Topic: Cheap Chinese VGA Coolers - FTW ! (Read 6626 times)
Yup, only 2-3 of them actually touch the die. But the others still disperse heat, and are quite warm. Is a tad bit overkill, but if I upgrade my GPU it won't be
can you post a closer up pic of one sitting on a card, thanks.
Here's a K100 on my non-reference Gigabyte 5770: http://imgur.com/a/TWTts#0
wow, talk about overkill. I'm willing to bet maybe 2 heatpipes out of the 5 are actually contacting the die.
can you post a closer up pic of one sitting on a card, thanks.
Here's a K100 on my non-reference Gigabyte 5770: http://imgur.com/a/TWTts#0
can you post a closer up pic of one sitting on a card, thanks.
I really can't comment on the 5870, but I can tell you that the coolers that I currently use on my 5830's WILL NOT cool a non-reference 6950 (if that helps)....
My main goal with trying these was to keep my 5830's mining after the shitty Sapphire fans died.....and for that, these things kick the Sapphire Cooler's asses.
Quieter, cooler.....the only problem ? BULKY. You can not run these in a case, as you will never get more than 2 cards on a motherboard....due to the size of the coolers.
My main goal with trying these was to keep my 5830's mining after the shitty Sapphire fans died.....and for that, these things kick the Sapphire Cooler's asses.
Quieter, cooler.....the only problem ? BULKY. You can not run these in a case, as you will never get more than 2 cards on a motherboard....due to the size of the coolers.
Let me get this right : them cheap coolers are only for the core ?
Seems they work good. Do the fans support PWM or just simple 3 pin fans ?
What is cooling the memory / VRMs ?
Reference cards or not ?
Underclocked memory ?
Sapphire 5830 Extreme, no memory cooling from factory, so none used (but heatsinks for RAM were included with this kit). The VRM uses the factory attached heatsink that I left on after pulling off the original fan assembly. Memory is all underclocked on the cards as well.
Fans are 3pin or 4pin molex, no PWN support.....just basic case fans @ 90mm.
The heatpipes also are 'for real' as I broke one and the card was noticeable HOTTER reporting in CGMiner by over 10c at idle......so they DO work.
I have had great luck with these dual-heatpipe coolers @ 90mm as well as the 120mm size on my 6950 that idled at 70 with the OEM XFX heatsink, but now maintains under 60C at full load mining and overclocked.
YMMV....but I am using 6 of them and LOVe them. Overclocked, mining, SILENT and COOL running cards.
I suppose these won't be suitable for reference ( so no factory VRM cooler and have to buy that separately ) 5870 ( too hot for these to handle I suppose ) ?
Let me get this right : them cheap coolers are only for the core ?
Seems they work good. Do the fans support PWM or just simple 3 pin fans ?
What is cooling the memory / VRMs ?
Reference cards or not ?
Underclocked memory ?
Sapphire 5830 Extreme, no memory cooling from factory, so none used (but heatsinks for RAM were included with this kit). The VRM uses the factory attached heatsink that I left on after pulling off the original fan assembly. Memory is all underclocked on the cards as well.
Fans are 3pin or 4pin molex, no PWN support.....just basic case fans @ 90mm.
The heatpipes also are 'for real' as I broke one and the card was noticeable HOTTER reporting in CGMiner by over 10c at idle......so they DO work.
I have had great luck with these dual-heatpipe coolers @ 90mm as well as the 120mm size on my 6950 that idled at 70 with the OEM XFX heatsink, but now maintains under 60C at full load mining and overclocked.
YMMV....but I am using 6 of them and LOVe them. Overclocked, mining, SILENT and COOL running cards.
The fins are probably aluminum, which should be ok IF they didn't use actual paint on them and anodized instead. That's the main reason I haven't tried any of these coolers out, for that price copper fins are unfeasible and there is no way to know how they treated the actual fins to have the copper color.
The coolers are terrible, I tried the midrange one, in the picture it falsely looks like the fins are copper, in real life it is a very cheap recycled metal that has almost no heat conductivity, painted with something to make it look like copper.
Would you be willing to try a destructive test on your cooler if it's really so poor? Leave the cooler on in open air, and mine on the card. Then nick or cut off the tip of one of the heat pipes with a pair of side cutters. If the heat pipes are actually proper heat pipes and not just for show you should see your temps go up when you do that. I've always wondered whether the cheap eBay ones have real heat pipe and are not just for show like the Dialotek RPM-1050.
I would do that but I threw it away some time ago. From my observation when I had it, the bottom plate is good quality real metal, the heatpipes are also real copper (don't know about their internal).
But the fins are very important, the heatpipe only carries the heat away while the fins absorb the heat and provide the cooling, and the fins on this thing look like they are just for show.
