"Best brain award" if you solve this one!

  • Thread starter Thread starter Adriaan
  • Start date Start date
Avgas is for gasoline powered piston driven airplanes, some
propellers are driven by turbine engines such as the PT6
series from P&W, these and turbojets use JetA-1 or other
variations of kerosene based fuel. The kerosene that is in
your furnace or the truck is not quite the same.


--
James H. Macklin
ATP,CFI,A&P
Wichita, KS


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


| Hello
| >Just so you know... Avgas is for propeller driven planes,
| a Boeing flies on kerosene.
|
| That is also correct
|
| You have just received another best brain award.
|
| --
| Hope This Helps
| Haus
| Not a MVP
| Not a MS-MVP
| Not nothing just a good ole boy..;)
| | > Just so you know... Avgas is for propellor driven
planes,
| > a Boeing flies on kerosene.
| > >-----Original Message-----
| > >How can a 512Mb Module be identcal to a 256Mb Module.
| > Just think about it.
| > >
| > >Despite the fact that the performance specifications
are
| > possibly the same: that is the beginning and the end.
| > >
| > >What you have written in not so many words, is that a
| > Boeing 737 is identical to a Boeing 767: think about it.
| > They both are made by Boeing, both comply with FAA
| > regulations, both run on Avgas, both have two wings,
they
| > both have two engines and so on......just that one is
| > double the capacity of the other!
| > >
| > >OK I give you the 'not the best brain award'.
| > >.
| > >
|
|
 
Hello Adrian
I have found that XP is very ram friendly but at the same time it is very
picky, where on the older OS mixing ram sizes would not cause any problems,
it is just the opposite with XP. For example if you want 768meg ram use
3x256, provided you have 3 slots or 2x256, 2x512 and so on, just make sure
they are the same size and speed.
This is just what I have found with computer upgrading, I have no idea what
it is with XP, maybe just my luck.
Click to expand...

YMMV but I have got one 128Mb module and 2 * 256Mb modules on my XP
Pro system - and it works fine. (MSI K7 Pro Motherboard).
 
Adriaan said:
I am running Windows XP Home SP1a, with a DFI AD73 pro
m/board. I originally had 256mb PC2100 DDR, and I have
now purchased an identical 512mb module to upgrade to
768mb. The two modules work perfectly by themselves, but
when they're both onboard the system is very unstable and
slow. Sometimes reboots as soon as it gets to the memory
test. If it manages to start up it hangs within five
minutes.
Click to expand...

RAM from different manufacturers, or even from the same manufacturer
but different production lots, can have internal differences in the
material composition and/or the physical layout of the RAM chips.

These differences can affect the strength and timing of the signals
returned from the RAM and Windows is sensitive to these differences,

The fact that the two modules work okay by themselves but there are
problems when they are both installed confirms that you have this type
of problem.

The only "cure" is to replace the older 256 mb module with a new one
that is *identical* (manufacturer and production lot) to the new 512
mb module. Or just run with the 512 mb module by itself.

Good luck


Ron Martell Duncan B.C. Canada
--
Microsoft MVP
On-Line Help Computer Service
http://onlinehelp.bc.ca

"The reason computer chips are so small is computers don't eat much."
 
-----Original Message-----


Quite easily you moron. They can be identical in all but size - of course
they can.

What you've typed is unadulterated B.S.


.
Click to expand...
Sorry Cerridwen, But Aircraft is one area that I'm the
expert in. I've been a Aircraft Mechanic since 1977 a
licensed Mechanic since 1984 and both the 737 and 767
burn Jet A.
 
The P51 is an awesome machine is it not?
I've worked on the PT6 at Pacific airmotive corp.
Are you a CFI on the Mustang? Ya Dumb ? I know!
I feel envy coming on.
 
Never had a chance to fly the P51, the greatest WWII ear
fighter. It held its own until the early 1950s. If I had
millions in the bank I'd have one in the hanger, along with
a Corsair and a few other great fighters, P47, F8F. But if
I was restricted to one airplane I'd want the T1 Jayhawk.
The PT6 is an awesome engine, the big versions are over
1,500 hp.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


