Overclocking HIS Radeon HD 4850 1GB

The__Malteser · 12 Jun 2011 at 22:35

Hi all,

Recently, as some of you may have seen, I overclocked my CPU with your help. I knew nothing before that on overlcoking, and on a scale of 1-10, I know know maybe 2

Well, I now want to OC my GPU. As I said in the title I have an HIS Radeon HD 4850 1GB. The rest of the system is 'meh'. I have an Asus P5-KLP AM mobo (poor for overclocking I KNOW

), stock cooling (not ideal for OCing, I KNOW

) and a stock 500W PSU, which I don't know the make of (once again.......I know ), 4GB RAM, a E5200 CPU (OC'ed to 2.9GHz) and a 500GB WD HDD.

Idle temps is around 45, on stress, I'm not sure, but around 60 (Playing BF:BC2 MAX graphics).

I don't know where to start off, so guide me through it please

P.S. Yes, I already did this thread in the OCing section, but no mod moved it

The__Malteser · 26 Jun 2011 at 11:56

Old old thread, but I recently used CCC and I came across this.

Does it have anything to do or no

CyberCrow · 26 Jun 2011 at 12:25

just a quick question if i may

but what are the advantages of Oc gpu?
Ive had various cpu Oc'd but never bothered with Oc me cards :s is there also a big improvement.

Moothead2 · 26 Jun 2011 at 12:28

IT'S UNCLE BOB said:
just a quick question if i may but what are the advantages of Oc gpu?
Ive had various cpu Oc'd but never bothered with Oc me cards :s is there also a big improvement.

You can get a few FPS here and there by OCing your GPU, whether it's worth the hassle (Testing for stability), the extra heat and the risk of limiting the lifespan of your GPU is up to you :0.

OP, you can use that just click the big key at the top and move the first two sliders over a little bit and test for stability in FurMark.

The__Malteser · 26 Jun 2011 at 12:48

IT'S UNCLE BOB said:
just a quick question if i may but what are the advantages of Oc gpu?
Ive had various cpu Oc'd but never bothered with Oc me cards :s is there also a big improvement.

Pretty much what the other one said, a few FPS here and there

Does increase temperature though.

Moothead2 said:
You can get a few FPS here and there by OCing your GPU, whether it's worth the hassle (Testing for stability), the extra heat and the risk of limiting the lifespan of your GPU is up to you :0.

OP, you can use that just click the big key at the top and move the first two sliders over a little bit and test for stability in FurMark.

I found this tutorial, is it good?
http://www.ehow.com/how_8430628_overclock-radeon-hd-4850.html

The__Malteser · 26 Jun 2011 at 13:03

I pushed the bars to the max. Clicked 'Test Custom Clocks' and my screen went all black, and came for around 2 seconds, but all was jammed, and a few pixels weren't in place.

Forced shutdown, booted again, and went in CCC. Bars are pushed to the max and PC is working well :S (but at Current Values it says GPU Clock: 500MHz and Memory Clock : 993 MHz)

Probs will go black when I play a game though.

Any ideas?

EDIT: Happened again. I went to open a prog as admin, and the screen went black. Pixels out of order and I got a BSOD. Didn't touch CCC though.

CyberCrow · 26 Jun 2011 at 13:36

Cheers for the reply's guys, i think il leave mine how they are lol

The__Malteser · 26 Jun 2011 at 14:48

As soon as I switch off PC, and the blue 'Shut Down' screen comes, the pixel things come again :S

Hope I haven't permanently destroyed my GPU

The__Malteser · 26 Jun 2011 at 15:17

I know I've been bumping this thread a tad too much, but I have a kind of big problem.

So, I needed to open a program in admin mode, and when the admin mode screen came out, I got a BSOD again.

I thought that I would remove graphics card and just use the onboard card until I find a fix, so I can AT LEAST shut down correctly and stuff.

I remove the card and put on PC. My PC beeps for 3/4 times, then it keeps going for 5 seconds, then it beeps again and turns off.

Don't want to put in graphics card as I said I might just wait for some1 to help me

Am using a laptop now as my PC is still 'broken' (graphics card out of place etc.)

Any one, HELP ME PLEASE.

bridder · 26 Jun 2011 at 16:01

You would need to go into your bios pre removing the dedicated graphics card and switch from using that to onboard, have/did you do that before removing the dedicated 4850?

Also I don't think that you would have broken your GPU by overclocking it a bit too much, again I don't know if you have done this but have you reverted back to Defaults? There is a button for this at the bottom of the AMD Overdrive tab in the CCC, as in the image above. Do you still get bsods etc even at default settings?

regards,
J.

EDIT: Also just wanted to add that you should not overclock in the manner that you have, from what you have said you have done you have just wacked the sliders to max! You could have tried being a little more incremental in your testing, maybe 10mhz a time on the GPU clock and 20mhz a time on the MEM clock, after each change try "Test Custom Clocks..." or go out and play in your favourite game for an hour or so, when you get a failure back up from your last change and you will probably have a reasonably stable overclock, just a tip if you did indeed slam them up to max...

The__Malteser · 26 Jun 2011 at 18:45

bridder said:
You would need to go into your bios pre removing the dedicated graphics card and switch from using that to onboard, have/did you do that before removing the dedicated 4850?

Also I don't think that you would have broken your GPU by overclocking it a bit too much, again I don't know if you have done this but have you reverted back to Defaults? There is a button for this at the bottom of the AMD Overdrive tab in the CCC, as in the image above. Do you still get bsods etc even at default settings?

regards,
J.

