Would these 2 memorys mix well

[Stickboy46]

Ok i already have 2gb of this memory

OCZ Platinum Revision 2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227139

Capacity 2GB (2 x 1GB)
Speed DDR2 800 (PC2 6400)
Cas Latency 4
Timing 4-4-4-15
Voltage 1.9V - 2.1V
Heat Spreader Yes
Features Platinum Mirrored XTC Heatspreader
ATI CrossFire Certified
OCZ Enhanced Latency Technology


Would it mix well with this
Patriot eXtreme Performance 1GB (2 x 512MB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220143

Capacity 1GB (2 x 512MB)
Speed DDR2 800 (PC2 6400)
Cas Latency 4
Timing 4-4-4-12
Voltage 2.2V
Heat Spreader Yes
Features EPP (Enhanced Performance Profiles) Ready


They look very simlar in timings and such. I would just do 4 gb of the first but it would be a waste as im doing 32bit XP or Vista and it would only read a little over 3 anyways. Thanks

Ryan

 

[subtlewordplay]

I wouldn't reccomend mismatching any of your memory. It might cause system instability, or incompatibilty. Although the timings are similar, a spec here and there in the spd might give you some compatibilty problems. Especially being different size ram, you're best bet is to go with what you already have, if planning to upgrade.

 

[boostm3]

I wouldn't reccomend mismatching any of your memory. It might cause system instability, or incompatibilty. Although the timings are similar, a spec here and there in the spd might give you some compatibilty problems. Especially being different size ram, you're best bet is to go with what you already have, if planning to upgrade.

You make mention of different size ram being an issue.. What if the two different ram modules were the exact same ram from the same mfg, but one modules was a 1gb (2 x 512) and the other was a 2gb module (2 x 1gb) ? Do you think that would be inadvisable also?

 

[boostm3]

i just asked a similar question. The Patriot ram is really top notch stuff.

http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&t=233489&highlight=

I wish I would have gotten more precise answers. and the people who replied it seemed as if they didnt even read my posts lol. I'll let you know how it goes when it gets here. By tomorrow or Tuesday.

the 2 I chose are same brand, same timings, and same voltage though so it's slightly different than what you're asking. I'd think it should work for you though. I always here not to mix brands but it could be just a myth people say just because it's what they hear. I haven't seen any real evidence not to. Especially with the quality of RAM we have out now. I think mixing cheapo ram would be a bad idea.

Are you overclocking? My main concern would be if they work well overclocking together.

And I asked a similar question, too, over here: http://forumz.tomshardware.com/hardware/mix-quantities-ddr2-channels-ftopict233444.html

Seems like its a hot issue for alot of folks.. Makes sense, cause Im sure alot of people, like me, maybe equipped their mobos initially with a 1 gb (2 x 512) ddr2 module, but then decided when it came time to fill up the additional pair of empty slots, maybe cause the ram price came down significantly, whatever, to fill them with a 2gb (2 x 1gb) ddr2 module, creating a new total of 3gb ddr2 ram..... The answer to my post on this was to go ahead and mix the sizes as long as the mfg, speed, timings, and model numbers of the ram type are the same. Of course, 'Ram Guy' at Corsair advises against mixing even the module Sizes, claiming:

"Adding 2 x 1 GB modules to your existing 2 x 512MB will most likely not be stable and is not recommended. The ICs used for the 512MB modules are different from the ones that are used in the 1GB modules. In order for the system to be stable all the RAM needs to be in sync, and all the ICs on the RAM need to be exactly the same. Since the ICs are not exactly the same on these 2 different sets of modules, there may be instances where the RAM gets out of sync (even if it is in milliseconds) and this can cause errors and crash your system. It is NOT recommended to mix and match any modules together on this platform as it can cause many problems. My suggestion would be to add only what you currently have in your system to the exact part number or replace all the modules with new ones. Sorry about that."

Most posters here say hes full of Sxxx! So, Ill probably go with them, and not the Corsair rep..

 

[boostm3]

Of course, 'Ram Guy' at Corsair advises against mixing even the module Sizes, claiming:

"Adding 2 x 1 GB modules to your existing 2 x 512MB will most likely not be stable and is not recommended. The ICs used for the 512MB modules are different from the ones that are used in the 1GB modules. In order for the system to be stable all the RAM needs to be in sync, and all the ICs on the RAM need to be exactly the same. Since the ICs are not exactly the same on these 2 different sets of modules, there may be instances where the RAM gets out of sync (even if it is in milliseconds) and this can cause errors and crash your system. It is NOT recommended to mix and match any modules together on this platform as it can cause many problems. My suggestion would be to add only what you currently have in your system to the exact part number or replace all the modules with new ones. Sorry about that."

Most posters here say hes full of Sxxx! So, Ill probably go with them, and not the Corsair rep..

yah, I hear he's an idiot too. lol To be fair maybe he just says things based on company policy.

Actually I'm doing it different than you.. Addiing 2 512's after already having 2 1gb's. heh. Should be more thrilling for you to suddenly have 2 extra gb's though! lol

Yea, so, if youll be doing your addon before mine, let me know how you make out. Unfortunately, the 1gb module IM using is Corsair XMS2 PC2 6400C4 ram, which $95 just for the 1gb module, which is one of the more expensive 1gb dd42 PC2-6400C4 modules around. The 2gb version sells for $180!! But, at least, there's a $50 mail in rebate which helps.. Of course, its currently OUt of Stock at newegg!!

 

[Mondoman]

... I'd think it should work for you though. I always here not to mix brands but it could be just a myth people say just because it's what they hear. I haven't seen any real evidence not to. Especially with the quality of RAM we have out now. I think mixing cheapo ram would be a bad idea....

Exactly right.
The other issue is that some MBs (especially el cheapo ones and ones with lower-tier chipsets) are only marginal in their support for 4 DIMMs installed.