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From: mc on 15 Jul 2010 10:26
On Jul 9, 7:09 pm, "BillW50" <Bill...(a)aol.kom> wrote:
> Innews:i187jr$g3s$1(a)news.eternal-september.org,
> BillW50 typed on Fri, 9 Jul 2010 17:24:57 -0500:
>
> > In
> >news:f5763c39-3277-4e9a-91ad-22238ae69686(a)u7g2000yqm.googlegroups.com,
> > mc typed on Sat, 3 Jul 2010 12:26:06 -0700 (PDT):
> >> i changed the cpu in an optiplex 240gx and 260gx. everything works
> >> fine. I did not install a new (pink) membrane that is stuck to the
> >> cooling fins. Is this important or not?
> >> mc
>
> > OH YES THAT IS VERY IMPORTANT!!!! That is a thermal pad! You do not
> > use thermal paste like Ben said with thermal pads. You use them
> > completely dry.
>
> > Damn! I never peeled one of those off before. Does it feel sticky on
> > one side like tape?
>
> And another thing... using it without the thermal pad... the heatsink
> might not make good contact since it might be designed for using with a
> thermal pad alone. Thus you might end up with a gap and the CPU will
> burn out in no time. I hope it isn't too late to warn you about this.
>
> Thermal pads looks generally like a rubbery type of pad. Although some
> actually look and feel like a metal plate. And they come in different
> colors, like pink, gray, black, etc. For the inexperienced, if you don't
> see any white paste, don't use any because it must be using a thermal
> pad instead.
>
> Don't touch the thermal pad with your fingers since the oil from your
> fingers I believe will contaminate them. It is okay to clean the CPU
> side with acetone or some other approved cleaner. I don't know about
> isopropyl alcohol though as Ben suggested. That is a new one for me. As
> I thought it leaves too much residue to be any good. And rubbing alcohol
> contains isopropyl alcohol too, but it also has oils which I believe
> would be very bad for sure.
>
> --
> Bill
> Gateway MX6124 ('06 era) 1 of 3 - Windows XP SP2

Thanks for the responses, both cpus have the pink rubbery pad (kind of
squashed). Both are still working. I'm not sure where you can buy
these thermal pads if they need to be replaced. I'm getting ready to
change a MB in a 4550 so I will be doing it again, and I do not know
if the 4550 has a thermal pad or paste. Has anyone ever used the
silver thermal compound paste? I've used this on the older pentium 133
chips.
mc
From: mc on 15 Jul 2010 10:33
On Jul 9, 6:17 pm, "BillW50" <Bill...(a)aol.kom> wrote:
> Innews:140d2683-27ad-414d-9c0a-d55c7af24530(a)u7g2000yqm.googlegroups.com,
> William R. Walsh typed on Tue, 6 Jul 2010 08:15:33 -0700 (PDT):
>
> > Hi!
>
> > I would recommend cleaning that membrane material off. Scrape it
> > smoothly off with something like a credit card edge and use isopropyl
> > alcohol to assure the surface is clean. Replace it with any good
> > quality heatsink compound, applied in a *thin* layer.
>
> I have no WiFi here, so I can't see the original post. So forgive me if
> I get something wrong. And William, you are okay with isopropyl alcohol?
> I didn't think that was clean enough. Acetone is what I hear more often
> than not.
>
> And careful, some heatsinks use thermal pads and don't use any grease on
> these. They don't need them for one and I am not sure if it hurts them
> if you do use grease.
>
> > Radio Shack used to sell some under their own brand. It was cheap and
> > worked well. I'm not sure they are carrying it any longer.
>
> They call it heatsink compound if I remember correctly.
>
> > You should do something, as your processor could overheat under load.
>
> One should monitor the CPU temperature before and after. Both under idle
> and running at 100% CPU usage. Get to know what it should be. I always
> monitor my CPU temps on all of my machines. That way you can see pending
> problems.
>
> Careful with too low of a reading too. As I have one laptop (and I have
> two more the same model), and only this one reads low. Like 20 to 40
> degrees too low. And the CPU will burn out if you push it max for heavy
> games in about 6 weeks.
>
> I assume it burns out because the motherboard believes the CPU is
> running cool all of the time and the fan doesn't bother kicking the fan
> up any higher.
>
> --
> Bill
> Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC
> Windows XP SP2 (quit Windows updates back in May 2009)

