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#11
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Reboots since installing an XFX 7950
As the Newegg link shows, it IS passive. :-) As such, the first thing to
monitor are the GPU temperatures. If they are high (approaching 100C), then improve case ventilation. -- "War is the continuation of politics by other means. It can therefore be said that politics is war without bloodshed while war is politics with bloodshed." "Bill Smith" wrote in message ... Might not be related, but when my sons fan died on his video card, it would re-boot at random...usually while he was gaming ! He ran it like that for about 2 months. I replaced the fan and he's still usuing that card...a real prize that one...lol I'm curious if you have one of the XFX cards that is passive. If so, I hope you have very good airflow in your case...FYI ! On Sat, 27 Jan 2007 04:01:48 -0600, "Albert Wiersch" wrote: I've experienced several spontaneous system reboots since installing a new XFX 7950GT. I bought this card: http://www.newegg.com/Product/Produc...82E16814150189 Any ideas? My thoughts are either the card is defective or the drivers. I am overclocking my Core 2 Duo CPU only but did not have this problem with my previous 7900GS card. Albert |
#12
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Reboots since installing an XFX 7950
"First of One" root@localhost wrote in message ... As the Newegg link shows, it IS passive. :-) As such, the first thing to monitor are the GPU temperatures. If they are high (approaching 100C), then improve case ventilation. Yes, it is passive. I overclock my system and have several fans in there and leave the case open since the CPU temp stays lower that way (I have an Antec Sonata II case and it could have been made with better airflow--which is why I leave the side panel off). Some of the air blows across the video card heat sink. I'll have to watch the GPU temperature if I have more problems but so far the clean driver install seems to be working but it's still too early to tell for sure. I'll probably investigate the GPU temp anyway and see what it is. I'm not on the computer right now but will check it out later. Albert |
#13
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Reboots since installing an XFX 7950
"Albert Wiersch" wrote in message ... Antec 450 watts... so I don't think so. Plus, my power meter (Kill-A-Watt) never reads much above 200 watts when under load. Never seen it above 250 watts. I do have 3 hard drives in there (Raptor and two Seagate 7200.10 320GB) and a DVD drive... 2 GB of RAM, a few fans. I think a 450 watt can handle all that. Albert The watts aren't the issue. The amount of amps the power supply is capable of providing on all the rails is. Do you have the videocard on its own rail? i.e. is the power connector for your card NOT chained with any other connectors being used by hard drives, etc? RF. |
#14
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Reboots since installing an XFX 7950
RF wrote:
"Albert Wiersch" wrote in message ... Antec 450 watts... so I don't think so. Plus, my power meter (Kill-A-Watt) never reads much above 200 watts when under load. Never seen it above 250 watts. I do have 3 hard drives in there (Raptor and two Seagate 7200.10 320GB) and a DVD drive... 2 GB of RAM, a few fans. I think a 450 watt can handle all that. Albert The watts aren't the issue. The amount of amps the power supply is capable of providing on all the rails is. Do you have the videocard on its own rail? i.e. is the power connector for your card NOT chained with any other connectors being used by hard drives, etc? RF. I'm thinking it isn't the PSU, but if it is, I concur it's a question of peak amperage, as you mention. Perhaps all those mechanical drive motors are drawing too much current if they are all on at once, they are +12v hungry just like the GPU. Unplug everything, boot minimally to test. |
#15
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Reboots since installing an XFX 7950
"RF" wrote in message ... The watts aren't the issue. The amount of amps the power supply is capable of providing on all the rails is. Do you have the videocard on its own rail? i.e. is the power connector for your card NOT chained with any other connectors being used by hard drives, etc? I assume it is on its own rail as it is plugged into the dedicated PCI-E power connector or whatever that special power connector is for the video card. Besides, the system rebooted when I wasn't doing any heavy video processing so it wouldn't have been drawing a lot of power at the time (as far as I know anyway). Also, my case and power supply are pretty new (2nd half 2006), so I assume they were built to handle the new stuff. It was still working this morning and I ran Prime95 all night long, so I'm still hopeful it was a driver issue that's been cleaned up (thanks Andi). Albert |
#16
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Reboots since installing an XFX 7950
;-)
"Albert Wiersch" wrote in message ... "RF" wrote in message ... The watts aren't the issue. The amount of amps the power supply is capable of providing on all the rails is. Do you have the videocard on its own rail? i.e. is the power connector for your card NOT chained with any other connectors being used by hard drives, etc? I assume it is on its own rail as it is plugged into the dedicated PCI-E power connector or whatever that special power connector is for the video card. Besides, the system rebooted when I wasn't doing any heavy video processing so it wouldn't have been drawing a lot of power at the time (as far as I know anyway). Also, my case and power supply are pretty new (2nd half 2006), so I assume they were built to handle the new stuff. It was still working this morning and I ran Prime95 all night long, so I'm still hopeful it was a driver issue that's been cleaned up (thanks Andi). Albert |
#17
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Reboots since installing an XFX 7950
On Sat, 27 Jan 2007 19:31:50 -0600, "Albert Wiersch"
