how to attach 6 devices ? display going blank

My system configuration is as follows :

MSI 865PE Neo2 motherboard, Intel 3 GHz Processor, 80GB harddiskdrive,
Geforce graphics card, creative sound card, floppy drive and a
LG CD rom and LG CD writer and a LG flat Monitor.
My cabinet is well ventilated and doesnt have any heating problems.

1) - i want to attach 2 more drives - LG DVD rom and a DVD writer.

I tried attaching them in the following manner -

IDE 1 : Primary master Harddisk and LG CD rom as Primary slave
IDE 2 : DVD Rom as Master and Samsung DVD writer as Slave.
IDE 3 : LG CD writer as Master.

Now after attaching these everything else was working fine except
for the cd writer... whenever i tried burning any cd in the cd writer
it gave the following error :

" A problem has been detected and windows has been shutdown to prevent
damage to your computer.

Driver_IRQL_Not_Less_Or_Equal

Technical Info :
Stop:0X000000D1(0X00000004,0X00000006,0X00000001,0XF8595380)
ULSATA.SYS - address F8595380 base at F8595000, Datestamp 3e33a785"

-------------

After the error i removed the CD writer and attached the other 3 drives
CD rom, DVD rom and DVD writer and the system is working fine.

Can i not install all the four drives together ?? does my motherboard
support six drives including harddisk and floppy drive ?

-------------

2) - Also there is another problem, sometimes my display screen goes
blank for a second or two and then it comes back on its own. the processor
remains ON but the display goes off. sometimes i have to restart the
computer to get the display back. I removed the graphics card and
refitted it yet the problem persists.

It gives the following error :

" Error report

C:\WINDOWS\Minidump\Mini032005-01.dmp
C:\DOCUME~1\Luv\LOCALS~1\Temp\WER2.tmp.dir00\sysdata.xml


Error signature

BCCode : 100000ea BCP1 : FBE49C90 BCP2 : 812EC628 BCP3 : FFADB778
BCP4 : 00000001 OSVer : 5_1_2600 SP : 0_0 Product : 256_1


Earlier i thought this error might be due to the 4 drives that i attached
but even after removing one of them the display problem exists.

--------------

Please help me solve this problem.
i know that i can use DVD rom and the DVD writer and that
will solve my purpose but what if i want to attach a cd rom and a
cd writer too along with the hard disk and the floppy drive, can this
not be possible and how do i go about it ?

Please Help me.
Vaishali