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Normal serial keys will not work with N versions and visa-versa.

Hat tip to WinCert.Net for the original links

Dell Precision T7400 Workstation will not power up with ATI Radeon 5970 installed – PROBLEM SOLVED

I got my dream video card, the ATI Radeon 5970 Dual GPU monster and installed it in my T7400 however the system will not boot up, all I get is a quick spin of the fans and some sort of sound coming out of the power supply, kind of like “Brrrnt, click” which led me to believe that the PSU couldn’t handle my video card.

The video card requires both an 8pin and 6pin power plug. When I plug in the 8 pin, and the 6 pin and power up the computer, it’s a no-go as above. when I plugged in only the 6-pin power plug the PC sounds like it will boot, the fans power up but no display as I would expect.

I have tried this video card in both PCI-Express slots with the same failure as the result. The computer works fine with the Nvidia Quadro 3700 in it…using one 6pin power connector.   I took the ATI Radeon HD 5970 video card to a local computer store and had it tested ($15) since I didn’t have a spare computer to test it in and the video card passed with flying colors…

Therefore I figured that my 1000 watt power supply had a problem, so as a gamble, I ordered a replacement off eBay and received a working pull plus the wiring harness and totally replaced both which was a job to say the least!! Have you ever tried replacing the wiring harness? lots of work…   I got it all back together, crossed my fingers and prayed and tried it again and the same thing.. NO LUCK…

I put the Nvidia Quadro 3700 back in and the system powered up like a charm.   What on earth could it be causing this to happen? I REALLY want to get this video card working in this system…   I even tried a bios update and thoroughly looked at the motherboard and everything I could to see if there was any popped capacitors.. nothing…

SOLUTION: (after much reading online)

I found the solution and I’d like to mention it here to help others if they search for it..

A: The Dell power supply for the T7400 was designed to have five 12 volt rails @ 18 AMPS each and the video card requires about 45 to 50 amps to work correctly. The video power cables (the one with an 8pin and 6pin both on the same harness) seems to only provide 18 or so amps and the computer will not power up because the power supply’s protection circuit sees too many amps being drawn from one “rail” and immediately shuts off..

I went to Fry’s Electronics in San Jose and bought a couple adapters that helped me split the current draw between different sources, such as the Hard Drive cables and the video cables.

B: I have a small battery backup power unit and my T7400 was plugged into the backed-up portion.. when I got the video card to work, it would make a loud beep and after a few minutes cut power to my T7400 due to large current draw.. I plugged the computer into a “Surge Protected” but not battery backed up slot and since then have had no problems..

Now after multiple stress tests including FurMark, my graphics card is working great in this system.. It is due to an unfortunate design in the T7400 power supply and cabling.. Now that I have this resolved I hope someone else can benefit..

Get an adapter like this, use it to split the power sources for the 8 pin power connector and use the original 6 pin that is connected to the Dell provided 8 pin adapter, for the 6 pin slot… hope that makes sense… through trial and error you will get it right!

Here is a picture of the main adapter and also of the smaller adapter to change from the molex to the Sata power connectors in my system: (I needed one of the adapter on the left and two of the adapters on the right.

Dual Molex to PCI Express 8pin adapter            Sata to Molex power adapter

I hope this helps someone!

My ICYDOCK MB994SP-4S review for my Dell Precision T7500

Recently I acquired a few used SAS 2.5″ 10K RPM drives and wanted to use them. I scoured the internet a few days and wound up deciding on the IcyDock MB994SP-4S 4 in 1 SAS / SATA Hot Swap Backplane RAID cage. I shopped around locally and found it at Central Computer on Stephens Creek BLVD in San Jose for about $65.00 plus tax.

I got it home, carefully installed all the SAS drives which fit perfectly and then installed the unit in my Dell T7500 Workstation only to discover that the plastic bezel that covers the 5 1/4″ drive bays is a little too large and will not allow the drives to be inserted or removed correctly without fighting with the Bezel. This I cannot blame on the IcyDock product but it was almost a fail for me. I decided to leave it as is and try it for a while. Unfortunately the drives got way too hot after about 15 minutes and I was forced to pull the unit out, carelly remove the drives and pack it back up to be returned.

Also, note that the screws that mount the 5 1/4″ form factor cage into the computer are very small and shallow and do not come close to being adequate to secure the cage in my computer. Being a Dell, the system is different also and I could barely get one tiny screw to hold the IcyDock unit in..

I do not reccomend this unit for Dell T7500 computers and I do NOT reccomend using SAS drives in this unit as they get too hot even with the fans..

– Wesley

Windows 7 will not boot without install DVD

I encountered this issue today and even though I am a 15 year IT veteran, in my haste I re-installed Windows without looking for a solution first:

After a fresh installation of Windows 7 Professional everything seemed fine, I updated all the drivers put my favorite utilities back in and then saw that I left the Windows install DVD in the drive.. I removed it and then restarted after more updates and I got an error that Windows could not boot and I should run the repair tool from the disk..

I restarted the computer with the install DVD in the drive, got distracted and missed the opportunity to press any key to boot the dvd.. however Windows booted!! I thought that was weird, and too good to be true.. I removed the DVD rebooted and tried again… FAIL!!

So…. Like a DOPE… I re-installed Windows 7 all over again thinking something was corrupt and BAM!!! same damned problem… so finally I put the disk back in the drive, booted and Googled “Windows will not boot without” and up pops “Windows will not boot without the install DVD” Selected that and the rest is history!

All I had to do to fix it was to change the SATA cable order on my hard drives. The boot hard drive was plugged into Sata port 1 and my data drive was plugged into Sata port 0…

Swapped the two, removed the Windows & install DVD and booted just fine! ALSO this same thing happened to me on another computer and I ran EasyBCD which is FREE and then found that for some reason the boot drive was set to D so I changed it to C and rebooted and everything worked fine.

Hope this helps someone!