Author Topic: Whats my RAM make?  (Read 1506 times)

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Offline pooky2483

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Whats my RAM make?
« on: December 20, 2012, 10:49:40 pm »
Is there a command or somethiing I can do to find out the manufacturer of my RAM?
I want to find out because I want to upgrade to 8GB and I have 3GB installed 1GB & 2GB. So I can get 3 more 2GB sticks of the same make
All I can find out at the mo is they’re DDR2 1066 800Mhz

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Offline Mark Greaves (PCNetSpec)

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Re: Whats my RAM make?
« Reply #1 on: December 20, 2012, 11:33:19 pm »
I don't think you can, usually RAM doesn't report much to the system BIOS .. but you could see what:
Code: [Select]
sudo dmidecode -t 17
reports.



That said sticking with one "make" isn't necessarily important.

and what's wrong with pulling the RAM and having a looksee ?

.
« Last Edit: December 20, 2012, 11:35:59 pm by Mark Greaves (PCNetSpec) »
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Offline pooky2483

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Re: Whats my RAM make?
« Reply #2 on: December 21, 2012, 04:04:24 am »
I don't think you can, usually RAM doesn't report much to the system BIOS .. but you could see what:
Code: [Select]
sudo dmidecode -t 17

pooky2483@pooky2483-ubuntu12:~$ sudo dmidecode -t 17
[sudo] password for pooky2483:
# dmidecode 2.11
SMBIOS 2.5 present.

Handle 0x0039, DMI type 17, 27 bytes
Memory Device
   Array Handle: 0x0037
   Error Information Handle: Not Provided
   Total Width: 64 bits
   Data Width: 64 bits
   Size: 1024 MB
   Form Factor: DIMM
   Set: None
   Locator: DIMM0
   Bank Locator: BANK0
   Type: DDR2
   Type Detail: Synchronous
   Speed: 800 MHz
   Manufacturer: Manufacturer0
   Serial Number: SerNum0
   Asset Tag: AssetTagNum0
   Part Number: PartNum0

Handle 0x003B, DMI type 17, 27 bytes
Memory Device
   Array Handle: 0x0037
   Error Information Handle: Not Provided
   Total Width: 64 bits
   Data Width: 64 bits
   Size: 2048 MB
   Form Factor: DIMM
   Set: None
   Locator: DIMM1
   Bank Locator: BANK1
   Type: DDR2
   Type Detail: Synchronous
   Speed: 800 MHz
   Manufacturer: Manufacturer1
   Serial Number: SerNum1
   Asset Tag: AssetTagNum1
   Part Number: PartNum1

Handle 0x003D, DMI type 17, 27 bytes
Memory Device
   Array Handle: 0x0037
   Error Information Handle: Not Provided
   Total Width: Unknown
   Data Width: Unknown
   Size: No Module Installed
   Form Factor: DIMM
   Set: None
   Locator: DIMM2
   Bank Locator: BANK2
   Type: Unknown
   Type Detail: None
   Speed: Unknown
   Manufacturer: Manufacturer2
   Serial Number: SerNum2
   Asset Tag: AssetTagNum2
   Part Number: PartNum2

Handle 0x003F, DMI type 17, 27 bytes
Memory Device
   Array Handle: 0x0037
   Error Information Handle: Not Provided
   Total Width: Unknown
   Data Width: Unknown
   Size: No Module Installed
   Form Factor: DIMM
   Set: None
   Locator: DIMM3
   Bank Locator: BANK3
   Type: Unknown
   Type Detail: None
   Speed: Unknown
   Manufacturer: Manufacturer3
   Serial Number: SerNum3
   Asset Tag: AssetTagNum3
   Part Number: PartNum3

pooky2483@pooky2483-ubuntu12:~$


Quote
That said sticking with one "make" isn't necessarily important.

Just thought it'd be better sticking with one brand as they'd work together better. But I'm thinking of getting four newer sticks of 2Gb RAM instead.

Quote
and what's wrong with pulling the RAM and having a looksee ?

Just didn’t fancy opening up my PC and looking inside as that’d mean switching off and I don’t wanna do that lol

I even ran my XP VM and tried CPUID but that didnt sho RAM details and also told me I was using only ONE of my 2 cores and I thought I'd set it to use both!

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Offline Mark Greaves (PCNetSpec)

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Re: Whats my RAM make?
« Reply #3 on: December 21, 2012, 09:25:04 am »
As I said, *most* RAM doesn't report much to the SMBIOS, so it doesn't matter which OS you use.

Quote
Just thought it'd be better sticking with one brand as they'd work together better. But I'm thinking of getting four newer sticks of 2Gb RAM instead.

They say use the same manufacturer/model in dual (or quad) channel RAM, but what they  mean is that they are more likely to have the same chip configuration and be "close" in performance.

Ideally you'd get "matched pairs" (usually from the same manufacturer, but not necessarily) from someone that specialises in performance RAM .. these *should* have been tested to see how they perform "as a pair", as there are variations in performance even in the same make/model .. but you pay for this, so (like with everything else) it really comes down to pocket size ;)

That said, it's all relative and depends on usage .. you have to work out if you'd benefit from "properly" matched for performance pairs .. otherwise you're probably right just get same make/model .. all I meant was make/model isn't "always" the important factor in either performance or price.

I won't go into CAS latency and other "memory timings" .. I'll leave that to Google ;)

.
« Last Edit: December 21, 2012, 10:12:15 am by Mark Greaves (PCNetSpec) »
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