3 long red beeps , 4 short white beeps (any solutions ?)

[RAYKIM]

Dear community, 

I have purchased a new gpu ( rx580 ), when I first plugged it , it worked perfectly,  but the next day , when I wanted to boot the pc , it wasn't booting for some reason , and  it kept giving me that same signal for 5 times then it stops ( 3 long red beeps , 4 short white beeps ) I wish you guys can help me , 

ps: I have a 240w power supply ,which indicates that the max output is 400w 

[Paul_Tikkanen]

Hi:

Remove the card, and if the PC works fine off the onboard graphics the power supply is insufficient to power the RX 580 card.

AMD Radeon RX 580 Specs | TechPowerUp GPU Database

According to the video card specs, the recommended power supply is 450W and the card also needs a supplemental 8-pin power connector.

The power output of a 240W power supply is 240W.

The power output of a 400W power supply is 400W

You have to look at the power supply label to see what is specifications are:

Here is an eBay listing for a HP 240W power supply and it shows the maximum wattage for each component.

HP Elitedesk 600 800 G1 Z230 SFF Power Supply 240W 702455 702307 751884 702309 | eBay

If you look at the label illustration, it shows that the maximum power shall not exceed 240W.

[RAYKIM]

Well thank you sir , your help is greatly appreciated, according to your response I just need a new power supply (min 500w i guess) , but why did it work for the first time , and then it stopped working, and I wanted to know if there are some to do's to try before I get a new ps  

Ps : i have an hp Z240 tower workstation 

[Paul_Tikkanen]

You're very welcome. 

If the PC is working fine with the onboard graphics adapter then nothing should be wrong  

However I wouldn't be able to help you find a higher wattage power supply that will work in your PC, and recommend that you start a new discussion on that topic. 

I only install graphics cards that work with the power supply the PC came with.