| The P51 is an awesome machine is it not?
| I've worked on the PT6 at Pacific airmotive corp.
| Are you a CFI on the Mustang? Ya Dumb ? I know!
| I feel envy coming on.
|
| >-----Original Message-----
| >Avgas is for gasoline powered piston driven airplanes,
| some
| >propellers are driven by turbine engines such as the PT6
| >series from P&W, these and turbojets use JetA-1 or other
| >variations of kerosene based fuel. The kerosene that is
| in
| >your furnace or the truck is not quite the same.
| >
| >
| >--
| >James H. Macklin
| >ATP,CFI,A&P
| >Wichita, KS
| >
| >
| >--
| >The people think the Constitution protects their rights;
| >But government sees it as an obstacle to be overcome.
| >
| >
| >| >| Hello
| >| >Just so you know... Avgas is for propeller driven
| planes,
| >| a Boeing flies on kerosene.
| >|
| >| That is also correct
| >|
| >| You have just received another best brain award.
| >|
| >| --
| >| Hope This Helps
| >| Haus
| >| Not a MVP
| >| Not a MS-MVP
| >| Not nothing just a good ole boy..;)
| >| | >| > Just so you know... Avgas is for propellor driven
| >planes,
| >| > a Boeing flies on kerosene.
| >| > >-----Original Message-----
| >| > >How can a 512Mb Module be identcal to a 256Mb
| Module.
| >| > Just think about it.
| >| > >
| >| > >Despite the fact that the performance specifications
| >are
| >| > possibly the same: that is the beginning and the end.
| >| > >
| >| > >What you have written in not so many words, is that
| a
| >| > Boeing 737 is identical to a Boeing 767: think about
| it.
| >| > They both are made by Boeing, both comply with FAA
| >| > regulations, both run on Avgas, both have two wings,
| >they
| >| > both have two engines and so on......just that one is
| >| > double the capacity of the other!
| >| > >
| >| > >OK I give you the 'not the best brain award'.
| >| > >.
| >| > >
| >|
| >|
| >
| >
| >.
| >
 
Could one memory stick be double sided and the other is not? I had compatability issues with 2 memory modules of same size but one was double sided and one was not. Once the vendor sent me the double sided version all was fine.
 
-----Original Message-----
Never had a chance to fly the P51, the greatest WWII ear
fighter. It held its own until the early 1950s. If I had
millions in the bank I'd have one in the hanger, along with
a Corsair and a few other great fighters, P47, F8F. But if
I was restricted to one airplane I'd want the T1 Jayhawk.
The PT6 is an awesome engine, the big versions are over
1,500 hp.
Click to expand...

I wasn't aware that the P51 was an "ear fighter," and I
think you meant "on the hanger," unless you meant "hangar."
No Best Brain award for you.
 
I just can't type when I'm tired, too bad the spellchecker
can't tell I meant era and not ear. On the spelling of
hangar, yep, I blew that but in my defense I probably had a
typo and selected the wrong correction.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


in message |
| >-----Original Message-----
| >Never had a chance to fly the P51, the greatest WWII ear
| >fighter. It held its own until the early 1950s. If I
had
| >millions in the bank I'd have one in the hanger, along
| with
| >a Corsair and a few other great fighters, P47, F8F. But
| if
| >I was restricted to one airplane I'd want the T1 Jayhawk.
| >The PT6 is an awesome engine, the big versions are over
| >1,500 hp.
| >
| >
|
| I wasn't aware that the P51 was an "ear fighter," and I
| think you meant "on the hanger," unless you meant
"hangar."
| No Best Brain award for you.
 
Hi,

I am really sorry but I may not be able to give you the exact reasoning behind this. But as far as my knowledge goes its always said to have as much memory as possible on a single chip. Just in case if you need to upgrade always have both the memory chips of the same specifications and CAPACITY i.e if one is 256 MB try to make the other one of 256 MB as well, otherwise the system behaves erratically. I have tried this on numerous computers and it was found to be true

Thanks
Alok
 
Adrian

Assuming the 2 memory modules are compatible with each other, you would probably need to increase the voltage that is made available to the memory slots with both of them installed. I'm not sure of specifics here, but the manufacturer should be able to help you out with voltage values.
 
Find out if the memory is compatible with your motherboard, check what type of RAM your motherboard works on. e.g mine runs on DDR ram. If it is compatible you may have damage the modules. check that the ram slots are secured and that the clips r touching the module. 2.You may have damaged the modules via static electricity, 3. check that the gold pins are not bent.
THIS WAS WRITTEN BY A 12 YR OLD (NO JOKE)
 
If you have more than two RAM slots have you tried moving the modules to different slots on the mobo?
 
When using DDR modules they are best when both in the same bank are identical in size and speed. i.e. 256 & 256 @ 2100 or 256 & 256 @ 2700
 
Hello

The answer is there in the question you have given. The problem is with the hardware(memory module). It is the bus speed which is varying. If you need the best case then use both the memory modules of the same make and size

mailto:[email protected]

Raghu
 
If the motherboard is a newer dual channel type, you must use identical (down to the same batch) pieces of memory in the two banks. Same size is a given

----- Adriaan wrote: ----

I am running Windows XP Home SP1a, with a DFI AD73 pro
m/board. I originally had 256mb PC2100 DDR, and I have
now purchased an identical 512mb module to upgrade to
768mb. The two modules work perfectly by themselves, but
when they're both onboard the system is very unstable and
slow. Sometimes reboots as soon as it gets to the memory
test. If it manages to start up it hangs within five
minutes
 
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