No signal detected...

[Shemo]

This has just happened recently over the past 2 days where I'll be playing COD4 and the screen will go black and say no signal detected...I can restart the PC and it functions fine....What do you guys think? Overheating? Just updated the drivers last night.

[ccperf721p]

I would definately check vid card temps, nvidia's operating range is wishful thinking on there part, I've seen a few cards start to have problems around 75C..

[Shemo]

Here's my temps at normal conditions *instant messaging, browsing, email checking*

http://users.rcn.com/andrewshemo/pc/Image1.jpg

I'll get a few when I'm gaming tonite...

Now, when I was in the process of checking my PC as to why my computer last had issues, I removed the PSU which meant I had to remove the top 80MM fan. I haven't put it back in yet because well I'm lazy. =( Now, do you think this would be a cause of a crash...1X 120MM Silverstone fan pulling in air @ 110CFM and 2X 120MM Silverstone fans exhausting the air @ 110CFM...the top fan was an 80MM Silverstone exhausting air at about 75CFM....I have yet to put the side panel of my case on the computer and I've had it for about 6 months now....That has 4X 120MM Silverstone fans on it @ 110CFM.

[ccperf721p]

Temps look okay under your normal conditions, we'll see what it does under load.

Without the side on the case the vid card will get mostly fresh air so I don't see not having the top exhaust making much difference.

The original thermal paste used on the GPU is not of great quality, replacing it with Artic silver Ceramique can net some degrees.

Also try to compare temps to fan speed, having it spin to full speed at a lesser temp than the factory settings can help a bunch..

[Shemo]

when you made your last statement..did you mean the case fans or the gpu fan? It runs at 20% stock and I bumped it up to 80%.

[ccperf721p]

I meant the GPU fan. 80% should be suffiecient to keep it cool..

[Shemo]

Ok, so here are 2 temps I recorded while in-game...these weren't extensive gaming times as I've gotta run soon...

15min of play:
http://users.rcn.com/andrewshemo/pc/15min.jpg

45min of play:
http://users.rcn.com/andrewshemo/pc/45min.jpg


looks like it was probably overheating since it's almost at 60C at 45min or so....

[MUff1N]

Those are around the temps I get and my card's very stable and cool at 80% fan speed.
20% is crazy! There's no way it's going to stay cool enough. If it was at 20% when it was crashing then there's your reason.

With my eVGA 8800GTS Overclocked to these specs & the fan set to 80% (still quiet) it only gets up to 148F/64c.

If you want to see what the temps are doing over a period of time, you should use Fanspeed and click Charts, then Core (GPU temps) and it will show you a graph chart.

[Shemo]

Yeah..I just think it's overheating...might take it back to work and get an 8800 GT. =)))))

[MUff1N]

From what I've read about the 8800GT, it has heat issues that are worse then the 8800GTS which I haven't seen any heat issues with.
I play for hours on end with my 8800GTS OC to 648/1505/1026 with no problems at all & it only gets up to 142-148F playing Crysis like this with my case Closed up...
But this is of course with the extra 80mm fan I added that's pulling the heat directly away and out of the case from the back of the card's heatsink.

BUT, if you get the "new" eVGA 8800GT Cooler design (AKIMBO), then it should be good to go! This new card performs very will on 3DMark06. 13,500 (Stock)!
EVGA | Products
EVGA | EVGA 8800GT AKIMBO
This card also has clock improvements over other 8800GT models too!
Read... e-GeForce 8800GT AKIMBO SC 512MB EVGA | Products
Performance
NVIDIA GeForce 8800GT
720 MHz GPU
112 Stream Processors
400 MHz RAMDAC

Memory
512 MB, 256 bit DDR3
2000 MHz (effective)
64.0 GB/s Memory Bandwidth

[Shemo]

I didn't see it get over 63C last night while I was in game for roughly an hour or so......still seems kinda hot, ey?

[MUff1N]

Originally Posted by Shemo

I didn't see it get over 63C last night while I was in game for roughly an hour or so......still seems kinda hot, ey?

Nah...that's not hot at all for this card. 63c = 145F.
BUT considering you're not Overclocking it like I am then that is a bit hotter than it should be. At Stock speeds mine only gets to around 120F.
But then again my Fan Mod to the back of the card really cooled it down alot! By 40F!!! That's a big diff in cooling...