I forgot to ask....how do I monitor the cpu temperature? I've neve
done that before.
mc
From: Ben Myers on 16 Jul 2010 09:02
On 7/15/2010 10:33 AM, mc wrote:
> On Jul 9, 6:17 pm, "BillW50"<Bill...(a)aol.kom> wrote:
>> Innews:140d2683-27ad-414d-9c0a-d55c7af24530(a)u7g2000yqm.googlegroups.com,
>> William R. Walsh typed on Tue, 6 Jul 2010 08:15:33 -0700 (PDT):
>>
>>> Hi!
>>
>>> I would recommend cleaning that membrane material off. Scrape it
>>> smoothly off with something like a credit card edge and use isopropyl
>>> alcohol to assure the surface is clean. Replace it with any good
>>> quality heatsink compound, applied in a *thin* layer.
>>
>> I have no WiFi here, so I can't see the original post. So forgive me if
>> I get something wrong. And William, you are okay with isopropyl alcohol?
>> I didn't think that was clean enough. Acetone is what I hear more often
>> than not.
>>
>> And careful, some heatsinks use thermal pads and don't use any grease on
>> these. They don't need them for one and I am not sure if it hurts them
>> if you do use grease.
>>
>>> Radio Shack used to sell some under their own brand. It was cheap and
>>> worked well. I'm not sure they are carrying it any longer.
>>
>> They call it heatsink compound if I remember correctly.
>>
>>> You should do something, as your processor could overheat under load.
>>
>> One should monitor the CPU temperature before and after. Both under idle
>> and running at 100% CPU usage. Get to know what it should be. I always
>> monitor my CPU temps on all of my machines. That way you can see pending
>> problems.
>>
>> Careful with too low of a reading too. As I have one laptop (and I have
>> two more the same model), and only this one reads low. Like 20 to 40
>> degrees too low. And the CPU will burn out if you push it max for heavy
>> games in about 6 weeks.
>>
>> I assume it burns out because the motherboard believes the CPU is
>> running cool all of the time and the fan doesn't bother kicking the fan
>> up any higher.
>>
>> --
>> Bill
>> Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC
>> Windows XP SP2 (quit Windows updates back in May 2009)
>
> I forgot to ask....how do I monitor the cpu temperature? I've neve
> done that before.
> mc

Most Dell desktop motherboards do not have the necessary hardware for
monitoring CPU temperature... Ben Myers

From: BillW50 on 19 Jul 2010 16:43
In
news:357b2789-0fb4-4ecf-8498-25141039da55(a)k19g2000yqc.googlegroups.com,
mc typed on Thu, 15 Jul 2010 07:26:44 -0700 (PDT):
> Thanks for the responses, both cpus have the pink rubbery pad (kind of
> squashed). Both are still working. I'm not sure where you can buy
> these thermal pads if they need to be replaced. I'm getting ready to
> change a MB in a 4550 so I will be doing it again, and I do not know
> if the 4550 has a thermal pad or paste. Has anyone ever used the
> silver thermal compound paste? I've used this on the older pentium 133
> chips.
> mc

I would have never removed the thermal pads. Hopefully the heatsink can
squeeze closer to make up for the loss of height. I don't know if the
silver thermal compound will be ok or not. I would monitor the temps in
any case just to make sure.

In
news:01ce4812-7bb4-45b6-ba74-ba09334cba8b(a)y11g2000yqm.googlegroups.com,
mc typed on Thu, 15 Jul 2010 07:33:43 -0700 (PDT):
> I forgot to ask....how do I monitor the cpu temperature? I've neve
> done that before.
> mc

There are lots of software that will monitor CPU and hard drive temps.
One I like a lot (even though it is designed for laptops, but should
work ok on desktops) is BattStat Beta v0.98. I guess there is now a
0.99b version now too.

http://users.rcn.com/tmtalpey/BattStat/

--
Bill
Gateway MX6124 ('06 era) 1 of 3 - Windows XP SP2


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