Old Ram not showing up With new ram

Vangogh · 05-14-2007, 09:01 AM

Ok i just purchassed a new 1gb Stick of ddr2 (667) SDram i previously had in 2 sticks of 512 mb ddr2 (533) Ram my old ram does not show up with the new ram i've tried every slot configuration and I always get 1gb of ram showing. I looked in my bios and it only showed 1gb so I updated that, nothing. I can run Everest and it shows both sticks as being installed. Is it because of the different FSB?Looked on computer manufacture website and it does say expandable to 2gb. any suggestions my computer stats are as follows:

Emachines T5212
Windows XP Media Center Edition SP2
Dual Core Intel Pentium D 805, 2666mhz
System Mem : 1024 mb sdram ??????
Bios Type : Intel (12/11/06)

Ram

Samsung M3 78T655CZ3 - CD5
512mb (1rank, 4 banks)
Unbuffered
DDR2-533 (266 Mhz)
(Computer Originally had 2 Sticks of this ram and recognized both and showed 1gb of Ram)

Hyundai 1GB DDR2-667 DDR2 SDRAM

1024 MB (1Rank, 8 Banks)
Unbuffered
DDR2-667 (333Mhz)

Do I need 2 1gb Sticks to get the full value of both slots all I really wanted was a slight upgrade and goto 1.5 gb of ram any comments suggestion would be greatly appreciated if any other info is needed just let me know TYVM.

bry623 · 05-14-2007, 09:43 AM

The speed should be the same on both.

Vangogh · 05-14-2007, 10:23 AM

So I theroy if I buy another 1gb Stick from the same manufacturer then that should solve my problem and show 2gb correctly is there any other way of fixing this that anyone knows of ty all in advance

**blackduck30** · 05-14-2007, 04:49 PM

What will happen if you install two different speeds of ram is that your system will slow the fastest ram down to match the slower ram, so in your case the 667 will be slowed down to 533.
Now as for it showing as 1G that could be a compatibility problem. It is preferred that when upgrading ram that you buy identical units so there is not chance of conflict.
There is no way to know how 2 different sticks of ram will work together or if at all, it is just hit and miss

Vangogh · 05-14-2007, 05:21 PM

So in other words best bet buy another of the exact same stick it should increase it to 2gb and hopefully show both as being in there =D tyvm any other advice would be welcomed ty all

**blackduck30** · 05-14-2007, 09:47 PM

Yes, thats what i would do, it is sometimes hard to mix and match different brands of ram. plus you are better off using the increased speeds of 667

**speedster123** · 05-15-2007, 07:58 AM

http://www.memorystock.com/memory/eM...inesT5212.html

Vangogh · 05-16-2007, 11:26 AM

Ty all very much most helpful

05-14-2007, 09:01 AM	#1 (permalink)
Vangogh Registered User Join Date: May 2007 Posts: 4 OS: XP	Old Ram not showing up With new ram Ok i just purchassed a new 1gb Stick of ddr2 (667) SDram i previously had in 2 sticks of 512 mb ddr2 (533) Ram my old ram does not show up with the new ram i've tried every slot configuration and I always get 1gb of ram showing. I looked in my bios and it only showed 1gb so I updated that, nothing. I can run Everest and it shows both sticks as being installed. Is it because of the different FSB?Looked on computer manufacture website and it does say expandable to 2gb. any suggestions my computer stats are as follows: Emachines T5212 Windows XP Media Center Edition SP2 Dual Core Intel Pentium D 805, 2666mhz System Mem : 1024 mb sdram ?????? Bios Type : Intel (12/11/06) Ram Samsung M3 78T655CZ3 - CD5 512mb (1rank, 4 banks) Unbuffered DDR2-533 (266 Mhz) (Computer Originally had 2 Sticks of this ram and recognized both and showed 1gb of Ram) Hyundai 1GB DDR2-667 DDR2 SDRAM 1024 MB (1Rank, 8 Banks) Unbuffered DDR2-667 (333Mhz) Do I need 2 1gb Sticks to get the full value of both slots all I really wanted was a slight upgrade and goto 1.5 gb of ram any comments suggestion would be greatly appreciated if any other info is needed just let me know TYVM.

05-14-2007, 09:43 AM	#2 (permalink)
bry623 Manager, The Conversation Pit/Analyst, Security Team Join Date: Apr 2002 Location: NW Territory circa 1787 Posts: 10,464 OS: winxp pro sp2	Re: Old Ram not showing up With new ram The speed should be the same on both. __________________ Scarlet and Gray in L.A. 9/13/08

05-14-2007, 10:23 AM	#3 (permalink)
Vangogh Registered User Join Date: May 2007 Posts: 4 OS: XP	Re: Old Ram not showing up With new ram So I theroy if I buy another 1gb Stick from the same manufacturer then that should solve my problem and show 2gb correctly is there any other way of fixing this that anyone knows of ty all in advance

05-14-2007, 04:49 PM	#4 (permalink)
blackduck30 Moderator Join Date: Sep 2004 Location: Wollongong/Australia Posts: 4,232 OS: XP pro SP3/Vista Ultimate My System	Re: Old Ram not showing up With new ram What will happen if you install two different speeds of ram is that your system will slow the fastest ram down to match the slower ram, so in your case the 667 will be slowed down to 533. Now as for it showing as 1G that could be a compatibility problem. It is preferred that when upgrading ram that you buy identical units so there is not chance of conflict. There is no way to know how 2 different sticks of ram will work together or if at all, it is just hit and miss __________________ Blackduck30 Time is like money and milk, It's always running out Any Donations Help Keep TSF Free For All

05-14-2007, 05:21 PM	#5 (permalink)
Vangogh Registered User Join Date: May 2007 Posts: 4 OS: XP	Re: Old Ram not showing up With new ram So in other words best bet buy another of the exact same stick it should increase it to 2gb and hopefully show both as being in there =D tyvm any other advice would be welcomed ty all

05-14-2007, 09:47 PM	#6 (permalink)
blackduck30 Moderator Join Date: Sep 2004 Location: Wollongong/Australia Posts: 4,232 OS: XP pro SP3/Vista Ultimate My System	Re: Old Ram not showing up With new ram Yes, thats what i would do, it is sometimes hard to mix and match different brands of ram. plus you are better off using the increased speeds of 667 __________________ Blackduck30 Time is like money and milk, It's always running out Any Donations Help Keep TSF Free For All

05-15-2007, 07:58 AM	#7 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York Posts: 3,864 OS: xp pro My System	Re: Old Ram not showing up With new ram http://www.memorystock.com/memory/eM...inesT5212.html __________________ Infection Detection and Removal Thermal Grease Instructions Bench Test

05-16-2007, 11:26 AM	#8 (permalink)
Vangogh Registered User Join Date: May 2007 Posts: 4 OS: XP	Re: Old Ram not showing up With new ram Ty all very much most helpful