EDIT: Also just wanted to add that you should not overclock in the manner that you have, from what you have said you have done you have just wacked the sliders to max! You could have tried being a little more incremental in your testing, maybe 10mhz a time on the GPU clock and 20mhz a time on the MEM clock, after each change try "Test Custom Clocks..." or go out and play in your favourite game for an hour or so, when you get a failure back up from your last change and you will probably have a reasonably stable overclock, just a tip if you did indeed slam them up to max...

Nope. I'll be doing it soon enough

It just when black as soon as i pressed 'test custom settings'. I know a box poped up but I couldn't read it, it blacked too fast. Whenever I go on CCC now, the Currant Values of GPU and Memory clock are as default, because I pressed 'defaults' button. (meaning 550 and 993 respectively). I didn't press 'test custom settings' at that amount though yet, so probs thats the next thing I'll try.

To the edit: I know

I normally do this stuff calmly and cautiosly but I don't know what got to me. Probs was a tad tired. In fact, seeing as I just have a ****ty slow laptop, I went to sleep

What I'm gonna do is put the GPU back in, load up CCC, pres defauts and pres 'Test Custom Settings'. HOPEFULLY all will work fine even when shutting down/running as admin.

Is this the best thing to do?

Will ask confirmation for EVERYTHING now as I don't want to muck up again.

The__Malteser · 26 Jun 2011 at 20:29

The graphics section is kind of slow in comparison to the CPU section

Am determined to test out what I said last myself because it can't get much worse than it is tbf

bridder · 26 Jun 2011 at 20:31

The__Malteser said:
What I'm gonna do is put the GPU back in, load up CCC, pres defauts and pres 'Test Custom Settings'. HOPEFULLY all will work fine even when shutting down/running as admin.

Is this the best thing to do? Will ask confirmation for EVERYTHING now as I don't want to muck up again.

I honestly couldn't say, I'm surprised that a short burst with almost immediate crash has caused damage to anything, pumping up the voltage yes but not clocks and the CCC clocks are generally conservative...

You could give it a go because if it is damaged I cannot see it doing anymore harm, just crashing again. I'm almost certain that 700Mhz through the GPU would not have caused damage but maybe 1200Mhz through the Mem has done something, I aren't sure what the chips are rated at.....

Good luck anyway and let us know how you go on,

regards,
J.

The__Malteser · 26 Jun 2011 at 20:54

If its damaged, I'm going to be seriously annoyed. Only got it round Jan, MAYBE October latest, MAYBE. Will try to restore to default settings.

Hope it works out fine.

The__Malteser · 26 Jun 2011 at 21:08

Well, I passed the test and tried to open a prog as admin.

All working fine

NOW I ask you fellow OcUKers, how can I get round to OCing, if its actually worth it, as what happened frightened me quite a bit

Orcvader · 26 Jun 2011 at 23:45

Overclock it by 10mhz, run Furmark for 15 mins. If it's stable then overclock further by another 10mhz. If not then go back 5mhz and run Furmark again. Did this for my 4870 few years back but can't remember what clocks I got

. Don't really overclock the GPU anymore nowadays.

You can try using MSI AfterBurner to overclock, I prefer that over CCC as it gives a lot more infomation on the GPU.

synixx · 27 Jun 2011 at 00:59

The__Malteser said:
Well, I passed the test and tried to open a prog as admin.

All working fine

NOW I ask you fellow OcUKers, how can I get round to OCing, if its actually worth it, as what happened frightened me quite a bit

I was going to say that AMD overdrive saves the clock you set it at unless you change it so the constant rebooting could have been because it was stuck at an unstable clock. If you put the slider to max it is pretty much guaranteed to crash lol. I keep on trying to tell my friend that when he complains his pc has crashed with his 8800gt at 800mhz (stock 600).

The__Malteser · 27 Jun 2011 at 01:26

Downloading Furmark.

Should I put both sliders up by 10MHz each?
Also, if its a fail, will it not just crash as happened before?
As soon as I press the button to use that settings, it takes me to a green/orange screen, and tells me if it passes the test or no. I still need to run Furmark over and above that result yes?

Orcvader · 27 Jun 2011 at 01:36

Do it one slider at a time, core first, so you can find the core limit. Then do the memory after, to find the memory limit.

It won't crash like before as you ramped it up to the max, placing incredible stress to the card, possibly casuing damage to it. This will be easier on the card and will allow you to find a more stable overclock.

Furmark is a much better stability test as it fully stresses out the card, but it can be very stressful hence why I suggest a max of 15 mins as the GPU temps can get pretty high. In real world situations such as gaming nothing will stress the card as hard as Furmark, hence why I prefer using it as a stablity check.

The__Malteser · 27 Jun 2011 at 09:48

Orcvader said:
Do it one slider at a time, core first, so you can find the core limit. Then do the memory after, to find the memory limit.

It won't crash like before as you ramped it up to the max, placing incredible stress to the card, possibly casuing damage to it. This will be easier on the card and will allow you to find a more stable overclock.

Furmark is a much better stability test as it fully stresses out the card, but it can be very stressful hence why I suggest a max of 15 mins as the GPU temps can get pretty high. In real world situations such as gaming nothing will stress the card as hard as Furmark, hence why I prefer using it as a stablity check.

Intelligent

I'll be trying tomorrow, as I don't have much time now and will go out later.