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BFG 8800 fan
Hello All
I have a BFG 8800 GTS OC 640mb video card in the top PCI-e slot. Then in the next PCI -e slot I have an Adaptec RAID card. The problem is the close proximity of the two cards is pushing the Adaptec card over temp. I don't know what temp the video card is running at as I cannot find out how to check the temp. Checking the rear vent on the video card there appears to be only a very small amount of air flow. Should there be a lot of air flow through this vent? Regards Phil |
#2
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BFG 8800 fan
Phil_C wrote:
Hello All I have a BFG 8800 GTS OC 640mb video card in the top PCI-e slot. Then in the next PCI -e slot I have an Adaptec RAID card. The problem is the close proximity of the two cards is pushing the Adaptec card over temp. I don't know what temp the video card is running at as I cannot find out how to check the temp. Checking the rear vent on the video card there appears to be only a very small amount of air flow. Should there be a lot of air flow through this vent? Regards Phil In this sample photo, there are exhaust vents inside the case, as well as on the faceplate. Which means not all the hot air gets to leave through the faceplate. (And no, I'm not going to recommend placing tape in an obvious spot, to stop it. You don't know if there is sufficient vent space, for the cooler to work properly, if you block part of it :-) ) http://images10.newegg.com/NeweggIma...143-081-02.jpg If you want an aftermarket cooler, there is something like this. The fins and fan are placed on the opposite side of the card, which would prevent waste heat from hitting your Adaptec card. http://www.thermalright.com/a_page/m..._hr03_plus.htm http://www.legionhardware.com/document.php?id=624&p=2 Chances are, there are other metal assemblies between the CPU socket and the video card, which will prevent the use of the HR03_plus. Like if you were using a Tuniq Tower on the CPU, there might not be much space left for the HR03_plus. http://images10.newegg.com/NeweggIma...154-001-03.jpg Alternately, a water block, and water cooling, is another way to pull the heat from the case (especially if the radiator is mounted outside the case). This shows a video card with water block installed at the factory. http://images10.newegg.com/NeweggIma...143-099-03.jpg You don't mention what motherboard you are using. Is this an SLI motherboard, with more than one video slot ? Can you reposition the cards, so the 8800 cannot roast its nearest neighbor ? It would help a lot to know what the layout of the motherboard looks like, and which slots have stuff in them. Paul |
#3
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BFG 8800 fan
On Jun 19, 7:48 pm, Paul wrote:
Phil_C wrote: Hello All I have a BFG 8800 GTS OC 640mb video card in the top PCI-e slot. Then in the next PCI -e slot I have an Adaptec RAID card. The problem is the close proximity of the two cards is pushing the Adaptec card over temp. I don't know what temp the video card is running at as I cannot find out how to check the temp. Checking the rear vent on the video card there appears to be only a very small amount of air flow. Should there be a lot of air flow through this vent? Regards Phil In this sample photo, there are exhaust vents inside the case, as well as on the faceplate. Which means not all the hot air gets to leave through the faceplate. (And no, I'm not going to recommend placing tape in an obvious spot, to stop it. You don't know if there is sufficient vent space, for the cooler to work properly, if you block part of it :-) ) http://images10.newegg.com/NeweggIma...143-081-02.jpg If you want an aftermarket cooler, there is something like this. The fins and fan are placed on the opposite side of the card, which would prevent waste heat from hitting your Adaptec card. http://www.thermalright.com/a_page/m...php?id=624&p=2 Chances are, there are other metal assemblies between the CPU socket and the video card, which will prevent the use of the HR03_plus. Like if you were using a Tuniq Tower on the CPU, there might not be much space left for the HR03_plus. http://images10.newegg.com/NeweggIma...154-001-03.jpg Alternately, a water block, and water cooling, is another way to pull the heat from the case (especially if the radiator is mounted outside the case). This shows a video card with water block installed at the factory. http://images10.newegg.com/NeweggIma...143-099-03.jpg You don't mention what motherboard you are using. Is this an SLI motherboard, with more than one video slot ? Can you reposition the cards, so the 8800 cannot roast its nearest neighbor ? It would help a lot to know what the layout of the motherboard looks like, and which slots have stuff in them. Paul Hello Paul Thanks for the reply. I have an Intel D975XBX2 which has the following ports in order from top to bottom. PCI-e x 16 (x16 slot) - 8800 PCI - 8800 heat sink and cooler PCI-e x 8 (x16 slot) - RAID PCI - Sound Card PCI-e x 4 (x16 slot) - Empty PCI - TV Card I am not sure if it is SLI capable or not but either way I have no intentions of running SLI. Due to the three different speeds of the PCI-e slots I cannot move cards around with out losing performance. I have been doing some research and it appears the BFG Tech nForce 680i SLI has three x 16 PCI-e slots, two rated at x16 and one at x8 which will allow the RAID card to be moved away from the 8800. It will also leave an empty slot below the 8800 card. Regards Phil |
