No beeps or display

[l1a1]

Hi,


Monitor flashes "no signal" and goes black. There are no beeps and the only sounds I can hear are the fans.

I was browsing the web about a week ago when my monitor flashed "no signal" and went black(tower was still on and sounded normal). After a bit of trouble shooting I assumed the MOBO had gone. I deicided to take the opportunity to upgrade and bought a new CPU, RAM, MOBO and a bigger case. Upon finishing the installation and turning the monitor on it flashed "no signal". There were no beeps and all the fans, LEDs and the CD drive all seem to be working fine.

I used all 9 standoffs provided so I'm fairly certain I haven't fried the MOBO. The only parts that haven't been changed from the last build are the HDD, CD drive and PSU. The monitor and its cable definitely work as I've hooked them up to this laptop.

Intel Core i5 3470 3.20GHz
Gigabyte GA-Z77-D3H
G-Skill 8GB (2x4GB) DDR3 1600mhz Sniper Memory Kit CL9 (9-9-9-24)
Stock cooler for the i5
XFX HD 4870 1GB DDR5 although once everything is up and running/I get my after market cooler I'll be using my 560TI
OCZ ModXStream-Pro 700W
http://www.ebuyer.com/product/159390
W7 home prem.
First case http://www.ebuyer.com/product/115479
Current http://www.ebuyer.com/233740-coolermaster-elite-430-all-black-interior-mid-tower-case-with-side-window-rc-430-kwn1
The 4870 has one of these on it: http://www.arctic.ac/en/p/detail?sArticle=22.%3F

I've tried:
Before purchasing the new MOBO/i5/RAM/case I bought a cheap(new) MOBO from Ebay and had the same problems, which led me to assume it was in fact the CPU that had become faulty

With new CPU/RAM/MOBO
Onboard graphics with a VGA cable and monitor that definitely work
Using 1 RAM stick at a time in all 4 slots
No RAM
Disconnecting the CD drive
Disconnecting the HDD (although I'm clueless to if a PC can boot without it?)
Resetting the CMOS by removing the battery




Read these already:
http://www.tomshardware.co.uk/forum/261145-13-perform-steps-posting-post-boot-video-problems
http://www.tomshardware.co.uk/forum/264823-13-progess-troubleshooting

Any help would be appreciate, thanks.

 

[COLGeek]

Swap your PSU with another, if available. Your initial error sounded like a typical heat/power issue.

However, you swapped components and kept the original PSU. OCZ produces some rather dodgy components from time to time. Corsair and Seasonic are the way to go with PSUs.

 

[hyrule571]

COLgeek I'm with you. I was thinking the same thing as this guy. Your power supply seems to have enough power for the small stuff like lights and fans, but that's obviously not enough to get up and running. Your PSU should get replaced. Trust me, this exact same issue happened to me before.

 

[l1a1]

Seems to be fixed.
Got in from work this morning and installed the new PSU (a Corsair as suggested - Corsair CX 750W) MOBO beeped and the screen prompted me to setup the BIOS. Too tired to actually go through all that so I'm going to bed. But I assume getting prompted for BIOS means everything is running fine and nothing got fried.

Thanks for the help.

 

[COLGeek]

Seems to be fixed.
Got in from work this morning and installed the new PSU (a Corsair as suggested - Corsair CX 750W) MOBO beeped and the screen prompted me to setup the BIOS. Too tired to actually go through all that so I'm going to bed. But I assume getting prompted for BIOS means everything is running fine and nothing got fried.

Thanks for the help.

That is progress! Good luck!