-
Competitor rules
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
SAPPHIRE HD 7950 3GB OC GDDR5
- Thread starter nuzik
- Start date
Soldato
- Joined
- 21 Sep 2009
- Posts
- 5,267
- Location
- London
1050/1200mhz should be possible without a voltage bump.
That's weird. As you know It should be around 800 stock. My Sapphire goes to 1150/1400 btw
The clock was 800 they are the other numbers
The clock should be 900mhz that's what their website says
The reason your freezing is because your voltage is too low you need to first of all use your bios switch to the 2nd bios on your card there will be a little switch on the side see if this changes the clocks if so wahoooo your now running 900/1250!!
Lets go faster!
So first of all you want to see how high you can get on stock volts firstly start with ocing your core clock first going up in increments of 25mhz (going by what most people get on 7950's go to 950 and go up from there) if it crashes or artifices back down the clocks a little when your finished with the core start on the memory (if u want some people don't like to I the memory as thu feel u don't really get much gain) and do the same again when you have reached your best memory oc try them both together if it crashes back down a little and try again.
Keep your eyes on temps of the core and vrm's anything below 75c is acceptable to me u can go higher and be safe.(I believe max temps for core is around 90-100c and vrm's are around 120c but your really don't wanna be going this high espically if overvolting)
It's the same process with volts max volts is 1.3v and you really dont want to be using that 24/7 personally I only overvolt the core I don't touch memory voltage.
I use msi afterburner for doing my ocing and I use the on screen display for core temps and fan speeds and to check its using the correct clocks I use gpuz to check vrm temps and to check the other previously mentioned values but u can use trixx or ccc.
I use the free heaven benchmark to do some stress testing using the settings in the heaven benchmark thread in here and then I just game to test for stability.
I personally have a gigabyte 7950 windforce 3 on stock volts it runs 1000 core 1450 memory and with volts it runs 1150 core and 1450 memory @1.225volts on the core and never goes above 65c.
I could put my memory up further around 1550 on stock volts but I feel no need to.
My card came with the same voltage as yours stock I believe also
Sorry if I have missed some bits but I'm on my phone at work! Hope this helps.
Lets go faster!
So first of all you want to see how high you can get on stock volts firstly start with ocing your core clock first going up in increments of 25mhz (going by what most people get on 7950's go to 950 and go up from there) if it crashes or artifices back down the clocks a little when your finished with the core start on the memory (if u want some people don't like to I the memory as thu feel u don't really get much gain) and do the same again when you have reached your best memory oc try them both together if it crashes back down a little and try again.
Keep your eyes on temps of the core and vrm's anything below 75c is acceptable to me u can go higher and be safe.(I believe max temps for core is around 90-100c and vrm's are around 120c but your really don't wanna be going this high espically if overvolting)
It's the same process with volts max volts is 1.3v and you really dont want to be using that 24/7 personally I only overvolt the core I don't touch memory voltage.
I use msi afterburner for doing my ocing and I use the on screen display for core temps and fan speeds and to check its using the correct clocks I use gpuz to check vrm temps and to check the other previously mentioned values but u can use trixx or ccc.
I use the free heaven benchmark to do some stress testing using the settings in the heaven benchmark thread in here and then I just game to test for stability.
I personally have a gigabyte 7950 windforce 3 on stock volts it runs 1000 core 1450 memory and with volts it runs 1150 core and 1450 memory @1.225volts on the core and never goes above 65c.
I could put my memory up further around 1550 on stock volts but I feel no need to.
My card came with the same voltage as yours stock I believe also
Sorry if I have missed some bits but I'm on my phone at work! Hope this helps.
Soldato
- Joined
- 22 Jul 2012
- Posts
- 16,160
- Location
- London
Are you doing any kind of voltage adjustment, or are you just whacking the clocks up at stock volts?
Try this: http://forums.anandtech.com/archive/index.php/t-2263110.html
Edit: LOL, tree'd again! Nice one Chris
Try this: http://forums.anandtech.com/archive/index.php/t-2263110.html
Edit: LOL, tree'd again! Nice one Chris
Are you doing any kind of voltage adjustment, or are you just whacking the clocks up at stock volts?
Try this: http://forums.anandtech.com/archive/index.php/t-2263110.html
Edit: LOL, tree'd again! Nice one Chris
Hehehehe
feel like I stole your thunder a little! Hahaha Makes a change for me not to be the one beaten to it!
Soldato
- Joined
- 22 Jul 2012
- Posts
- 16,160
- Location
- London
Good advice is good advice mate. Get in there!
Last edited:
Yeah you can put that to plus 20% will help with power draw.
How is your ocing going?
Also you may find that afterburner won't let you go above 1100 on the core and restrict memory of aswell to solve this right click on the afterburner link choose properties and then the path file at the end put /xcl i believe u have to leave a space between the xcl and the end of the original line click apply come out then click on the link it should then tell u the clocks limits have been extended go back in to properties and remove the /xcl click apply and restart comp and voila your clock limits will be increased
How is your ocing going?
Also you may find that afterburner won't let you go above 1100 on the core and restrict memory of aswell to solve this right click on the afterburner link choose properties and then the path file at the end put /xcl i believe u have to leave a space between the xcl and the end of the original line click apply come out then click on the link it should then tell u the clocks limits have been extended go back in to properties and remove the /xcl click apply and restart comp and voila your clock limits will be increased
Last edited:
Yeah I only want a oc on my system I can use daily 24/7 tbh and I flit between using the 1150/1450 @1.225v and the stock volts 1000/1450 clocks these seem to be what most people run anything past 1150 on the core doesn't really seem noticeable in real world gaming from what I read.