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Old December 8, 2008, 09:10 AM
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Default Mixing ram?

Is it okay to mix ram? If it is, I'm planning to put 8GB in to my system and upgrade to vista ultimate 64-bit.

I have 4GB Patriot Viper 800mhz at 4-4-4-12@2.2v. and i was wondering if i could also put in 4GB of OCZ Reaper HPC edition 1066mhz rated at 5-5-5-18@2.2v .

is it safe to mix ram like that? how would i set the timings because the two are different?
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Old December 8, 2008, 09:11 AM
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btw, all are DDR2
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GPU:XFX 5870 1GB
HDD:150GB Raptor,WD500GB,WD1TB BLACK
MOBO:Asus Striker 2 Formula
RAM:OCZ HPC REAPER 4GB 1066mhz pc2-8500 (5-5-5-15)@2.2v
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CASE:Silvertstone TJ07
SOUND:Auzentech X-Fi Prelude
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Old December 8, 2008, 09:17 AM
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not recommended to mix and match memory at all.
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Old December 8, 2008, 09:29 AM
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why not?
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Old December 8, 2008, 09:34 AM
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It is not recommended because it can conflict with each other and have errors. Now I have mixed 667 and 533 ram and both from different companies and it has been running fine for years.
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Old December 8, 2008, 09:37 AM
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Quote:
Originally Posted by Cadence View Post
why not?
Because the secondary timings often do not match up. There might be a setting that you don't even see that doesn't play nice between one set or the other.

Running 4 sticks is always pushing a bit, and running 4 2gig sticks is going to push the limits even more.

It might work, but don't be disapointed if you end up having to sell one set in order to pick up a matching set for the other one.
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Old December 8, 2008, 09:50 AM
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what if i changed the 4-4-4-12 to 5-5-5-18?
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GPU:XFX 5870 1GB
HDD:150GB Raptor,WD500GB,WD1TB BLACK
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RAM:OCZ HPC REAPER 4GB 1066mhz pc2-8500 (5-5-5-15)@2.2v
PSU:CORSAIR 750W
CASE:Silvertstone TJ07
SOUND:Auzentech X-Fi Prelude
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Old December 8, 2008, 09:51 AM
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the 4-4-4-12 used to run at 5-5-5-12
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CPU:E8400 @ 3.8GHZ -->Zalman 9700NT HSF
GPU:XFX 5870 1GB
HDD:150GB Raptor,WD500GB,WD1TB BLACK
MOBO:Asus Striker 2 Formula
RAM:OCZ HPC REAPER 4GB 1066mhz pc2-8500 (5-5-5-15)@2.2v
PSU:CORSAIR 750W
CASE:Silvertstone TJ07
SOUND:Auzentech X-Fi Prelude
Keyboard:Logitech G15 V2
Mouse:Razer DeathAdder
Case Cooling:2x92mm exhaust,2x120mm exhaust, 2x120mm Ultra Kaze(3000RPM)intake.
Running:Win7 64-bit Ultimate
F@H PPD:46957

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Old December 8, 2008, 09:53 AM
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That would be the settings to use when you try, but again... the issue you might run into is a secondary timing depending on what ICs are used on the two mem sets. It will probably work, but there are no guarantees.
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Old December 8, 2008, 09:58 AM
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well my options i guess are down to...get another set of either ram....or take my chances....comments?
__________________
CPU:E8400 @ 3.8GHZ -->Zalman 9700NT HSF
GPU:XFX 5870 1GB
HDD:150GB Raptor,WD500GB,WD1TB BLACK
MOBO:Asus Striker 2 Formula
RAM:OCZ HPC REAPER 4GB 1066mhz pc2-8500 (5-5-5-15)@2.2v
PSU:CORSAIR 750W
CASE:Silvertstone TJ07
SOUND:Auzentech X-Fi Prelude
Keyboard:Logitech G15 V2
Mouse:Razer DeathAdder
Case Cooling:2x92mm exhaust,2x120mm exhaust, 2x120mm Ultra Kaze(3000RPM)intake.
Running:Win7 64-bit Ultimate
F@H PPD:46957

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