Memory Advice Please - ASUS P5B Deluxe

Currently Have:-

Vista Business
Asus P5B Deluxe
Intel CPU Core 2 Duo E6600 2.40GHz
Asus Extreme 7600GS Silent 256MB DDR2
250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB) 800MHz
(5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified


With memory being so cheap now (30% of the price I paid 5 months ago) I am
thinking of purchasing ANOTHER 2 x 1GB Geil Value Memory.

My question to you helpful people is, will it work satisfactory with the
above (ASUS P5B). I often hear that certain motherboards will not recognise
the 4th slot of ram.

Before I go ahead and order this any advice would be greatly appreciated.

Many Thanks

Allan wrote:
> Currently Have:-
>
> Vista Business
> Asus P5B Deluxe
> Intel CPU Core 2 Duo E6600 2.40GHz
> Asus Extreme 7600GS Silent 256MB DDR2
> 250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
> ** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB) 800MHz
> (5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified
>
>
> With memory being so cheap now (30% of the price I paid 5 months ago) I
> am thinking of purchasing ANOTHER 2 x 1GB Geil Value Memory.
>
> My question to you helpful people is, will it work satisfactory with the
> above (ASUS P5B). I often hear that certain motherboards will not
> recognise the 4th slot of ram.
>
> Before I go ahead and order this any advice would be greatly appreciated.
>
> Many Thanks

Check the Asus forum. A poster here managed to use four sticks, after
returning one of the sticks because it was defective.

http://vip.asus.com/forum/view.aspx?...Language=en-us

There are about 800 threads on the forum for the P5B. You can set the page
size to 100 threads per page, meaning you'll have about 8 pages of threads
to go through.

http://vip.asus.com/forum/topic.aspx...ge=1&count=755

Enjoy the cheap RAM while you can, because the price will go up. The
manufacturers cannot continue to lose money forever.

Paul

Allan wrote:
> Currently Have:-
>
> Vista Business
> Asus P5B Deluxe
> Intel CPU Core 2 Duo E6600 2.40GHz
> Asus Extreme 7600GS Silent 256MB DDR2
> 250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
> ** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB)
> 800MHz (5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified
>
>
> With memory being so cheap now (30% of the price I paid 5 months ago)
> I am thinking of purchasing ANOTHER 2 x 1GB Geil Value Memory.
>
> My question to you helpful people is, will it work satisfactory with
> the above (ASUS P5B). I often hear that certain motherboards will not
> recognise the 4th slot of ram.
>
> Before I go ahead and order this any advice would be greatly
> appreciated.
> Many Thanks

The P5B chipset, along with many other chipsets, will address a maximum
of ~ 3GB DDR2 RAM. This is because a 32 bit OS needs address space for
internal functions and it uses the upper addresses to do so. A 32 bit
OS can address up to 4 GB. It needs the upper ~ 1 GB for functions as
stated above, leaving you with ~ 3GB of usable memory.

Any 64 bit OS will not have this limitation, so the maximum capacity of
memory for the MB can be used. Be sure to check Asus's QVL (Qualified
Vendor List) for the specific MB to see what memory is best to use.

Since prices are so low at this time, I would buy the second 2GB kit, as
sooner or later, you will probably have a 64 bit OS.

I Have the P5B-Plus MB and am using the Corsair 2 GB kit from Newegg:
http://www.newegg.com/Product/Produc...82E16820145590

It runs great with the MB running at a FSB of 1333 MHz, which puts the
memory at 833 MHz. Latency is set at 4-4-4-12 (spec is 5-5-5-12). Good
memory.

RobV wrote:
> Allan wrote:
>> Currently Have:-
>>
>> Vista Business
>> Asus P5B Deluxe
>> Intel CPU Core 2 Duo E6600 2.40GHz
>> Asus Extreme 7600GS Silent 256MB DDR2
>> 250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
>> ** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB)
>> 800MHz (5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified
>>
>>
>> With memory being so cheap now (30% of the price I paid 5 months ago)
>> I am thinking of purchasing ANOTHER 2 x 1GB Geil Value Memory.
>>
>> My question to you helpful people is, will it work satisfactory with
>> the above (ASUS P5B). I often hear that certain motherboards will not
>> recognise the 4th slot of ram.
>>
>> Before I go ahead and order this any advice would be greatly
>> appreciated.
>> Many Thanks
>
> The P5B chipset, along with many other chipsets, will address a
> maximum of ~ 3GB DDR2 RAM. This is because a 32 bit OS needs address
> space for internal functions and it uses the upper addresses to do
> so. A 32 bit OS can address up to 4 GB. It needs the upper ~ 1 GB
> for functions as stated above, leaving you with ~ 3GB of usable
> memory.
> Any 64 bit OS will not have this limitation, so the maximum capacity
> of memory for the MB can be used. Be sure to check Asus's QVL
> (Qualified Vendor List) for the specific MB to see what memory is
> best to use.
> Since prices are so low at this time, I would buy the second 2GB kit,
> as sooner or later, you will probably have a 64 bit OS.
>
> I Have the P5B-Plus MB and am using the Corsair 2 GB kit from Newegg:
> http://www.newegg.com/Product/Produc...82E16820145590
>
> It runs great with the MB running at a FSB of 1333 MHz, which puts the
> memory at 833 MHz. Latency is set at 4-4-4-12 (spec is 5-5-5-12).
> Good memory.

BTW, my CPU is a E6600 also.

Your motherboard, while using a 32 bit operating system such as Vista
Business, will only recognize 3.2 GB of the 4 GB you are planning on using.

--
---------------------
DaveW
"Allan" <allans2004-> wrote in message
news:...
> Currently Have:-
>
> Vista Business
> Asus P5B Deluxe
> Intel CPU Core 2 Duo E6600 2.40GHz
> Asus Extreme 7600GS Silent 256MB DDR2
> 250GB Seagate Barracuda SATA II 300 7200rpm 16MB cache
> ** Geil Value DDR2 2.0GB PC6400 Dual Channel memory kit (2 x 1GB) 800MHz
> (5-5-5-15) +Aluminium heat spreader, ATI Crossfire Ceritified
>
>
> With memory being so cheap now (30% of the price I paid 5 months ago) I am
> thinking of purchasing ANOTHER 2 x 1GB Geil Value Memory.
>
> My question to you helpful people is, will it work satisfactory with the
> above (ASUS P5B). I often hear that certain motherboards will not
> recognise the 4th slot of ram.
>
> Before I go ahead and order this any advice would be greatly appreciated.
>
> Many Thanks

"DaveW" <> wrote in message
news:HbydnQgXfP-...
> Your motherboard, while using a 32 bit operating system such as Vista
> Business, will only recognize 3.2 GB of the 4 GB you are planning on
> using.
>
> --
> ---------------------
> DaveW


Many Thanks for ALL your replies.
Basically it seems pointless purchasing another 2 x 1Gb Ram if it will not
recognise it all.


Thanks for advice

32 bits Windows need use /PAE option in boot.ini to use 4 GB
http://www.microsoft.com/whdc/system...AE/pae_os.mspx