#4
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BFG 8800 fan
Phil_C wrote:
On Jun 19, 7:48 pm, Paul wrote: Phil_C wrote: Hello All I have a BFG 8800 GTS OC 640mb video card in the top PCI-e slot. Then in the next PCI -e slot I have an Adaptec RAID card. The problem is the close proximity of the two cards is pushing the Adaptec card over temp. I don't know what temp the video card is running at as I cannot find out how to check the temp. Checking the rear vent on the video card there appears to be only a very small amount of air flow. Should there be a lot of air flow through this vent? Regards Phil In this sample photo, there are exhaust vents inside the case, as well as on the faceplate. Which means not all the hot air gets to leave through the faceplate. (And no, I'm not going to recommend placing tape in an obvious spot, to stop it. You don't know if there is sufficient vent space, for the cooler to work properly, if you block part of it :-) ) http://images10.newegg.com/NeweggIma...143-081-02.jpg If you want an aftermarket cooler, there is something like this. The fins and fan are placed on the opposite side of the card, which would prevent waste heat from hitting your Adaptec card. http://www.thermalright.com/a_page/m...php?id=624&p=2 Chances are, there are other metal assemblies between the CPU socket and the video card, which will prevent the use of the HR03_plus. Like if you were using a Tuniq Tower on the CPU, there might not be much space left for the HR03_plus. http://images10.newegg.com/NeweggIma...154-001-03.jpg Alternately, a water block, and water cooling, is another way to pull the heat from the case (especially if the radiator is mounted outside the case). This shows a video card with water block installed at the factory. http://images10.newegg.com/NeweggIma...143-099-03.jpg You don't mention what motherboard you are using. Is this an SLI motherboard, with more than one video slot ? Can you reposition the cards, so the 8800 cannot roast its nearest neighbor ? It would help a lot to know what the layout of the motherboard looks like, and which slots have stuff in them. Paul Hello Paul Thanks for the reply. I have an Intel D975XBX2 which has the following ports in order from top to bottom. PCI-e x 16 (x16 slot) - 8800 PCI - 8800 heat sink and cooler PCI-e x 8 (x16 slot) - RAID PCI - Sound Card PCI-e x 4 (x16 slot) - Empty PCI - TV Card I am not sure if it is SLI capable or not but either way I have no intentions of running SLI. Due to the three different speeds of the PCI-e slots I cannot move cards around with out losing performance. I have been doing some research and it appears the BFG Tech nForce 680i SLI has three x 16 PCI-e slots, two rated at x16 and one at x8 which will allow the RAID card to be moved away from the 8800. It will also leave an empty slot below the 8800 card. Regards Phil PCI Express is 250MB/sec bidirectional per lane. Placing the RAID card in the x4 slot, gives a max 1GB/sec speed. Do you have enough disks to hit that limit ? The x4 interface is on the Southbridge, so the DMI bus between Northbridge and Southbridge, is the limiting factor. DMI is also rated at 1GB/sec bidirectional, just enough to pass all the PCI Express x4 bandwidth to the Northbridge. Simultaneous access to Southbridge high bandwidth devices, would compete for bandwidth, with the PCI Express x4 slot of the BadAxe2. Still, moving the RAID card down to that slot, is a quick fix, and you might not even notice the difference. Come to think of it, with the bifurcated (Intel's term, not mine) PCI Express interface on the Northbridge, you could well be getting x8 for the upper slot and x8 for the next slot down. There should be no difference between... PCI-e x 8 (x16 slot) - 8800 Original config PCI - 8800 heat sink and cooler PCI-e x 8 (x16 slot) - RAID PCI - Sound Card PCI-e x 4 (x16 slot) - Empty PCI - TV Card and PCI-e x 8 (x16 slot) - RAID PCI - Sound Card PCI-e x 8 (x16 slot) - 8800 PCI - 8800 heat sink and cooler PCI-e x 4 (x16 slot) - Empty PCI - TV Card With the second config, maybe you could fit a "slot cooler" in the x4 slot ? I hope the intake on this thing, is on the correct side. http://www.newegg.com/Product/Produc...82E16835888602 http://www.newegg.com/Product/Produc...82E16835129025 The Northbridge has a total of x16 lanes internally. There are x24 lanes of wires on the outside of the chip. Internal multiplexing, steers the x16 of lanes, to the x24 wires, as directed by the BIOS. That is how you get x16 in the primary slot, when the secondary is not being used, and how the primary and secondary each get x8 when both slots are being used. (That steering was originally done with "paddle cards" on the first SLI designs, and later via external high speed PCI Express buffer/mux chips. The Intel design moves the buffering inside the Northbridge.) Now, some BIOS are sensitive to which slot gets the graphics card, so you can never be sure it'll work until you try it. (Some Asus boards started life, not even being able to accept a RAID card in the second video card slot.) Paul |
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