Graphics card fanmod cooling solution by MUff1N!
Btw, that's blowing OUT not IN...Pulling the heat away from the card.

[Shemo]

Muffin....how did you mod the back of your case to put that fan on there? I've got about 8 120MM fans laying around I could use...take SS of how you router the power cables too! I might have my Stepdad help me mod my case while I'm recovering from hand surgery.

What do you guys suggest? Call EVGA and see what to do about the temps?

[dsio]

Just for comparison, under load the standard temp for my 6800GT GPU is 93-95C at the moment, and its 100% stable.

They do run really hot, so don't be bothered by 63C, I'd kill for those temps lol.

One thing I'd look at is power. Is your PSU a high quality unit, or just a cheapie, or one that came with the case? Also what card is it?

[Redroar]

The 7xxx series are more sensitive than the 6xxx series. I could get my 6600GT up to 90C no problem, but as soon as I hit 75C on my 7900GT, it starts to artifact, and eventually crashes. I haven't used any 8xxx cards yet, though, so I don't know about any of them.

[Shemo]

PSU-Corsair HX620W
Video card-EVGA 8800 GTS, same card Muffin has.

[Shemo]

Ok, I've tried running a 3dmark test to get new results with my e8400 and I guess the video card just can't handle it....in the middle of the test, after the 2nd game plays it just goes to a black screen an doesn't come out of it...gonna try to contact EVGA tomorrow to see what they say.

[MUff1N]

Hmm...This is just a hunch, but I think your Graphics card is being under powered. This is the reason I went with a 750w PS instead of the 650w they were going to put in my system originally. This way I don't worry about anything being undervolted or underpowered & have plenty of headroom.
But looking at your PS specs it does have the needed amperage for the 8800GTS card...hmmm

My Fan mod...hehe. This is so simple it's just stupid & works alot better than using a Slot Fan because it's pulling out the hot air directly coming out the back of the card's heatsink & pulling cool air to the card's intake fan. This also helps keep everything in the case much cooler too, like the CPU thats directly above it.
Before I did this the cards temps idled at 64c & got up to 83c (or more) while gaming. This also cause my CPU temps to go up as well from the heat coming off the card & rising up in the case but not anymore!

All I did was take out the slot Covers for other addon cards on the back of the case below my graphics card (now the air can flow out that way) then used a Superlock™ Strip (Like Velcro but better) to attach the fan to the side of the case (no screws or glue needed) and routed the fan's plugin through the top slot off to the side around my rear exhaust fans & into the empty rear fan header on the mobo. The other 2 rear exhaust fans are at 100% and plugged directly into the powersupply. Then I use Fanspeed to control the speed of the fan. So when I'm not gaming it's at 43% (around 1200rpm and silent) and when the CPU hits 105F it goes up to full speed @ 2300rpm.
I got the Superlock™ Strips at Radioshack. They hold REALLY STRONG & the fan never moves.
RadioShack.com - Cables, Parts & Connectors: Chemicals, tape & adhesives: Adhesives & fasteners: Superlock™ Strips (2-Pack)

This way I can put everything back the way it was very easily if I want to take that fan out because nothing was drilled or glued at all.

Btw, I did post this mod in this forum last year after I first joined in on the fun here and I still think you guys are funny!!!
Getting rid of the Graphics Card HEAT!

[Shemo]

Guys from jonnyguru forums had me give them my pc specs...told me the hx620 from corsair will be plenty and then some...this has just recently started happening...after my mobo/cpu swap...I'll look on asus's forums for any known issues with the p5kc mobo

[noob]

Can you give full system specs - including monitor
Are you using any DVI -> ? converter for it?
Also, if you have another monitor, try using that instead, if you have a monitor that the cable can be completly changed (eg LCD), try a different cable - changing from DVI to VGA is fine.

Make sure the cable is connected squarely, and the connectors are 'tight' - which means seated securely with no play in the connector, don't overtighten past there. Both Card, and monitor side if it connects both ends.

If possible can you post decent close pics of the connectors between monitor cable and vid card, and monitor and cable if applicable.

A bent / corroded pin or dodgy cable/connection can cause these problems. The exhaust heat could be just enough to break the connection - meaning the time to reboot is enough to cool it down.

Check your case for any dust, and make sure you clean it out. If you can, get something to monitor the fan speed on your card, and audibly beep if it stops - being if it's what is shutting down, you wont see a warning