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August 17th, 2019 13:00
Optiplex 790 no bios boot
Upgrading a optiplex 790s ram and harddrives. Switching from 8g ram to 16g and hard drives to ssd. Not able to boot bios, the dell boot bar loads halfway and stops.
It's giving a 1+2 light with blue power button indicating a expansion card failure. I've tried booting using only one ram stick, taking motherboard battery out and graphics card and nothing has changed. I no longer have the old ram or harddrives, pretty sure cpu and psu and motherboard are fine as it worked great earlier this week.
The ram is atech and specs are right for my setup, verified with a tech before buying. Not too tech savvy so kind of at a loss for what to do? Any help would be much appreciated.
Ricorardo
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August 17th, 2019 14:00
Ok so not sure what problem was, either my keyboard? Or the battery? But I took out battery on motherboard and tried to boot and i was finally able to get to bios boot page. But I also noticed my keyboard wasn't plugged in this time either lol so not sure which helped. Currently loading new windows and everything going fine for now though. Using a basic keyboard, not sure if my gaming keyboard could have been the culprit?
bradthetechnut
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August 17th, 2019 19:00
Hi @Ricorardo,
By any chance did you remember to put in a new CMOS battery (size 2032)? A low battery can cause all sorts of bizarre problems. With the age of the 790, it was probably about time.
Is your gaming keyboard wireless? Then it's good to keep a wired keyboard around just in case. At a point where an OS wasn't on your PC, it's possible a wireless keyboard could be an issue.
It's harder to tell from here if the gaming keyboard was an issue if the CMOS battery was low.
Cpt_Wolf
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February 23rd, 2021 13:00
You need PS/2 keyboard to boot to BIOS on your OptiPlex 790. F2 or F12 will not work with USB keyboard.
Gosh I'm surprised no one from Dell support could help you. It's just shameful on their part because they don't even know Dell products.
Now, Dell can I have job of one of yours support guys?