What is the best memory to use when overclocking via FSB

[mikef208]

I need to know what memory to get for a system I am building. It will be based on either the Abit KT7A or the MSI Trubo(most likely the abit). So I will prolly be overclocking via FSB. LMK what you think?

 

[Bill Kunert]

Compuwiz is taking orders for some great PC133 cas2 256mb ram for less than $120 a stick. I bought 512mb last week and it's good stuff. Check his post from yesterday for info. He's great to deal with.
Regards
Bill

 

[Renob]

I have tried just about all memory and for me the best luck I have had is with Mosel Vitalic you can get it a memman.com BTW they are great to deal with and you order will go out with in 24 hours dont now about the weekends.

 

[RabeaticSquirrel]

My get bashed for this, but i would suggest Mushkin. I tried many brands prior to Mushkin, only wasting maoney IMO in the end. Once I discovered how great Mushkin was, I was hooked. TOP quality stuff.....

 

[mikef208]

bump

 

[mikef208]

bump

 

[paulip88]

I haven't tried any of this stuff personally, but I have heard some good remarks about the Kingmax PC150 DIMMs.

 

[Gringo]

i swear by mushkin myself. not cost effective, but, its component i will never have to worry about.

I run rev2 128MB's OC'd to 145 on a KT7. From the stability i get, i am pretty sure these will go past 150 NP.

Most important is to get CAS2-2-2; this will be a bigger jump than OC'ing 3-3-3.

G.

 

[mikef208]

I was thinking mushkin myself, that seems to sound like what everybody says most often so they must be good. The problem is with the speed. Correct me if I am wrong, cause I have only picked up a little about this, and I may be wrong. But the new kt133a, I have heard it can easily hit a FSB of 150, plus doesn't memory add like another 33mhx(i think) so wouldn't that make it run at 183mhz or something. tell me if I am wrong, and if I am right, what memory can handle this? Also I am hearing about this Virtual Channel RAM, is it any good, can it be overclocked? I have only seen one review of it so far, and the memory was from apacer i think. LMK

 

[trmiv]

I think you could just run the memory bus at Host Clock instead of Host Clock + PCI if you are OCing the bus to 150, then your memory would run at 150.

 

[mikef208]

Yeah that could work, but I am trying to get as much out of my memory as I can, the only memory I have heard of so far that can do over 150 guarenteed is by overclockerz.com. I have dealt with them a few times, with no problems, but I do know of there reputation.

 

[Taplight]

mikef208,

I can't comment on the VCRAM cause I don't know jack about that, but as far as the memory speed for the kt133a chipset, the mhz stays the same. The only change they made was enabling 133mhz fsb for the cpu. Overclocking will yield mhz of the fsb and memory in tandem(145mhz fsb =145mhz RAM) although thats not truly the case because the fsb is ddr so it would be 290mhz fsb = 145mhz RAM. I'm not sure if you can change the settings for fsb separate from the memory(i.e., set the fsb to 145 and leave the RAM at 133). I know on the kt133 chipset, the memory was 133 while the fsb was 100 and that was the selling point of the kt133 that it could run the memory asynchronously from the fsb so you could use pc133 ram. Anyway, the bottom line is that on the kt133a boards, if the fsb is set to 133, the memory will be set to 133(unless you can tweek that in the bios) and you can walk those two up together when overclocking.

As far as ram is concerned, I have some mushkin rev3 which is rated cas2 at 150 and thats also another important point when overclocking. You'll get better results being able to run at cas 2. I read an article(if I find it I'll post it on this thread for you) that in order to get the same performance out of cas 3, you'd have to run it something like 15mhz higer than the cas2. So it seems that if your going to try for some serious overclock, you'd want the memory to handle cas 2 at the higher speeds. If anything I've posted here is inaccurate or needs some better explanation, please jump in and correct it. We're all here to learn from each other.

Taplight

 

[trmiv]

Getting 183 mhz out of memory might be a but much to ask. If you can get your FSB of the KT133A and the memory to 150 at 2-2-2 or 2-3-2, then you are doing pretty well. I know they have that 175 stuff, but I have heard of a lot of people getting burned by them with the memory not running at the "guaranteed" speeds. Even if it does 175 you are still 8 mhz short of 183.

 

[mikef208]

Thanks for the help I will need to look this stuff over and soak it all in.