Abit KT7A better than the Abit KT7?

[CrazyDiamond]

Hi, i'm planning on buying a duron 600 or 700... should i buy the abit kt7a or just save my money on the kt7?

Does the kt7a o/c better than the kt7?

 

[loosbrew]

read anands review of the new kt7a...it went upt o 145fsb stable which is a great 45% overclock on the bus. much much better than the 110 max you get with the kt7..im not saying this from experience though, so read the article and decide for yourself.

loosbrew

 

[CrazyDiamond]

Oh wow... so i could theoretically get a 145 bus x 9 multiplier overclock with a duron 600!?

 

[IronHammer]

"Theoretically" is the key word.
As in "this mobo can theoretically go up to 12.5x200"
Don't expect to get 9x145=1300MHz with a Duron... It will probably go up to 7x133=933 or a bit more if you're lucky (depends on your CPU), but not much more...
Anyway, with a price like the Duron's it's a hell of a deal
I think it's not worth it to get a KT7A though, unless you plan to upgrade to something like an Athlon 1400+ when they come out. If you plan on staying with the Duron, get a KT7 and try your luck with the multiplier! (at 100MHz FSB)
Good luck!

 

[CrazyDiamond]

Uh... so with the kt7a i have to use a lower multiplier than with the kt7!?

 

[Phokus]

Anyone know of any reviews where they try to o/c a duron with the kt7a?

 

[CrazyDiamond]

anyone here? Echooo echoooo echooooo

 

[Insane3D]

Not sure about the Duron, but I just put a 1.2ghz/KT7A-RAID together, dropped the multiplier to 9, upped the FSB to 150mhz (300DDR), and now I am running 1350. I can't speak for all of the boards, but my KT7A-RAID is very nice and rock stable...

 

[Phokus]

Hmm, so in otherwords, if you overclock by way of FSB, it'll increase the cpu's heat, just like overclocking using the clock multiplier? So i can only raise one really high and not the other?

 

[CrazyDiamond]

Hmm... looks like not much info is known about it i guess

 

[DaddyG]

Diamonman, any mobo using the KT133A is going to be a better solution. Running a higher FSB with lower multiplier always results in better performance. Whats the trade off ?? you will need better RAM and when you exceed 133, your PCI and AGP bus will be out of spec. Most good graphics cards handle the higher AGP without problems, but some HDDs have issues with OCed PCI.

 

[CrazyDiamond]

But will i be able to raise the multiplier any if i raise the bus speed to the max (i'm talking in the case of a duron 600 or 700 here)?

 

[CrazyDiamond]

ARRGH, someone answer please!

 

[Pederv]

OK, say you have a 700MHz Duron, if you have a KT7A and are running it at 133/266 then to run your Duron at 700MHz you'll have to drop the multiplier down to 5.5 (which will give you 731MHz). Then start increasing the multiplier (6 will give you 800MHz, 7 will give you 931, etc.)

 

[CrazyDiamond]

Hehe, what i meant was, if i, for example, get a duron 700 and an Abit kt7a, and max out the fsb @ 145, would i be able to up the multipler to like 9 like i would with the regular abit kt7?

 

[bupkus]

Ok, usually I don't answer these questions because I still feel new to overclocking, but I'll put my foot in it.

With an FSB of 145, you would multiply that by the multiplier to get your cpu clock speed. Thus, your clock speed is set by both the FSB and it's multiplier.

Example 1: 145MHz x 6 = 870MHz; 145 x 7 = 1015MHz;
If you want to set your cpu limit at about 1GHz, divide 1000MHz by your FSB speed.
Example 2: 1000MHz / 145MHz = 6.9 multiplier or about 7 as above in example 1.

With Abit's KT7 most people have posted an FSB limit of about 110 MHz.
With that 1000MHz/110MHz=9 multiplier

9 x 100MHz = 900MHz
9 x 145MHz = 1305MHz Good luck.

 

[CrazyDiamond]

Arrrghhh, i know the math for that... i'm wondering if it will be possible to do a 9 x 145MHz overclock with an abit kt7a and duron 700??

Another thing, does overclocking the fsb heat up the CPU only, or the chipset, or both? And also overclocking by using the multiplier?

 

[PieDerro]

Mate, it's possible for the KT7A to do 12.5 x 150 if it is a good board. But your Duron will be lucky to hit 7x133.

 

[Technonut]

A quick and to the point answer, there is no guarantee to overclocking. If you get a good 700 Duron, it may be possible to run it at an 145 FSB on the KT7A, but probably not with the multiplier at 900. at 7 or 7.5, maybe. I have to underclock my 1100 to 800 to run at an 146 FSB.

You may even be able to get a 150 FSB, which would give your processor a great DDR of 300MHz, if your RAM could handle 150MHz. The performance in either case with the KT7A, would be better than what you would get on the KT7.