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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1372

post #13711 of 38701
Quote:
Originally Posted by dookiebot View Post

I think your memory settings is too high.
On average with good cooling the core can hit 1020 on stock voltage.
Back your memory down a little bit and see what happens.
Technically I am having you work backwards.
I am not an expert in OCing but this was how I found my limit
1. Have memory back to stock settings.
2. Start with core at 960MHz
3. Run tests (Unreal Heaven 20 minutes and 3DMark11)
4. Bump up 20Mhz and repeat step 3 until a crash.
5. Back the core 10MHz from the crash setting and repeat step 3. If no crash then stress test your settings for 30minutes-hour.
6. Now increase your memory settings by 50MHz and repeat step 3 until a crash. Then take the memory settings down 10MHz and repeat until stable then stress test.
Quote:
Originally Posted by chizzms View Post

will do this.. but first things first..
1. what are the risks?
2. in #2 you said core, is it the GPU clock?
3. at #6 memory setting is the memory clock?
4. tests in #3 are the same test for #5?


I saw this review from overclockers stating the max setting for OC.. can jump into this setting?
http://www.overclockersclub.com/reviews/xfx_sapphire_hd7950_3gb/6.htm
    
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post #13712 of 38701
Quote:
Originally Posted by chizzms View Post

will do this.. but first things first..
1. what are the risks?
2. in #2 you said core, is it the GPU clock?
3. at #6 memory setting is the memory clock?
4. tests in #3 are the same test for #5?

Quote:
Originally Posted by dookiebot View Post

I think your memory settings is too high.
On average with good cooling the core can hit 1020 on stock voltage.
Back your memory down a little bit and see what happens.
Technically I am having you work backwards.
I am not an expert in OCing but this was how I found my limit
1. Have memory back to stock settings.
2. Start with core at 960MHz
3. Run tests (Unreal Heaven 20 minutes and 3DMark11)
4. Bump up 20Mhz and repeat step 3 until a crash.
5. Back the core 10MHz from the crash setting and repeat step 3. If no crash then stress test your settings for 30minutes-hour.
6. Now increase your memory settings by 50MHz and repeat step 3 until a crash. Then take the memory settings down 10MHz and repeat until stable then stress test.

Quote:
Originally Posted by Daffie82 View Post

Dude, before you go crazy and OC the **** out of your card at least read up some more.
It sounds to me you are able to detroy your card any minute, go offline and never return...
Just take it easy, read here on these forum about general OC of GPU, this way you will know alot more what you are doing.

hahaha.. actually you are right, i'm in the midst of studying, reading and consulting.. and you are right also that i almost destroyed by gpu by setting it to 1600 using trixx.. good thing it went back to normal after 2 crashes.. im more careful now biggrin.gif
    
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post #13713 of 38701
Quote:
Originally Posted by chizzms View Post

hahaha.. actually you are right, i'm in the midst of studying, reading and consulting.. and you are right also that i almost destroyed by gpu by setting it to 1600 using trixx.. good thing it went back to normal after 2 crashes.. im more careful now biggrin.gif

It won't get destroyed, it's just running at an unstable clock. You can only "destroy" your parts if you put too much voltage through them or physically break them, but seeing as you are not touching voltage, you are free to see the limits of how far you can go. thumb.gif
    
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post #13714 of 38701
Quote:
Originally Posted by Statius View Post

Question: What proportionaly overclocks higher, the 7959 or 7970?
I'm sitting here with my 7950 @ 1150mhz core and 1550mhz memory with 1218mv core+ 1625mv memory
Am I the only one here shattering the ghz barrier lol?
All I'm seeing is 1000-1050 mhz clocks.

Most of us are staying in stock voltage so it can run cool. I will be putting a EK waterblock on mine later tonight as I'll be getting my CPU block today and I'll finally be able to test my loop out. I'll report what I can do with stock voltage and overclocked.
Quote:
Originally Posted by BlackWS6 View Post

VRM Temps are very reasonable for some reason on this Sapphire Dual X OC Edition 70. I have the profile set to run the fans at 100% at 60ºC since they aren't that loud @ 100% anyways. I'll do more checking with HWINFO on VRM's but the last time I ran them and the core was in the low 70ºC range the VRM's were in the 80's.

With those temps, it should be good then. VRMs usually tend to run about 10C higher than the core, it's only less with active cooling or watercooling.
    