wrote: "DaveW" wrote in message ... You didn't give much info about your system, but my first take on it is that you have too underpowered of a power supply unit to drive that card and all your other computer components. That card is very power demanding, but I don't know how many other components you have installed in your system that are draining the PSU. -- DaveW Antec 450 watts... so I don't think so. Plus, my power meter (Kill-A-Watt) never reads much above 200 watts when under load. Never seen it above 250 I doubt you'd want to pull 250 for very long out of a 450 supply. They just don't have the duty cycle. Reading the reviews on NewEgg some swear by Antec and some swear at them. It is an inexpensive supply. watts. I think so. :-)) They recommend a 500 watt supply. Remember that a supply will only be capable of reaching its ratings when the loads are well balanced across all of the lines and then they will only do it for a short time. These supplies are a long way from 100% duty cycle. figure 50 to 60% continuous on a good day. Changing drivers may have helped reduce the load, but 450 along with an over clocked core duo is really pushing it. I do have 3 hard drives in there (Raptor and two Seagate 7200.10 320GB) and a DVD drive... 2 GB of RAM, a few fans. I think a 450 watt can handle all that. 3 drives, an over clocked core duo, I'm running an Athlon FX 62 dual core, (2800 core OC to 3,000) Sapphire 1950XT and 3 drive set up with a 750 watt ThermalTake supply. It'll be getting a SATA RAID soon. I had a similar set up to what you have and it was so close to the limit all I had to do was plug in one more 90 mm fan and it'd quit. The symptoms were just as you describe. Now the smallest supply I'm using is over 500 watts. The others are 630 to 750 watts. No more marginal supplies for me. Good luck, Albert Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
#18
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Reboots since installing an XFX 7950
"Roger" wrote in message Antec 450 watts... so I don't think so. Plus, my power meter (Kill-A-Watt) never reads much above 200 watts when under load. Never seen it above 250 I doubt you'd want to pull 250 for very long out of a 450 supply. They just don't have the duty cycle. Reading the reviews on NewEgg some swear by Antec and some swear at them. It is an inexpensive supply. When I overclock to 3.375GHz I have to raise the CPU voltage to 1.4V and it pulls maybe 220 watts at the max under load. Most of the time it is less than 200. But now I am just overclocking to 3.150GHz and can use normal voltage and it is well below 200 watts (I think even when it's under load) when I do it that way. It also keeps the CPU much cooler. I think I'll just stick with 3.150GHz and not stress it so much. The little extra speed is nice but not very noticable unless I do timed tests. They recommend a 500 watt supply. Remember that a supply will only be capable of reaching its ratings when the loads are well balanced across all of the lines and then they will only do it for a short time. These supplies are a long way from 100% duty cycle. figure 50 to 60% continuous on a good day. Changing drivers may have helped reduce the load, but 450 along with an over clocked core duo is really pushing it. Thanks for the info. I thought Antec was suppose to be a better brand. Though I believe one or two have gone out on me in several years, but I am a heavy computer user with several computers. I had a similar set up to what you have and it was so close to the limit all I had to do was plug in one more 90 mm fan and it'd quit. The symptoms were just as you describe. I'm still hoping it was a driver issue. I haven't had the problem in several days now. Thanks, Albert |
#19
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Reboots since installing an XFX 7950
In article , am
says... Thanks for the info. I thought Antec was suppose to be a better brand. It is, but Antec has more than one line of power supply. See: http://www.antec.com/us/pro_powerSupply.html I submit that, as with most things, price varies with quality and features. Though I believe one or two have gone out on me in several years, but I am a heavy computer user with several computers. There is nothing made by man that will not fail sooner or later. Thanks, Albert Bill -- Gmail and Google Groups. This century's answer to AOL and WebTV. |
#20
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Reboots since installing an XFX 7950
On Tue, 30 Jan 2007 11:53:57 -0800, Bill
wrote: In article , am says... Thanks for the info. I thought Antec was suppose to be a better brand. It is, but Antec has more than one line of power supply. See: http://www.antec.com/us/pro_powerSupply.html I submit that, as with most things, price varies with quality and features. Ur right. All I had seen were the economy versions. Still, only 3, 12 volt rails and 450 watts is a bit light for a system of that magnitude. Though I believe one or two have gone out on me in several years, but I am a heavy computer user with several computers. Drives, power supplies, motherboards, uncounted fans, and a couple of CPUs. I don't remember ever losing a video card though. I lost the MoBoard when a PS failed. Drives have both increased in capacity and come down in price dramatically, but I seem to be seeing a corresponding reduction in their lifetimes as well. I built up a 64 bit dual core and am now trying to find drivers for my HDTV tuner Digital@NYWhere-ATSC card. That is the only thing I haven't been able to get on 64 bit XP Pro. I may have to replace it if I can't find any drivers. Now if I could only find a "good" HDMI to DVI converter and not just a breakout box... I have 4 other computers that it'll work in, but I don't want to have to put one of them out in the shop with the new one. That and convincing my wife I need a monitor for the spare computer might take some doing as she'd want to know why I wanted a 22 to 24" wide screen for a spare. :-)) I'd really put that on the big computer and the old 17" on the spare. I've reached the point where the "upgrades" are no longer minor and find there is very little I can use out of the previous machine. I've even gone to full size tower cases with the last two being quite different than the flimsy Aluminum ones I've used for some time. With Vista degrading premium audio and video content my AV machine is definitely staying XP Pro. There is nothing made by man that will not fail sooner or later. Thanks, Albert Bill Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
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