Computer boots at repair shop but not at home

[Midknyte]

I highly recommend purchasing a UPS. If the UPS doesn't charge properly or constantly sounds an alarm, you'd know there is something wrong with the power lines. Hard to say at this point.

[Liracy]

I highly recommend purchasing a UPS. If the UPS doesn't charge properly or constantly sounds an alarm, you'd know there is something wrong with the power lines. Hard to say at this point.

Okay. I'll see about getting a ups tomorrow, will update with the results. If that fixes it what would you say is the issue?

I never had this issue with my Radeon 7700 hd series. Even now I can plug it in and the computer works fine. Thoughts?

[Midknyte]

If the UPS resolves the problem, then there is probably something wrong with your house wiring. I'm not an electrician, so I can't say for sure.

I never had this issue with my Radeon 7700 hd series. Even now I can plug it in and the computer works fine. Thoughts?

I thought you said it didn't power up at all at home? If you're having problems only when you are switching video cards, that's a different issue. At that point, it could be your PSU also.

I can't look at newegg links, since I'm behind a proxy right now. It would be easier if you just posted the make/model. Maybe someone else can assist with those for now.

[Liracy]

If the UPS resolves the problem, then there is probably something wrong with your house wiring. I'm not an electrician, so I can't say for sure.


I thought you said it didn't power up at all at home? If you're having problems only when you are switching video cards, that's a different issue. At that point, it could be your PSU also.

I can't look at newegg links, since I'm behind a proxy right now. It would be easier if you just posted the make/model. Maybe someone else can assist with those for now.

Think it could be the PSU even though it boots fine at the repair store?

But yes, sorry I didn't note it earlier. It boots fine at any location with my 7700. It only refuses to boot once I have installed the MSI GTX 970.

What is the best way to post my specs? I only know of using those links.

[Liracy]

At this point I am willing to throw money at it until it works.. but I would rather only throw money where it will help. It seems like if it boots at the store that its not a hardware issue.

[Midknyte]

What is the exact model number of your 7700 series card? 7730, 7750, 7770, or 7790?

Recommend PSU for the GTX 970 is 500W. What make/model PSU do you have now? If your PSU is below spec, that could be the problem.

As I stated earlier, a UPS would help to stabilize and condition the power to the computer. You should really have one anyway.

[Liracy]

AMD Radeon HD 7750 2GB PCI-e Graphics is the old card.
MSI GeForce GTX 970 GTX 970 GAMING 100ME 4GB 256-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support ATX Video Card is the new card.

My power supply is 600 watt but I don't know the make or model, the way it is inside my case has the label against the back of the case in a very odd way.


If it was the PSU why would it work 100% in one location and not at all in another? That alone makes me lean towards an electrical issue...

[Midknyte]

HD7750 only requires a 300W PSU, so it's way less draw than the GTX 970.

600W sounds like it is enough. Make/model would help, though. Some brands are better than others.

It's a very bizarre case. At this point, I'd go with a UPS first. You don't need to get an APC, but you can use their calculator to figure out the VA size you would need.
http://www.apc.com/tools/ups_selector/

[Liracy]

HD7750 only requires a 300W PSU, so it's way less draw than the GTX 970.

600W sounds like it is enough. Make/model would help, though. Some brands are better than others.

It's a very bizarre case. At this point, I'd go with a UPS first. You don't need to get an APC, but you can use their calculator to figure out the VA size you would need.
http://www.apc.com/template/size/apc/index.cfm

Sorry... quite the novice, what is the difference between an apc and a ups?

[jdc2000]

APC is a UPS brand, one of the top ones. CyberPower also makes good ones.

[Midknyte]

Hmm. The calculator link seems to be outdated.
http://www.apc.com/tools/ups_selector/

[Train]

Something wrong with the url MK

http://www.apc.com/tools/ups_selector/


Well the google search that lead to that link works.
https://www.google.com/search?q=apc+...utf-8&oe=utf-8

[Liracy]

Just wanted to give you guys an update rather than leave you hanging. I got a new 680 watt PSU and the computer works just fine. I still can't explain why it was working at the repair shop and not at home, but I don't care anymore.

Thanks for the help! <3

[Midknyte]

Like I mentioned, some PSUs are better than others. A generic 600W might not perform at its full rating. The GTX970 has way higher draw than your old card.

In any case, you should invest in a UPS too. It's basically insurance against blackouts, brownouts, and surges.