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post #13715 of 38701
Quote:
Originally Posted by AllGamer View Post

I found a deal for MSI lightning 1070 going for $500
so, i'm pondering if i should bother picking up 2 of them, or if i should just stick with my current ASUS 7970 DC2U 1000
the ASUS ones have been giving me nothing but problem since day 1
i just opened a RMA ticket for the one that is the most defective
the other one is okay, but every now and then it does still over heat quite quickly and crashes with the VRAM lines on the screen

oh well i gave in

just placed an order for a couple of MSI Radeon HD 7970 Lightning 1070MHZ 3GB 5.6GHZ GDDR5 thumb.gif

can't stand the ASUS HD7970-DC2T-3GD5 1000 Mhz not working as advertised

I'll just off load those ASUS to some other that only needs a single video card, and no plans to do CF
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post #13716 of 38701
Quote:
Originally Posted by AllGamer View Post

oh well i gave in
just placed an order for a couple of MSI Radeon HD 7970 Lightning 1070MHZ 3GB 5.6GHZ GDDR5 thumb.gif
can't stand the ASUS HD7970-DC2T-3GD5 1000 Mhz not working as advertised
I'll just off load those ASUS to some other that only needs a single video card, and no plans to do CF

I just had to RMA my Asus DC2T because of artifacting even at idle and BSODs, and I called them over a MONTH later, and they said they couldn't find a replacement for the card so they would call me soon with an alternate replacement, which is BS, because the TOP is the best 7970 they sell... sucks to be honest. I don't believe they don't have another TOP laying around somewhere. Especially in California where it's at now. Their RMA process is slow and absolutely horrible.

This is why I've ordered 3 lightning 7970s and a Sapphire DualX OC. The 4th lightning will be here soon.
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post #13717 of 38701
Quote:
Originally Posted by chizzms View Post

I saw this review from overclockers stating the max setting for OC.. can jump into this setting?
http://www.overclockersclub.com/reviews/xfx_sapphire_hd7950_3gb/6.htm

Whoa hold up on that. Even the catalyst will allow you to set the gpu clock to 1100 but don't even bother because you won't be stable without also increasing voltage. And don't even try increasing the voltage on your card until you know exactly what you are doing and are willing to spend the time required to vet your OC. Otherwise you will be having a funeral for your days old card.

If you want to jump into settings on stock voltage and you have good airflow in your case... If it is a non-reference cooler like the MSI Twin Frozr I would say you should be able to hit 1000 GPU and 1400 memory easily. But make sure you have GPUz installed to watch your temps as your run tests on it. But I strongly advise you do it right starting at your default clock speeds and OC in small increments and test each one.
Edited by dookiebot - 7/24/12 at 3:07pm
post #13718 of 38701
i could fit 3 MSI lightning on my ASUS RAMPAGE IV Formula, but i don't see myself needing the extra power, as long as i can turn everything to MAX quality and run over 30 fps in 5760x2160 then i'm happy

most of the games i play don't require that much power except BF3, which i seldomly play

i'm thinking i might just thrown in an old nVidia GTX 285 there to do the PhysicX hybrid thingy not sure if it'll work with the 2 lightning and Eyefinity 6 setup
Quote:
Originally Posted by m3t4lh34d View Post

I just had to RMA my Asus DC2T because of artifacting even at idle and BSODs, and I called them over a MONTH later, and they said they couldn't find a replacement for the card so they would call me soon with an alternate replacement, which is BS, because the TOP is the best 7970 they sell... sucks to be honest. I don't believe they don't have another TOP laying around somewhere. Especially in California where it's at now. Their RMA process is slow and absolutely horrible.
This is why I've ordered 3 lightning 7970s and a Sapphire DualX OC. The 4th lightning will be here soon.
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post #13719 of 38701
Quote:
Originally Posted by Kokin View Post

Most of us are staying in stock voltage so it can run cool. I will be putting a EK waterblock on mine later tonight as I'll be getting my CPU block today and I'll finally be able to test my loop out. I'll report what I can do with stock voltage and overclocked.
With those temps, it should be good then. VRMs usually tend to run about 10C higher than the core, it's only less with active cooling or watercooling.

Thanks for the response man, I appreciate it. I'll do some tests tonight and see what I come up with as far as VRM temps. (Keep in mind, I'm only testing with BF3 and Heaven loops).
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post #13720 of 38701
Quote:
Originally Posted by Kokin View Post

Most of us are staying in stock voltage so it can run cool. I will be putting a EK waterblock on mine later tonight as I'll be getting my CPU block today and I'll finally be able to test my loop out. I'll report what I can do with stock voltage and overclocked.
With those temps, it should be good then. VRMs usually tend to run about 10C higher than the core, it's only less with active cooling or watercooling.


I have had my 7950 for a week OCed on air(stock voltage) only and am quite pleased with it. Waterblocks sound interesting but the price makes me wonder what value it provides over stepping up to the next tier card. They seem to cost about $100 which is about the same as the next tier card, right? I hope that doesn't read like a setup/troll question I genuinely am interested in the returns on investment.
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