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Author Topic: How long does a 280X dual-x oc last running at 81-85 degrees?  (Read 3464 times)
sameev29
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February 08, 2014, 10:37:26 AM
 #1

I have a sapphire 280X dual-x.Its been over a month since I am using it.But now that summer is arriving temperature is starting to rise.

I even lowered the gpu clock and mem-clock.Now at 690khash(down from 725+) I am getting 80 degrees.Summer's heat hasnt fully began yet.Temperature then will be more.

So if I run the card at 82-85 degree celcius how long might it last any idea?
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Wipeout2097
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February 08, 2014, 12:53:26 PM
 #2

Not long. What's the VRM temperature? What's the fan speed?

See "Sensors" on GPu-z

Undervolt and otherwise optimize your videocard. https://bitcointalk.org/index.php?topic=435438.msg4849281#msg4849281



 
 
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February 08, 2014, 03:42:28 PM
 #3

Does it really matter if it's still under warranty?
sameev29
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February 08, 2014, 05:16:52 PM
 #4

Not long. What's the VRM temperature? What's the fan speed?

See "Sensors" on GPu-z

Undervolt and otherwise optimize your videocard. https://bitcointalk.org/index.php?topic=435438.msg4849281#msg4849281



I am getting this on gpu-z:




I am using these settings for cgminer:

"intensity" : "13",
"thread-concurrency" : "8192",
"lookup-gap" : "0",
"worksize" : "256",
"gpu-engine" : "1000",
"gpu-fan" : "0-75",
"gpu-memclock" : "1500",
"gpu-powertune" : "0",
"temp-cutoff" : "83",
"temp-overheat" : "80",
"temp-target" : "70",

"auto-fan" : true,
"auto-gpu" : true,
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "2",
"log" : "5",
"queue" : "4",
"scan-time" : "40",
"temp-hysteresis" : "3",
"no-submit-stale" : true,
crazyates
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February 08, 2014, 07:36:39 PM
 #5

74C is fine. I wouldn't worry until you start hitting >80C.

Also, don't be afraid to bump your fan speed up. Burning out a $5 fan by running it at 100% is a lot cheaper than burning out a $400 GPU by roasting it. Know what I mean?

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MoneyMorpheus
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February 08, 2014, 08:21:04 PM
 #6

Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.


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sameev29
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February 09, 2014, 06:17:29 AM
 #7

74C is fine. I wouldn't worry until you start hitting >80C.

Also, don't be afraid to bump your fan speed up. Burning out a $5 fan by running it at 100% is a lot cheaper than burning out a $400 GPU by roasting it. Know what I mean?

You mean to add extra fan?

Or the cooler of 280-x dual-x is worth $5 only?
sameev29
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February 09, 2014, 06:19:18 AM
 #8

Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.



I didnt change anything of voltage settings.Its at stock.

My fans are at 75% now.You are running at 85,is it safe?

Also I am getting a good usb fan in a few days.
MoneyMorpheus
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February 09, 2014, 06:35:52 AM
 #9

Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.



I didnt change anything of voltage settings.Its at stock.

My fans are at 75% now.You are running at 85,is it safe?

Also I am getting a good usb fan in a few days.


I haven't had a fan fail on me yet, and got 5 dual-x running at that speed for almost two months.

To undervolt download sapphire trixx, tick force constant voltage in the configuration and drop it to 1175. That is a safe voltage and that plus the extra 10% fan will make them run a few C's lower. If you want to undervolt further do it at small steps and test for stability each time.

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sameev29
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February 09, 2014, 07:15:59 AM
 #10

Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.



I didnt change anything of voltage settings.Its at stock.

My fans are at 75% now.You are running at 85,is it safe?

Also I am getting a good usb fan in a few days.


I haven't had a fan fail on me yet, and got 5 dual-x running at that speed for almost two months.

To undervolt download sapphire trixx, tick force constant voltage in the configuration and drop it to 1175. That is a safe voltage and that plus the extra 10% fan will make them run a few C's lower. If you want to undervolt further do it at small steps and test for stability each time.

Thanks for the suggestion  Smiley.But I never did undervolting before.I am kind of scared about this.What if the gpu gets damaged somehow because of voltage unstability.Also our socket output voltage here is 220Volts at 50-60hz.

How about I just increase the fan to 80 and add a good usb fan near the gpu?
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February 09, 2014, 07:29:25 AM
 #11

Well that will help. I have 220 as well here. If you are not going to uv you will need to separate the cards with risers too keep the temps down.

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sameev29
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February 09, 2014, 06:00:24 PM
 #12

Well that will help. I have 220 as well here. If you are not going to uv you will need to separate the cards with risers too keep the temps down.

Of course riser cable must be used,otherwise heat will go enormous.Can I get the temperature like 10 degrees lower using a good usb fan?
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February 09, 2014, 06:42:01 PM
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Well that will help. I have 220 as well here. If you are not going to uv you will need to separate the cards with risers too keep the temps down.

