New build not displaying too monitor

 Hello

So I recently tried my first boot up on my new desktop. All the fans started up but didnt hear any beeps and nothing appeared on the monitor except for No Signal message. So i checked all the connections and the cords but I get the same response. The monitor is connected by a VGA cable into an adapter (which came with the video card) and then into the back of the card. The card is plugged in as with everything else I believe. My rig is as follows

Acer X223WBD Black 22IN Widescreen LCD Monitor 1680X1050 2500:1 5MS VGA DVI HDCP
Antec Nine Hundred Mid Tower Gamer Case
Corsair CMPSU-620HX 620W ATX Triple 12V 50A 24PIN ATX Modular Power Supply
Asus P5Q Pro Atx LGA775 P45 DDR2 2PCI-E16 Crossfire 3PCI-E1 2PCI SATA2 Sound Gblan Esata Motherboard
Intel Core 2 Quad Q6600 Quad Core Processor LGA775 Kentsfield 2.40GHZ 1066FSB 8MB
Xigmatek HDT-S1283 Direct Touch 3 Heatpipe Heatsink AM2 LGA775 S754 S939 S940 W 120MM PWM Fan
Seagate Barracuda 7200.11 640GB 3.5IN SATA2 7200RPM 32MB Cache
Patriot Extreme Performance 4GB 2X2GB PC2-6400 DDR2-800 CL4-4-4-12 EPP Dual Channel Memory Kit
HIS Radeon HD 4870 750MHZ 512MB GDDR5
Zalman VF900-CU Copper Dual Heatpipe 1350-2400RPM 18.5-25.0DBA VGA Cooler
Samsung SH-S223F Black SATA DVD+RW 22X8X16 DVD-RW 22X6X16 16X/12X DL INT DVD Writer OEM
Microsoft Windows Vista Home Premium Edition 64BIT DVD OEM

Thank you for any suggestions

Try to reseat your video card. After that pull all but 1 stick memory and try. If still nothing it sounds like you may be grounded to your case. Take it out of the case and put it on say the motherboard box with a static bag and try it and see if it posts. Good luck

Fold On!!!!!

Yeah sounds like a grounding issue to me

That worked, taking out one of the RAM sticks. Why is that? Can i put it back in later on?

Thank you, now for installation

Put them back in one at a time and run memtest on each. You might have a bad stick of ram.

You got a bad stick sounds like a rma is in order.With that new gear a good way to test it while have alittle friendly competition is by Folding@home. Not to mention you could join the HotHardware Folding@ Home Team Contest and could even when some more gear

Best of luck

Hi

So I have some developments; the computer appears to run fine until i turn it off. Once its off (or rebooting) it wont display anything on the screen (yet fans and lights go on) until i wait and try again in a few hours. So I generally have to wait over night if I want to reboot or such. The case is an Antec 9000 so cooling is good; the 4870 is 52C (which is normal i read), and CPU is 31C-36C across all four. So all looks good and decent i believe. I have also moved to just using one stick of RAM

So any ideas on a cause?

Thanks

Have you put it all together outside the case to see if that fixes it?

I had tried that too. And i also plugged the old gpu fan into the card and it also works - so the gpu should be ok then

Try upgrading tour bios maybe

I shall try a bios update, its just that i'm worried about screwing that up. Another symptom - it just went blank and stopped displaying when i was reading a website, but the computer was still on and all. So now i have to wait a few hours until it will restart :(

Do you have another PSU you could try? It might be a power problem. If its that unstable then hold off on the bios update.

Kythoon:

I shall try a bios update, its just that i'm worried about screwing that up.

And rightfully so, Kythoon, as BIOS updates are always risky! Mess-up a BIOS update and your motherboard can become useless. If it boots, even just sometimes, it is unlikely that a BIOS update will fix the problem, IMO. Since it works fine if you let it set for a while, I am inclined to think it may be a thermal issue.

Unfortunately i dont have another PSU to use - but could this one be bad? It is new and from a good company. But ya, scared about flashing now since of power issues. Can a computer "turnoff" automatically when it gets too hot? Not that it is getting hot, but it might explain it.

Kythoon:

Unfortunately i dont have another PSU to use - but could this one be bad? It is new and from a good company. But ya, scared about flashing now since of power issues. Can a computer "turnoff" automatically when it gets too hot? Not that it is getting hot, but it might explain it.

Most PC parts fail right away or years later. If a computer gets to hot it will cut itself off. What are you using to monitor temps? Might wanna try resetting the cpu cooler.

A variety of programs; Core Temp, and HWMonitor. How do i reset the cpu cooler? Unplug it?

I'll see if i can find another psu to try out

Take it off the cpu and reset it. How are your nothrbridge temps? Might try taking the side of the case off and setting a fan right in front of it.

You say your PC runs fine with the old VGA card pluged in the slot? Or does it still doing funny things? If it acts normal then i would say its either a Power problem, mostlikley not enohg power supplies on the Vrails or the new VGA card has heationg problems. But i would be more inclined to say its a power issue since you have yet to say any thing about artificats on the screne. I read that only one of you RAM modules work? have you tired moving the slots on them to see if they all work? If all the ram works and you are having the problems then i would say that its the MOBO and to RMA it.

About the VGA, I removed the fan from the 4870 originally but i reconnected it too see if the card was getting power and it is. And there are no artifacts on the screen. The RAM was having issues because the mobo is not setup for dual channel I believe, so there in only 2GB atm in there. I'll have to flash it to make it dual I think.

I stopped in Canada Computers today to pick up MS 2007 and I asked about my computer. And they also think its a PSU problem; so i might buy a new one since the retailer for this one is across the country and i dont want to wait that long if its not a problem.