The coolers are terrible, I tried the midrange one, in the picture it falsely looks like the fins are copper, in real life it is a very cheap recycled metal that has almost no heat conductivity, painted with something to make it look like copper.
Would you be willing to try a destructive test on your cooler if it's really so poor? Leave the cooler on in open air, and mine on the card. Then nick or cut off the tip of one of the heat pipes with a pair of side cutters. If the heat pipes are actually proper heat pipes and not just for show you should see your temps go up when you do that. I've always wondered whether the cheap eBay ones have real heat pipe and are not just for show like the Dialotek RPM-1050.
The coolers are terrible, I tried the midrange one, in the picture it falsely looks like the fins are copper, in real life it is a very cheap recycled metal that has almost no heat conductivity, painted with something to make it look like copper.
Has anyone else successfully mated the K90 to a 5830? I have a few Sapphire 5830s whose fans have died and would love to know if others have found the K90 to be a suitable replacement. Finding replacement OEM fans for the Sapphire 5830s I have is next to impossible.
These things are awesome, as I stated ages ago...
5x 5830 Sapphire Extremes running K90 2-heatpipe Coolers. Under 60c running overclocked in a warm room.....and nearly dead silent.
I am also running a K120 on an oddball 6950 XFX card (factory cooler couldn't cool the card, shitty XFX chips...) that I have left and it stays under 60C also, same mining conditions....
Let me get this right : them cheap coolers are only for the core ?
Seems they work good. Do the fans support PWM or just simple 3 pin fans ?
What is cooling the memory / VRMs ?
Reference cards or not ?
Underclocked memory ?
yeah nvm, i cant read when im this tired lol.
Has anyone else successfully mated the K90 to a 5830? I have a few Sapphire 5830s whose fans have died and would love to know if others have found the K90 to be a suitable replacement. Finding replacement OEM fans for the Sapphire 5830s I have is next to impossible.
These things are awesome, as I stated ages ago...
5x 5830 Sapphire Extremes running K90 2-heatpipe Coolers. Under 60c running overclocked in a warm room.....and nearly dead silent.
I am also running a K120 on an oddball 6950 XFX card (factory cooler couldn't cool the card, shitty XFX chips...) that I have left and it stays under 60C also, same mining conditions....
Has anyone else successfully mated the K90 to a 5830? I have a few Sapphire 5830s whose fans have died and would love to know if others have found the K90 to be a suitable replacement. Finding replacement OEM fans for the Sapphire 5830s I have is next to impossible.
I have a K100, one of the huge black ones on the top with multiple heatpipes, and I get 58C on my 5770 with 1000 Mhz Core, 300 Mhz Mem, and 1.2v in 24C ambient. Temps would probably be better if I put another fan in or redo the thermal paste But damn is the thing big (it's a lot longer than my 5770 PCB)
EDIT: I get 54C with 24C Ambient and MX-4 as paste. Pretty sure I can get better if I had alcohol and sandpaper to clean the heatsinks and the gpu. BTW, for smaller GPUs, it has to hang upside down. The heatpipes are upside down, but I don't know whether or not that changes anything.
But damn is the thing big (it's a lot longer than my 5770 PCB)EDIT: I get 54C with 24C Ambient and MX-4 as paste. Pretty sure I can get better if I had alcohol and sandpaper to clean the heatsinks and the gpu. BTW, for smaller GPUs, it has to hang upside down. The heatpipes are upside down, but I don't know whether or not that changes anything.
I have been looking for replacement coolers for my 5870s. Any suggestions? Big and loud is okay
I have 2 5870's running Arctic coolings accelero-xtremes http://www.arctic.ac/en/p/cooling/vga/376/accelero-xtreme-plus-ii.html?c=2182 . They are capable of keeping the "overclocked to the edge" cards cool at fan speeds of 50-55%, I do however run them at 90%. Mine were attached to the used cards I bought, there really expensive ... but after running them for 2 months I can really see why and they are very quiet. The cores on my cards are overclocked to 1030 & 980Mhz, producing 474 and 458Mhs. Should you have the chanse to find these coolers 2nd hand or in discount there a "no brainer". Especially look for ones labled fan not working, the replacement fans are 5$ for the entire 3-fan set.
I just strapped a 3000RPM 120mm case fan to the small crappy cooler on my single fan XFX 6950 (flashed to 1536 shaders) @ 950MHz and it's happily mining 400MH/s at 63C inside a case. Loud as all hell though.
I have been looking for replacement coolers for my 5870s. Any suggestions? Big and loud is okay
$54 for that black one from eBay seems a little steep. It looks very similar to my Arctic Cooling Accelero Twin Turbo II but with less extra little heatsinks, and I walked into my local computer store and walked out with the Accelero for under $56 including 10% sales tax.
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