Upgrade to 8gb - which memory ?

fezster

fezster

fezster

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7 Jan 2007
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Tuniq Tower 120 CPU Cooler
Gigabyte GA-P35-DS3R (Socket 775)
G.Skill 4GB DDR2 PQ PC2-8000C5 (2x2GB) CAS5 Dual Channel Kit (F2-8000CL5D-4GBPQ)
Intel Q6600

I'm running the above combination, CPU overclocked to 3ghz, and memory running at 938mhz 5-5-5-18 (I think !).

To be honest, I've never really delved too deep into the overclocking potential of the above, but am happy with the performance. I now want to upgrade to 8gb memory, but am finding it difficult to decide on which memory I should purchase to compliment the above whilst maintaining my overclock.

Would

http://www.overclockers.co.uk/showproduct.php?prodid=MY-039-KS&groupid=701&catid=8&subcat=817

be suitable ?

What's confusing me are the voltages. Most sites say this memory needs to be run at 2.2 - 2.3v. Given my G.Skill currently runs at 2.1v, will this memory work ?

Thanks.
 
I need the extra ram, hence the question (!) Thanks for the advice though :p

My question is more focussed around voltages. Some ram is specced at 2.1v and others at 2.2v. In reality, what difference will it actually make ? And how would you decide which ram to pair up your existing set with to maintain an overclock (assuming you cant buy the same model as you already have) ?
 
You should always match timings and voltages when adding new memory. There is no guarantee different timings or voltages will be stable.

Also, filling up 4 slots on your motherboard may cause a less stable overclock as it puts more strain on the memory controller, ie the northbridge.
 
Harpss1ngh said:
You should always match timings and voltages when adding new memory. There is no guarantee different timings or voltages will be stable.

Also, filling up 4 slots on your motherboard may cause a less stable overclock as it puts more strain on the memory controller, ie the northbridge.
Click to expand...

are you saying that you are not ment to full up all your memory banks, and if you do it would put more strain on your northbridge, is that a manufactory flaw????
 
fezster said:
I need the extra ram, hence the question (!) Thanks for the advice though :p

My question is more focussed around voltages. Some ram is specced at 2.1v and others at 2.2v. In reality, what difference will it actually make ? And how would you decide which ram to pair up your existing set with to maintain an overclock (assuming you cant buy the same model as you already have) ?
Click to expand...

my recommendation for you is to stay with the same brand of memory/timing/ and voltage incase of problems, also i have found out that the system will automatically default to the lowest voltage, i guess that is a safety procaution.

Reason for different voltage rating is what the manufacture recommends you to use at that timming and voltage to achieve that speed.
 
The problem is that the G. Skill memory was very specific (i.e. 1000mhz) and not one Ive seen before, or since.

I'm not sure where I can buy this memory now, or anything similar.
 
Ok - Im considering now buying 2 pairs of the Kingston ram above, and then sell my G. Skill on. Any one able to recommend this ram, or any other at this price point, to replace my G. Skill with. I dont want to lose any performance (or my overclock) by changing over.
 
darkwildchild79 said:
are you saying that you are not ment to full up all your memory banks, and if you do it would put more strain on your northbridge, is that a manufactory flaw????
Click to expand...

erm no.

u can use all slots if you like, but the more slots u use the more strain you put on the memory controller, as it has to control more lanes.

however, if you run at stock speeds, then this is not an issue.

its only when u overclock, as overclocking also puts extra strain on the parts, as your running them faster than they are supposed to go (ie the whole point of overclocking)

it simply means that u may not be able to overclock as high as you can with less ram, or u may need more voltage to the controller to make it stable
 
Seconding the above ^^ My Phenom II needed only about 1.1v on the CPU-NB (memory controller) with 2x DIMMs, but needs 1.3 with 4x to maintain the same overclock stably.

It's a minor annoyance, but not critical once you know about it. If you add the memory and suddenly the overclock dies, that's where to start :)
 
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