Hi,

I just posted a thread in the hardware Q&A section asking if I could mount DDR667 ram onto a DDR400 mobo (the Asus A8N-E), and I was told that DDR667 is DDR2 and as such, can't be used on a DDR400-only mobo as the slots are different.

So, I need some advice. I'm planning to overclock my rig, but can't because of my RAM speed (my ideal processor speed equates to DDR400 running at 245/490). So since I can't mount higher speed RAMs on it, any other alternatives?

Or are performance RAM specifically for this (ie. DDR400 but can run at 500/600?)?

Thanks a whole bunch.

DDR667 is under DDR2

There is no way u can use DDR667 in DDR400 slots...

DDR400 falls under DDR1 [There are DDR400 for DDR2, but it's not used in large quantity]

The only way for you to use that DDR667 is to upgrade u're motherboard...

Thanks, Shawty.

Are there any alternatives for me if I want to put in RAM that can overclock well (to about 245/490) without changing my mobo?

Thanks.

Tell me the name and the size of you're ram, and the model number of you're motherboard...

RAM: Kingston Value Ram
Size: 2x1Gb DDR400
Mobo model: Asus A8N-E

TCCD can do ddr500 without sweat, too bad they don come in 1GB module, only available in 512MB.

kinda hard for asus to do ddr600 or above with ya current mobo, premium boards like 32sli will cost u a bomb...

Darn,

I'd really like to not have to change the mobo. Also, as long as it can do DDR500, I'd be more than happy. , so no need DDR600.

Any other alternatives other than TCCD then?

Thanks.

i think can b said impossible 2 oc ddr400 2 ddr500 wif a value ram

This post has been edited by nckent: Nov 22 2006, 04:33 PM

If you want 2x1GB that could overclock to at least DDR500, I think Micron -5B or Samsung UCCC based ram is your only choice.

ce-6 oso, correct me if i'm wrong bro...

Sorry guys. Which ones are those?

I only see Kingston HyperX and Corsair XMS (3200 Pro LED and 3200C2PT) under high-performance RAM.

Are those ok?

Thanks.

Who told you that?
I've overclock my Kingston Valueram to a speed of 533MHz before...

It's not even using those high end chipset such as BH-5, TCCD or anything else...

It's a normal Kingston chips..

Where is my old cpu-z screenies hmm...
Wait, i'll look for it first, then post it here...

@TS
DDR500 will suit you in your Asus A8N-E...

i used to have 2x512MB Samsung UCCC and managed to get DDR500@3448@2.8vDIMM. TCCD available in DDR500, DDR550 and DDR600 , i did test on my Asus A8N-SLI Premium not too long ago, and found, it can't do DDR600 (using Corsair Titanium series)...

Lucifah just told me that his Kingston Value Ram is running at 295.

And that I need to not run it in dual channel mode (and of course increase the voltage) . . . hmmm, maybe I'll try that first.

If I don't have to change anything, that'll be better.

kingston chips are good chips lar... and kingston chips are more exp than advance modules chips or any other cap palang chips... u might not see the diff cuz retail same price... so if u buy advance module chip u rugi la...

Kingston don't have chip, they just relabled it with their name, the chip like Samsung (TCCD , TCCC, UCCC), Winbond (BH-5 , CH-5), Infineon, Mosel Vitelic...details you can go to Hardware section and click at pinned thread -- RAM's Handbook

This post has been edited by sniper69: Nov 24 2006, 02:14 PM

since K7 time KVR can achive 250MHz
KVR @ 250

@TS..have u played with the divider thingy??maybe u can lower the ram speed

This post has been edited by sjn hassan: Nov 24 2006, 02:59 PM

Simple. If your RAM can't support high speed and you don't want to upgrade your RAM, use memory divider. This will run your RAM async to your FSB. Please note that there will be some performance hit but if you use AMD64 , the hit is quite low as the memory controller is in the processor. You might lose only around 100Mhz speed if you run 4:5 so if you can overclock more than 200Mhz compare to the memory contraint, you should get positive gain.

hmm... funny... sorry for my mistake... it's juz base on my boss supplier pricelist... cuz advance module and other unknown brand chips are usually cheaper... But Hynix and Samsung chips are very very rare in Value line... almost non-existant...

