Sudden Shutdowns and restarts

[Haywalker]

Hi guys, so a month ago i decided to switch from a single monitor to a dual monitor setup so i picked up two used dell P-series monitors a 22" and a 24" and ever since then all hell broke lose, any time i connect both monitors and start running programs on both. my computer shuts down suddenly and restarts.

 

For example if i full screen a youtube video on the 22" and browse the web on the 24" the computer just restarts, no error messages or anything. if i disconnect the second monitor and only use the 24" it runs fine, and gaming is completely out of the question.

 

So i was thinking it could be a PSU issue but a PSU would shut down with one or two monitors, then i thought maybe its a GPU issue and i am running out of GPU Memory since its a 1GB card but i am not getting any memory errors. i've already updated the GPU drivers to the latest stable version but i still can't figure out the source of the issue.

 

 

My setup is i7-950, AMD Radeon 7770 (Note that both monitors are connected via HDMI to the GPU), Thermaltake 730W.

[Hammez]

Could it be RAM Size? 

[Haywalker]

2 minutes ago, Hammez said:

Could it be RAM Size? 

I have 12 GB of ram i don't think it's causing an issue

[19_blackie_73]

It is more continous load on the gpu so... Maybe the 7770 developed an issue over time?

Did you try switching the ports round or just using the dell? Are there any other options to use other ports to try out?

[ki8aras]

yeah probably one  of the ports is short circuiting

 

[Hammez]

1 minute ago, ki8aras said:

yeah probably one  of the ports is short circuiting

 

but why would the whole pc restart if it's just a gpu port short circuiting?

[ki8aras]

Just now, Hammez said:

but why would the whole pc restart if it's just a gpu port short circuiting?

because it temporarily shorts out the gpu causing a shutdown similar to when your overclock has gone too far

[Haywalker]

3 minutes ago, 19_blackie_73 said:

It is more continous load on the gpu so... Maybe the 7770 developed an issue over time?

Did you try switching the ports round or just using the dell? Are there any other options to use other ports to try out?

 

1 minute ago, ki8aras said:

yeah probably one  of the ports is short circuiting

 

well the card has very little in the way of ports it has 1 HDMI 1 DP 1 DVI. so i have an (HDMI to HDMI) and (DP to HDMI converter for the other port) also the cables are new unless they shorting from the head of the connector next to the body of the case

[ki8aras]

3 minutes ago, Haywalker said:

 

well the card has very little in the way of ports it has 1 HDMI 1 DP 1 DVI. so i have an (HDMI to HDMI) and (DP to HDMI converter for the other port) also the cables are new unless they shorting from the head of the connector next to the body of the case

which of these ports are u using?

[Haywalker]

14 minutes ago, ki8aras said:

which of these ports are u using?

i am using the HDMI port and the DP. but for the DP i am using a DP to HDMI converter