Fix speaker on dell t3500

https://www.dell.com/support/article/ca/en/cadhs1/sln288786/precision-t3500-t5500-t7500-workstations-diagnostic-lights-and-beep-codes?lang=en

The lights alone don't tell enough to tell you how to fix it ACPI S3
Suspend to RAM Windows Standby State.
Does it boot if you use a recovery disk or an emergency boot DVD or USB stick?
Detach all the hard drives and peripherals, pull out all the memory except one, Try again. What is the result?
Try it with a different memory module alone, Repeat.
See if you can isolate a bad memory module
Or it could be a bad motherboard. Shut down and unplug, Inspect the capacitors on the board. are any of them swollen, split or leaking?

https://www.dell.com/community/Desktops-General-Read-Only/Precision-T3500-error-3-4-loud-fan/td-p/4593093

https://www.dell.com/community/Precision-Fixed-Workstations/T5500-diagnostic-lights-3-amp-4/td-p/6066338

download and install BIOS and Network Driver for the system on dell site http://www.dell.com/support/home/us/en/04/product-support/product/precision-t3500/drivers

seems memory module failure , no.1 module
http://www.dell.com/support/article/au/en/audhs1/sln288786/precision-t3500-t5500-t7500-workstations-diagnostic-lights-and-beep-codes?lang=en

scroll down page to Diagnostic Beep codes

It's simple. If you still have a problem please take a look at manual in pdf file for this dell t3500. You can find it here for example:
User manual for Dell T3500

An amber light means your computer isn't reading the hard drive or CD right, Take it to a professional to get this corrected

I believe it to be an EATX form factor.
Extended ATX,

http://en.wikipedia.org/wiki/Motherboard_form_factor#Comparisons

Not advertising for seller, nor website. Just more reference material for you,

http://www.ebay.com/itm/New-Dell-K095G-Motherboard-Precision-WorkStation-T3500-/400129302707?_trksid=p3284.m263&_trkparms=algo%3DSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%26otn%3D21%26pmod%3D121020255810%26ps%3D54

For additional questions please post in a Comment.
Regards,
joecoolvette

Service manual shows how: http://downloads.dell.com/Manuals/all-products/esuprt_desktop/esuprt_dell_precision_workstation/precision-t3500_Service%20Manual_en-us.pdf?c=us&l=en&cs=&s=gen

The part model is listed in this entry at the dell community forum: http://en.community.dell.com/support-forums/desktop/f/3514/p/19420506/20243342.aspx#20243342

http://support.dell.com/support/edocs/systems/wsT3500/en/SM/td_opthd.htm

All the info you need. Very easy to do.

If the drive won't open you can use an unfolded paperclip and insert it in the small hole (paperclip size). Push in and it will pop out.

Go to the BIOS settings and make sure the drives are recognized by the BIOS. Ensure they are set as either Master or Slave drives depending on where they are fitted.
Your OS should, once the BIOS picks them up, format as required.