Ok, will have to look into the memory divider. I'm assuming that the OC sticky will have articles on this. Have to do quite a bit of reading up first.

Also, my mobo isn't really an OC friendly board, so I'll have to check and see if I can actually mess around with the divider - last I checked, it lacked certain functions for me to tweak.

Thanks for the direction.

if you dun wanna spend any cash, then use divider. A64 performance and stability are relatively not affected by putting a divider (forgot where's the source). u are using amd proc rite? ok... first determine if you really need 2gb of ram. if you dun need, then just go tccd 512x2. alternative will be bh-5 512x2 coz it can do really tight timings up to 1.5-2-2-5.

if you need 2gb ram and you dun wanna change board, then personally i prefer uccc. but they have a problem of higher latency. the lower the latency, the more expensive

lastly if you are willing to change board, u can get a dfi crossfire or something that can run 512x4 at 1T. put in tccd or bh-5 there.

and bear in mind, some nice and cheap KVR can oc really high as stated earlier.

Hi Joylay,

I'm now trying to get a decent OC without changing anything. So I'm going to try with my current RAM first (and I need 2Gb).

Update:

The divider route seems to be working out. Although I'm trying to get the speeds I want without lowering the RAM speeds too much.

Still testing, but seems to be pretty stable right now at 270x9, and RAM lowered to 333/166, and HT at 3x.

I'm pretty much stuck with this speed for now as my BIOS only allows me to go 333, then 266 for RAM speeds. And once I put it to 266 (133), everything goes really funny - like I can't launch Firefox, errors on programs etc. At 333, my RAM speed is already running at 221/442 at current 270x9. Even bumping it up to 275x9 gives me the blue screen of death when I tax the system.

I'm not too sure if loosening the RAM timings some more would help me squeeze more mhz out of them, but more importantly, I'm wondering if loosening it too much would actually negate the performance improvements.

It also seems like such a waste to lower the Ht to 3x and yet not use it to the full 1000Mhz. I mean, now its like only 810mhz.

Theoretically, I should be able to go 334x9 (3Ghz) at HT 3x with RAM set to 133/266. LOL.

Any further thoughts on squeezing that last bit of performance out of them without buying anything new? I'm ALWAYS running at 100% for both cores (even with this new speed), and RAM usage is like around the 1.4-1.8Gb mark.

p.s. DOH. Silly me thought I had KVR, but what I had was actually Corsair Value Rams. Apologies for the wrong info.

Oh, one more thing:

At some point I'm going to want to add in another 1Gb (don't want 4 as I'd lose close to a Gb to PCI), so I'm wondering if I'd get any sort of a performance penalty by not mounting them in pairs? Is that even possible? Or do I have to go 2x1Gb and 2x512?

I'm now running them as single channel, as suggested by Lucifah.

Thanks.

the HT no problem one, u put 1x or 5x also no difference in performance. not worth it running single channel woh... quite significant performance difference.

last time my mobo gave problem with 7/10 divider. but now dunno why i put 7/10 no problem liao.

if your ram can do 270 i suggest u keep it coz even my ocz performance ram is barely stable at 270 3-4-3-8.

Hmm, you sure about the HT speed not having an effect on the performance?

About the single channel thing - maybe I'll try again with dual channel config on current speeds and see how it is then . . . *cross fingers*

I think you misunderstood about my RAM speed la. I meant my CPU is running at 270x9. My RAM is running at 333/166.

If it was running at 270, I'd be as happy as . . . ummm, I dunno what. LOL.

ya... google bout the HT and see.. read it last time. try dfi-street. and i personally tried this out before. i put at stock speed, HT x5, and HT x2, ran benchmark of sandra and superPI, all came out identical.

haha ya i think i misunderstood u

divider and HT does not have much effects on the benchmark or real world application, i did what joylay does too.........no difference

loosen the ram timing however does affect the stability or performance, it's hard to perdict for this case........ u need to do it by trial and error to find ur best combo........

i just upgrade my rams too......... but still havent found time yet to play around with the settings yet........

Thanks for the input guys.

Now tried it out in dual channel again and it seems to work fine. Haven't tried the acid test and tax the computer yet though . . .

Just watch how far you increase the voltages man...,keep pushin it and before long you'll be ramless.....