Of course riser cable must be used,otherwise heat will go enormous.Can I get the temperature like 10 degrees lower using a good usb fan?

It depends mainly on how apart are the cards from each other. I placed them 80mm apart because I have several 80mm coolers from old office psu's that malfunctioned over the years. So almost all the air that the gpu cooler absorbs is fresh air from the 80mm coolers. You may get 10 degrees less with a fan, but it all depends on how you place it  Wink

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sameev29
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February 09, 2014, 06:51:18 PM
 #14

Well that will help. I have 220 as well here. If you are not going to uv you will need to separate the cards with risers too keep the temps down.

Of course riser cable must be used,otherwise heat will go enormous.Can I get the temperature like 10 degrees lower using a good usb fan?

It depends mainly on how apart are the cards from each other. I placed them 80mm apart because I have several 80mm coolers from old office psu's that malfunctioned over the years. So almost all the air that the gpu cooler absorbs is fresh air from the 80mm coolers. You may get 10 degrees less with a fan, but it all depends on how you place it  Wink

I might get the usb fan tomorrow.I will let you know what happens.

Hey do you know which cards are best now for mining.As you might have heard that the new Sapphire 280X are have modified vrm and  bios which results in low hash rate.
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February 09, 2014, 07:12:04 PM
 #15

Well I can't say for sure which one is the best, since in my country we have a very limited supply of gpus. I only know from what I read. You may want to look for the sapphire 280x toxic, there was an asus I read good stuff about as well. Beyond that I don't know, you should look for each model you are able to get and read what issues people using that card have.

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sameev29
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February 11, 2014, 06:54:16 AM
 #16

After running for long hours like 10-12 hours the temperatures goes to like 80-81 degrees at 710khash and I think it will be 85 when summer comes fully.I am running the fans at 90 because when gpu gets burned it cant be fixed but if fan gets broken it maybe.If I keep running like this might it last 1 year?

Has anyone here been running this card for several months at these temperatures?Would like to hear their experience.
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February 11, 2014, 09:55:56 AM
 #17

Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.



I didnt change anything of voltage settings.Its at stock.

My fans are at 75% now.You are running at 85,is it safe?

Also I am getting a good usb fan in a few days.


I haven't had a fan fail on me yet, and got 5 dual-x running at that speed for almost two months.

To undervolt download sapphire trixx, tick force constant voltage in the configuration and drop it to 1175. That is a safe voltage and that plus the extra 10% fan will make them run a few C's lower. If you want to undervolt further do it at small steps and test for stability each time.

My 7970 DualX works at core/memory =1000/1500MHz, with core/memory = 1.075/1.5V, the temperature is 70C. I use MSI afterburner. My DualX has VRM monitor.
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February 11, 2014, 09:57:50 AM
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If it is under warranty I would go ahead. Mine runs at 77-80 too.

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sameev29
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February 11, 2014, 10:32:05 AM
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Be carefull, dual-x don't have vrm temperature sensors, and these get hot. Check the back of the card, if you start seeing some white traces over the pcb, specially near the psu power connection and the caps, it means vrms are overheating. At stock voltage vrms when gpu is 80c should be around 120 C. It looks like you are undervolting in gpu-z, if so you shouldn't have a problem at 80 C. I wouldn't go much further though with dual-x. Stock voltage at 85 C for a long time may fry some caps near the vrm.

I'm using them in summertime atm, ambient temp 35-45 C, open case 80mm apart from each other and 80mm coolers in between them to renew the air. They are all at 85% fan. They never go over 75 C this way, on cool days they are at 65 C. Perhaps you should work a bit on your frame to get it to run cooler.

As for the warranty, if you fry it due to vrm overheating they should replace it. Don't say you used them for mining, tell them you where doing render and after some hours of processing the card blew.



I didnt change anything of voltage settings.Its at stock.

My fans are at 75% now.You are running at 85,is it safe?

Also I am getting a good usb fan in a few days.


I haven't had a fan fail on me yet, and got 5 dual-x running at that speed for almost two months.

To undervolt download sapphire trixx, tick force constant voltage in the configuration and drop it to 1175. That is a safe voltage and that plus the extra 10% fan will make them run a few C's lower. If you want to undervolt further do it at small steps and test for stability each time.

My 7970 DualX works at core/memory =1000/1500MHz, with core/memory = 1.075/1.5V, the temperature is 70C. I use MSI afterburner. My DualX has VRM monitor.

During winter my card was running at 72-73 degrees.Actually the main problem is summer is arriving here and its 27 degree celcius temperature now a days.At heavy summer it will be 32-36 degree celcius.I  think temperature will reach 85 then.

My card is under warranty,its been just like 2 months since I started.Do you by chance know if anyone has been running Sapphire 280X at 85 degree or more for like several months without trouble?
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February 11, 2014, 01:42:59 PM
 #20

I hope thats a fine temperature because I can't get any of my 280x cards below 77-83

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