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1st Time OC'ing: 7800GS

post #1 of 8
Thread Starter 
Hi everybody!

I'm CHill and am new to the forums, as well as to Overclocking.
It's my first time I will be Overclocking hardware and have some questions
I know that there are already some topics about the 7800GS, but some things are still unclear and not explained very well

Specs:

Intel Pentium 4 @2.66 Ghz, not OC'ed (of course, 'cause I haven't done it before )
7800GS 256Mb AGP, I'm not sure 4x or 8x, since it isn't my computer that i will be overclocking, and i don't know the Manufacterer (eg EVGA, Gainward, ...)
1Gig of RAM

In about a week, I'm going to try to overclock a 7800, few questions though:

1. What program should I use, I've read about ATItool, will it do the job for a newb?

2. For the 7800GS, am I going to need a specific version of the card, or will any version do the trick? It seems that they've released a Superclock, and I'm pretty sure I don't have one of those, but besides that, anything else that I should take in to account concerning the version of the AGP card?

3.There was also some commotion about a guy having his CPU OC'ed and therefore not being able to get his Graphx Card oc'ed well, or something in that line, I can't remember it that well, anyway here's the link. (I'm sorry for linking to another forum, but you guys should be glad i joined this forum, and not the other )
Will problems with the CPU occur? Or won't there be any problems?

4. Are there easy alternatives for cooling a videocard?

5. If not, then we'll just focus to the stock cooling

Thanks in advance!

I hope you guys can see that I already did some research and I'm not just letting you guys do all the work, 'cause that's not what i want

I hope i get some answers though

Greetings

CHill
post #2 of 8
Welcome to OCN Chill.

1) I would try MSI Afterburner. Works with any nV-based card afaik.
2) Not a problem, all 7800GS models are inherently the same card, the difference w/the OC'd models is just a different clock set in the bios.
3) Since the CPU is not OC'd, why does it matter? Actually they're two totally separate things, not related to each other.
4) I dunno about on the 7800GS ... might be hard to find a suitable aftermarker cooler for that card. It's quite old, and wasn't that popular to begin w/cause almost everyone who bought 7x00-series cards were moving to PCI-Ex. It's generally not that hard to swap a cooler for those cards though if you can find one.
    
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by brettjv View Post
Welcome to OCN Chill.

1) I would try MSI Afterburner. Works with any nV-based card afaik.

Okay, I'll see how it turns out for me

2) Not a problem, all 7800GS models are inherently the same card, the difference w/the OC'd models is just a different clock set in the bios.

Okay, no worries there either

3) Since the CPU is not OC'd, why does it matter? Actually they're two totally separate things, not related to each other.

Yeah, but that was what they mentioned in that specific topic, so I was a little bit confused, but it's not something to worry about?

4) I dunno about on the 7800GS ... might be hard to find a suitable aftermarker cooler for that card. It's quite old, and wasn't that popular to begin w/cause almost everyone who bought 7x00-series cards were moving to PCI-Ex. It's generally not that hard to swap a cooler for those cards though if you can find one.

I''l give it a try, if I find a cheap one
Also mentioned in some other topics, I'm a bit confused here:

Someone said it's important that you have the G70 chipset and not the G71 chipset (or was it no G70 but a G71)

Should I take this into account?

Thanks for all the help dude, I hope I'll succeed doing this job
post #4 of 8
Quote:
Originally Posted by 'CHill View Post
Also mentioned in some other topics, I'm a bit confused here:

Someone said it's important that you have the G70 chipset and not the G71 chipset (or was it no G70 but a G71)

Should I take this into account?

Thanks for all the help dude, I hope I'll succeed doing this job
That wouldn't really matter if you are just trying to improve the performance of that card.

Furmark is a good program to use for stress testing new overclocks. ATI tool is useful too, but Furmark will fill in the gaps for stability.

http://www.geeks3d.com/20110224/furm...ngl-benchmark/

Use Afterburner and find a a good clock speed you want to test, then pop on Furmark stress test. Just watch the temperatures. I would say keep them below 80c. Rule of thumb with most overclocks is the cooler the item is, the better it overclocks, just don't put ice on it

If you want to more, just ask.

