Trouble clamping Intel CPU fan/heatsink down tight
in [Hardware]
|
From: jw on 29 Apr 2010 05:38 I have an Intel mobo, D845PEBT2 with a Intel 2.4GHz cpu. I bought a new 3.06 cpu with fan to upgrade. The fan that came with the cpu was a generic no-name fan, that wouldn't clamp down tight, so I used the original Intel cpu fan, keeping an eye on the temperatures, while awaiting for the P2 Intel fan (C91249)to arrive. When it arrived and was installed it didn't fit tightly either. the clamps were all into the slots correctly, but when I would flip the clamp down levers, there was no resistance in the clamps and the fan didn't get any tighter. In all my messing around somehow the cpu got burned out. Are there different bases that need to be installed on the mobo to accept different fans? There certainly no mention of that being the case in the Intel owners manual. Looking at the 2.4 GHz fan and the 2.8Ghz and higher fan side by side there is no visible difference in the way the clamp down to fasten. Thanks Duke
From: Paul on 29 Apr 2010 06:49 jw(a)eldorado.com wrote: > > I have an Intel mobo, D845PEBT2 with a Intel 2.4GHz cpu. I bought a > new 3.06 cpu with fan to upgrade. The fan that came with the cpu was > a generic no-name fan, that wouldn't clamp down tight, so I used the > original Intel cpu fan, keeping an eye on the temperatures, while > awaiting for the P2 Intel fan (C91249)to arrive. When it arrived and > was installed it didn't fit tightly either. the clamps were all into > the slots correctly, but when I would flip the clamp down levers, > there was no resistance in the clamps and the fan didn't get any > tighter. In all my messing around somehow the cpu got burned out. > > Are there different bases that need to be installed on the mobo to > accept different fans? There certainly no mention of that being the > case in the Intel owners manual. Looking at the 2.4 GHz fan and the > 2.8Ghz and higher fan side by side there is no visible difference in > the way the clamp down to fasten. > > Thanks > > Duke Are the hooks engaged in the retention frame ? I had an Intel cooler from that era, where the plastic cams applied too much force. Rather than modify the heatsink, to fix it, I just bought an aftermarket cooler and it fit fine. As far as I know, the S478 processors are protected by THERMTRIP. The motherboard should turn off the power supply, if the processor gets too hot. That is supposed to prevent burnout. If you have an SLxxx number (printed on the label on the box the processor came in), perhaps I can find a datasheet for the processor. I took a look, and don't seem to have any P4 era datasheets on disk right now. Must have left them on another computer. Another thing to consider, is some Prescott (90nm) processors, have a sensing pin that Intel added to those processors. Using that pin, the processor can tell it is plugged into an "old" motherboard, and the processor will not "start" if it detects an old motherboard. Prescotts might work in something like 848/865/875 chipsets, and those chipsets may have the appropriate provision to feed the sense pin what it is looking for. A number of people using 90nm Celerons, got a "black screen" when plugging that processor into their motherboard. And those Celerons, had the sensing pin. That doesn't constitute "burnout", it is just an incompatible combination of S478 parts. OK, here is the Intel page. There isn't enough detail here. The parts that work in this board, are 0.13u processors (Northwood) and not 90nm (Prescott or later). I can tell from the contents of the list, that the last generations of S478 processors, are not intended for this board. http://www.intel.com/support/motherboards/desktop/D845PEBT2/sb/cs-012857.htm This would be a 0.13u Northwood, to fit that motherboard. No sense pin, and no problems. http://processorfinder.intel.com/details.aspx?sSpec=SL6QC I've even seen some sneaky retailers, selling *Xeon* 3.06 processors, as if they're desktop processors. The pinout may be different on those. So getting an ID on the part first, would be a start. Paul
From: jw on 29 Apr 2010 13:33 On Thu, 29 Apr 2010 06:49:38 -0400, Paul <nospam(a)needed.com> wrote: >Are the hooks engaged in the retention frame ? I had an Intel cooler >from that era, where the plastic cams applied too much force. Rather >than modify the heatsink, to fix it, I just bought an aftermarket >cooler and it fit fine. > >As far as I know, the S478 processors are protected by THERMTRIP. >The motherboard should turn off the power supply, if the processor >gets too hot. That is supposed to prevent burnout. > >If you have an SLxxx number (printed on the label on the box >the processor came in), perhaps I can find a datasheet for the >processor. I took a look, and don't seem to have any P4 era >datasheets on disk right now. Must have left them on another >computer. > >Another thing to consider, is some Prescott (90nm) processors, >have a sensing pin that Intel added to those processors. Using >that pin, the processor can tell it is plugged into an "old" >motherboard, and the processor will not "start" if it detects >an old motherboard. Prescotts might work in something like >848/865/875 chipsets, and those chipsets may have the >appropriate provision to feed the sense pin what it is looking >for. A number of people using 90nm Celerons, got a "black screen" >when plugging that processor into their motherboard. And those >Celerons, had the sensing pin. That doesn't constitute "burnout", >it is just an incompatible combination of S478 parts. > >OK, here is the Intel page. There isn't enough detail here. The >parts that work in this board, are 0.13u processors (Northwood) >and not 90nm (Prescott or later). I can tell from the contents >of the list, that the last generations of S478 processors, are >not intended for this board. > >http://www.intel.com/support/motherboards/desktop/D845PEBT2/sb/cs-012857.htm > >This would be a 0.13u Northwood, to fit that motherboard. >No sense pin, and no problems. > >http://processorfinder.intel.com/details.aspx?sSpec=SL6QC > >I've even seen some sneaky retailers, selling *Xeon* 3.06 >processors, as if they're desktop processors. The pinout may >be different on those. > >So getting an ID on the part first, would be a start. > > Paul I ran this CPU with my old heat sink and it ran well for several weeks Duke
|
Pages: 1 Prev: SpywareBlaster Next: Good Graphic Card Test & Control Prog |