ports.  I still have the same opinion of this board as I did before and it is not up to the same standard as the other evga mb's I've had.  Never before have I had to go through so much junk to get one to work with my gear.  Yes I have this system loaded up with drives but it shouldn't matter and the bios should allow me to swap boot drives without having to unplug everything.   Bios 1.01 did give me one bsod right after I fired it up for the first time but it hasn't happened again.
 
I also find it odd that almost all manufacturers with the z87 and 97 chipsets have dual bios and most with a user replaceable socket for one of them.  EVGA needs to test their boards with all drive ports populated and a mix of optical, mechanical and ssd's.  Also the side with bios 1.10 is very slow to come up and when I say that I mean I sat there and stared at a black screen with a green triangle on it for almost a minute before the rest of it came up but it will not boot with my drives.  Every time it starts to load windows it will reset itself so it just loops unless I manually shut it off and switch back to the 1.01 bios.  This is what happened on the old board just before my Samsung 840 pro froze up and they finally replaced it.  Why does the cpu tab always freeze up with bios 1.10 when I am looking around checking the settings?  I have run the latest version of the intel processor test and there is no problem with my cpu so I know that the problem is with the motherboard and since this is the second one to exhibit these problems there is a problem with the chipset and/or the bios.
 
I'm sorry but I cannot with a good conscience recommend this motherboard to anybody and if you are contemplating buying one do yourself a favor and stay away from this one.   If you do a Google search for z87 chipset problems you will get a rude awakening.  At least I haven't had my mouse freeze up in windows when the drives are accessed.  FYI there's a well publicized bug in the z87 chipset pertaining to the usb and drives being dropped but it was only supposed to affect usb drives unlike what my original mb did. 

This is interesting.  I swapped in the other chip with 1.01 and flashed bios 2 from 1.10 to 1.11 and it actually booted up my system.  Switched to bios 1 and flashed to 1.11 and it refused to boot my system several times.  I let it loop a few times and then suddenly it started booting my system.  I had to keep unplugging all my hd's so that the intel 520 ssd was the only drive attached to force the bios to see it as the boot drive.  After all of this I decided to leave the other bios chip alone so I wouldn't be pressing my luck.  This is absoulutely insane and I've never had to do anything like this before with a motherboard from any manufacturer and I've been building my own pc's for almost 20 years.

I tried multiple times to come back up on bios 1 and it just kept on dropping my ssd after a second or two and then reposted so I switched to bios 2 and after a couple of loops it allowed me to boot so here I am.  There is most definitely a problem with this board although I cannot put my finger on exactly what it is that prevents it from consistently loading windows with my intel ssd after it posts.  I have tried setting the sata controller to both the default hard drive and solid state drive and the problem exists with both settings.  I've tried enabling all of the usb hand offs and that just resulted in a non functioning keyboard, which is a Logitech G710+.  I am very frustrated by all of this especially with the latest firmware that is supposed to aid in stability.  My mouse even froze up on the overclock tab just like it did on the old board and it shouldn't matter which settings tab I am on when viewing or setting the bios.
 
I don't understand why the board ran fine after I flashed it and now it has turned stupid especially when I did not change any of the settings and everything is stock.  I run xmp 1 on my corsair memory which is the stock setting for it.  I will say that I am thoroughly convinced that the underlying problem is with the z87 chipset and its usb flaw which was exhibited by my first mb when my kb and mouse would act up when the drives were polled.  Unfortunately I have flashed both the onboard and socket bios to 1.11 but somehow I feel like if I go get the other bios chip and install it that the same thing will happen.
 
EVGA your programmers need to take a hard look at why this board doesn't have consistent behavior each time the power is applied.  I have never in my life owned a motherboard that did not do the same thing each and every time the power was applied and the post process was completed until this one.  It handles the boot drive, ssd and velociraptor, differently with each post and this one will drop either one in the exact same way each time.  Something changed from bios 1.01 to this latest version that is causing the board to mishandle the boot drive and you need to find it.  For people with ssd's this can lead to controller panic which is what happened to my Samsung 840 pro ssd with the first board and it was supposed to be immune to that behavior.

This morning, after letting it sit all night,  the motherboard powered up the first time without incident.  Once it finished loading I tried restarting it and it also rebooted without incident.  I'm not one to press my luck so I let it go at that.  When super Tuesday rolls around, you know the second Tuesday of every month when Microsoft rolls out their windows updates, we'll see what happens when it has to reboot multiple times.

This morning it took two times through the post process for the board to boot to windows.  The very first time it started to load windows then dropped the drive.  Funny thing is that when it actually stayed connected to the boot drive I didn't get an error message and boot option menu from windows like I usually do when there's a failed boot.  There's definitely something wrong with every bios I've used since 1.01 that prevents the boot drive from staying connected while windows is loading.  Seems to me that they traded the 1.01 hang on restart for dropping boot drives.