Oh ya fill out your System Information by clicking on the User CP link and then looking for Add System on the left side panel. Try to fill it out as best you can.
Edited by Ktulu - 2/27/11 at 2:33am
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post #5 of 8
Thread Starter 
So first overclock it with the software from post 2? Or use your tools?

And, if I don't go past the 75C, will it trash something else (eg PCI cards on my motherboard) because of the heat?

I decided to just go with the stock, no cooling at all, see how it turns out

If it doesn't matter (the chipset thingy) then I'll be just fine I guess

Thanks guys, really quick replies, damn epic forum
post #6 of 8
Quote:
Originally Posted by 'CHill View Post
So first overclock it with the software from post 2? Or use your tools?

And, if I don't go past the 75C, will it trash something else (eg PCI cards on my motherboard) because of the heat?

I decided to just go with the stock, no cooling at all, see how it turns out

If it doesn't matter (the chipset thingy) then I'll be just fine I guess

Thanks guys, really quick replies, damn epic forum
Well -Every chip (CPU and GPU ect, ect) has a "safe limit." So my CPU's safe limit is 65c. If the chip is getting 65c on a regular basis, I would back off the overclock, or get better cooling. So your chip's "safe limit" is 75c. It's ok if it gets that hot, but you don't want it to get that hot every time you turn around.

Get Afterburner, it is a program that lets you change the clock speeds of Graphics cards. That program is the program which overclocks. Install it.

But you can't just overclock something to a bizzillion megaherts without testing it. You could clock you card to 1200 mhz core (not really) but unless you tested the card, or as we say "benchmarked" or "stress tested" the card. You would not know if 1200mhz core was ok (it is not ok.) So you have to find a "stock" clock then go up about 5% from there and check with another program like Furmark. Then if everything ok, go up a little more, then a little more. It is a slow process to do it right.

Some people just test the graphics cards with games they play, but if you are about to save all the babes in Duke Nukem and your card blue screens because you didn't test it with Furmark you have a problem.

So there are 3 types of clues that your overclock is unstable.

The least sever clue is artifacting. When you use Furmark and little tiny white and black boxes appear on the screen those are called artifacts. Artifiacting can occur at anytime you are playing a game if you have a bad overclock. Some people can live with a little, I like to have none because you never when things might freeze or restart.

When the screen "hangs" or jumps that is a more sever clue that you have a bad over clock.

When the computer shuts down or blue screens that is the most sever. IF those things happen just back down on your overclock.

Here is a hint, most overclocks on air cooling won't go past more than 15% of the cards original speed. You can't double a graphics card clock speed with overclocking. You can increase speed by about 10%-15%

Hope this helps. I am heading to bed, but if you need help in the morning I'll drop you a line.
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post #7 of 8
Thread Starter 
Okay thanks, but how do I know what my safe limit is?
Some guys take it up to 100C...

But for my card, 45-50C idle is good, right? And then after few hours of gaming my safe limit, is that a good measure? Or should I stay far beneath my safe limit?

And what about the PCI hardware, will the Graphx Card harm them?
post #8 of 8
Quote:
Originally Posted by 'CHill View Post
Okay thanks, but how do I know what my safe limit is?
Some guys take it up to 100C...

But for my card, 45-50C idle is good, right? And then after few hours of gaming my safe limit, is that a good measure? Or should I stay far beneath my safe limit?

And what about the PCI hardware, will the Graphx Card harm them?
Your safe limit is 75c. The safe limit for your 7800GS is 75c.

Google can probably answer most of your questions. That is how I found what the safe limit of your card was.

First Google @ google.com your question
Example: 7800 GS Safe Temperature

Then Google on OCN
Example: 7800 GS Safe Temperature

There are guides to overclocking that will be helpful to you. Google to find these.

Fill out your system Information: User CP > Add System
Edited by Ktulu - 2/27/11 at 12:25pm
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