The dreadful - Windows: Delayed Write Failure

I have searched on Google and everywhere else regarding this issue. I am stuck in the bind because no solutions worked for me so far.
I am having issues with Delayed Write Failure with two of my WD800JB drives that are managed on RAID Controller, which are obviously shown as one drive.
Western Digital suggests the following solutions:

* The IDE cable is a 40-wire instead of the required 80-wire, 40-pin cable.
This can't be because the cables are correct

* The Enable write caching on the disk feature for the drive is turned on.
I am not given such option b/c both drives are on RAID

* The BIOS is configured to force faster UDMA modes than the EIDE controller can support.
Can't find this option. I didn't make any changes or touched my BIOS in months.

However, I recently tried to change my power supply from 310W to 450W, but the new one didn't work so I returned it.
So now I am at 310W again. I also added another DVD-RW Drive to my system.

So I am just wondering if maybe this has to do with power supply. Or if I completely format the drives would help anything? Or should I return them to the manufacturer?

Here are my system specs:

Windows XP Professional 5.1.2600 (WinXP Retail)
Intel Pentium 4A, 2566 MHz (19 x 135)
Asus P4B533 (6 PCI, 1 AGP, 3 DIMM)
Intel Brookdale i845E
Matrox Graphics Millennium G550 AGP (32 MB)
Creative SB Live! Sound Card
Standard Dual Channel PCI IDE Controller
A347SCSI SCSI Controller
HPT372A UDMA/ATA133 RAID Controller
WinXP Promise Ultra133 TX2 (tm) IDE Controller
Floppy disk drive
WDC WD800BB-00CJA1 (74 GB, IDE)
WDC WD20 00JB-00GVA0 SCSI Disk Device (186 GB)
HPT37x RAID 0 Array SCSI Disk Device (149 GB) 2x WD800JB
HL-DT-ST DVDRAM GSA-4163B
SONY DVD-ROM DDU1621 (16x/40x DVD-ROM)
2x 512 DDR
Realtek RTL8139 Family PCI Fast Ethernet NIC
1394 Net Adapter
DVStorm-RT

 

More power would definitely help, I'm sure someone will be along to be more specific however this is a given.

Have a look at this


http://www.jscustompcs.com/power_supply/

My result is about 400 Watts with almost everything regular plugged in, got a 550W just to be sure. I thought not much point in lashing out on great parts if you don't get the basics right.

Just sayin'

 

gonna have to pick one up soon.