Trouble With my New Graphics Card and CPU

liquid_cheese

liquid_cheese

liquid_cheese

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Joined
1 Dec 2008
Posts
4
Relevant Hardware Specs:

MOBO - GA P35C DS3R
PSU - Corsair HX620V
(old) GPU - nvidia 8800gts 312mb
(new) GPU - EVGA GeForce GTX 260 "Core 216 Superclocked" 896MB GDDR3 TV-Out/Dual DVI (PCI-Express)
(old) CPU - E6550
(new) CPU - E8500

(all from OCuk)


Hi. I bought a new GPU and CPU from OCuk recently and I'm having quite a bit of trouble getting them to work. I installed them both, tried turning it on and all I got was a couple of seconds of action then nothing, wait 5 seconds and it starts, then it dies again (and this went on until I got no power whatsoever). Tried changing back to my old GPU but I got the same thing. Changed back to the old CPU with the old card and it booted up fine. I then tried the new card with the old CPU and I got constant power but neither of my monitors picked up anything (tried one then the other on both DVI connections, always just a black screen).

I thought it might be a heat thing (too hot so the CPU instantly shuts the whole computer down...?) so I changed out the TIM that came on the new CPU with some arctic silver, but no luck.

So i'm thinking it could be my PSU. Because the card says it requires something like 38A on the 12V rail, but I looked in my PSU's manual and it apparently has 3 12V rails each listed with 18A (I dont have the manual with me but it was something like 12R1, 12R2, 12R3; something like that). I'm not sure if these combine to give the GPU the 38A's it needs because this is beyond my knowledge/understanding of computers.


Some more info: at first the graphics card wasn't sitting completely flat on one side due to my case, but i've got it flat into the PCI-E slot now. The PCI-E slot is not PCI-E 2.0, however according to the manual it's backwards compatible. I also tried to connect the GPU with both 2 6pin PCI cables and with 4 harddrive(?) connectors and the two adaptors that came with the card, same results with both. The drivers for my old hardware are still on the harddrive (I was going to go straight to a format/install from a Vista disk).


I'll be calling the OCuk supportline when it opens again tomorrow morning, but I was hoping from some extra help so any you can give me would be great (sorry for the wall of text).
 
The BIOS may need an update to reconise the new cpu.
http://www.gigabyte.com.tw/Support/Motherboard/CPUSupport_Model.aspx?ProductID=2551

I would say your PSU is fine that GPU, only thing I can think off is a faulty card, just to confirm you connected both PCI-E power cables to the card direct from the power supply and are firmly in place.
Does this card use 2 x 6 pin or 1 x 6pin and 1 x 8pin.

Welcome to the forums, remember to read the FAQ :)
 
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I'd suggest updating the BIOS, also you could try resetting the BIOS, not sure if any old overclock settings could still be on there? possibly not but worth a try!

and as RJC said, its obvious but make sure all the power connections are in nice and tight!

oh, and hi!

EDIT: nice upgrade as well! should see a nice performance increase in games there! - once it's working
 
Thanks for the quick replies. Actually my old overclock settings are still in the BIOS, stupid of me to not reset that; so I guess i'll do that and if atleast the CPU doesn't work I guess i'll flash it like you guys said. Looking at my MOBOs supported CPU list in more detail it does in-fact seem as though the E8500 is only supported with a recent BIOS version (i'm assuming that if I download the most recent one, F12e, it will support the CPU even though in the listing it says it is supported by version F10, an older version...).

Yep, made sure the power connections were all secure and tight. I think the card might be broken like you said RJC; sucks, I really wanted to have this rig up and running for the weekend.

The card requires 2 6pin PCI cables; I think it's the 280 that needs 1 6pin and one 8pin.

Again, thanks for the quick replies; i'm not at home right now but when I am and have tried these fixes out i'll post back.
 
I know it's slightly off-topic, but I have the same mobo and old gfx as you and i'm looking at buying a similar new gfx. If you get it working could you let us know how much of a jump it is to the 260 i'd appreciate any comments you have.

Thanks
 
Flashing the BIOS worked (GPU and CPU working), thanks for your help, much appreciated. I'm happy with the CPU, overclocked to 4ghz and it doesn't go much over 45c under load (case is an antec 900); GPU seems to be pretty decent, however it gets pretty hot after about half an hour of Fallout 3 (70c, I read they can run at 75c max but my 8800gts never went over about 55c, if that), which runs well, I would estimate at probably 40-50fps most of the time. WoW fps has increased by about 70%.

So it seems like a pretty good upgrade; however I ran 3DMark Vantage and although getting what seems like a pretty decent CPU score my GPU score was pretty abismal:

http://i36.tinypic.com/2803zbn.jpg


I found this surprising because I thought my GPU was better (as it is according to Vistas Windows Experience Index). The benchmark was run on 'Performance' mode btw.

Anyway, thanks for your help getting the things to work.
 
"I know it's slightly off-topic, but I have the same mobo and old gfx as you and i'm looking at buying a similar new gfx. If you get it working could you let us know how much of a jump it is to the 260 i'd appreciate any comments you have."

Yeah I'm pretty happy with the card; tbh though I would have expected more for the money, maybe i'm just cheap (or the card isn't working optimaly, see above post)

Also sorry for taking so long to post back, i've been really sick this weekend.
 
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