Overclocking with AMD's

Shlouski

Shlouski

VIP Member
I building another budget system, but ive only ever overclocked with intel cpu's. Most 775 mobo's can do 1333 native, which as you know means you can overclock a 800 FSB cpu and hit the cpu's max before even overclocking the mobo. Now would I be right is saying AMD's FSB is called MT/s, so an Athlon II X2 240 with 4000 MT/s can be overclocked to 5200 MT/s without overclocking the motherboard, if its max is 5200 MT/s?
 
Instead of a FSB, AMD uses Hypertransport . If its a AM2+/3 board, they support up to 3600/5200mhz. HT. The processor itself, the 240 only support up to 2000/4000mhz. If you use the bus to overclock, thats the base bus of the northbridge (200) and it raises the HT as well. Depending on how good of a board you get they vary on how well the Bus/HT will overclock. Most board have a X for the HT to keep it closer to spec. Plus you can bump up the N/B voltage a little to get more bus speed out of the N/B.

Its not the HT of the board that you have to worried about, its what HT speed your forcing the processor to run at and the northbridge base bus.
 
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Overclocking the ht link on an amd system hurts performance in most apps. Best to set it around 2000mhz and work on the other stuff ;)
 
well this mobo is the one im thinking of getting http://www.asus.com/product.aspx?P_ID=vhi75jnBeZVzizh0 (max 5200 MT/s), so is MT/s actually the Hypertransport? Also ive changed my mind to this cpu, Phenom II X4 955. I understand that the problem is getting the cpu to run at over 4000 HT, but if i dont go past 5200HT, the mobo's max i wont being stressing the NB and should not have cooling issues?
 
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This is completely different to 775 clocking, don't worry at all about the ht link, you can just lower the divider to leave it as close to 2ghz as you can because it will hurt both performance and stability.

Anyway as for your board choice, where are you buying from because that board is far from the best 785 motherboard, in fact it's one of the worst..It is severally fsb limited and has trouble with high wattage chips such as the 955. Let me know where to shop from and I'll find you a better one ;)
 
Getting the 955 you really dont have to worry about it. Its unlocked, just use the multiplier. And like said, overclocking the HT isnt really going to get you anything.

Unless you need the onboard video. Since your talking about overclocking I would get a 770 or 790 chipset with a 10 phase power setup.
 
StrangleHold said:
Getting the 955 you really dont have to worry about it. Its unlocked, just use the multiplier. And like said, overclocking the HT isnt really going to get you anything.

Unless you need the onboard video. Since your talking about overclocking I would get a 770 or 790 chipset with a 10 phase power setup.
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:rolleyes: No
 
Are all the 955 BE's? Though i still want to learn how to do it with the fsb. I think maybe i will figure it out when im in the bios, because at the moment im confused, seems much more complicated than Intel lol.
 
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StrangleHold said:
Getting the 955 you really dont have to worry about it. Its unlocked, just use the multiplier. And like said, overclocking the HT isnt really going to get you anything.

Unless you need the onboard video. Since your talking about overclocking I would get a 770 or 790 chipset with a 10 phase power setup.
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StrangleHold said:
What!
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NO :rolleyes:

You can get 785 boards that oc far better than 770 boards and some that clock better than most 790x/gx/fx boards and I presume he wants matx since he is after an matx asus 785. I just want to point him in the right direction ;)

Yes all 955's are unlocked, retail anyway.
 
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I buy all my parts from a spanish computer distributor, because i own my own business i got i an account, so get everything trade price, so i buy from them.
 
El Gappo said:
NO :rolleyes:

You can get 785 boards that oc far better than 770 boards and some that clock better than most 790x/gx/fx boards and I presume he wants matx since he is after an matx asus 785. I just want to point him in the right direction ;)

Yes all 955's are unlocked, retail anyway.
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Thats so stupid I'm not even going to argue about it. Sure (some) 785 clock ok (Asus) makes a ok one, the V EVO but (most) of them are pieces of onboard video junk. If you want a stable board get a good 770 or a 790 with a 8/2 phase setup with low RDS on mosfets.
 
Will this mobo just OC a bit? I like its audio features and remote. I will be putting an 8800gt in it, so im not bothered about onboard graphics.
 
StrangleHold said:
Thats so stupid I'm not even going to argue about it. Sure (some) 785 clock ok (Asus) makes a ok one, the V EVO but (most) of them are pieces of onboard video junk. If you want a stable board get a good 770 or a 790 with a 8/2 phase setup with low RDS on mosfets.
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That's so stupid I am going to comment on it ;) That evo board is terrible, I've put about 30 systems together this week using that board and it's horrible to work with. I'm thinking a biostar 785 128m which is an incredible piece of budget overclocking hardware with a brilliant bios ( the guy who used to make the dfi bios's recently jumped ship and we all know how in depth those are. ) and overclocks on a par with the fxtud5p especially with locked chips, athlons etc. The fact it has on board video doesn't detract from stability in the slightest.

And what 8/2 phase 770 board are you thinking of exactly?

The gd70 has how many phases?

Don't call me stupid when you clearly have no clue pal.



The motherboard will OC decently but you can get far better for you're money. Like this one http://www.biostar.com.tw/app/en/t-series/content.php?S_ID=432
 
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Due to low demand of computer parts out here (spanish island of the cost of africa), they only supply asus, gigabyte and very few asrock motherboards, but im not buy an asrock lol.
 
First the GD70 is not a 785, its a 790FX.

And that Biostar, you got to be kidding. What a 4 phase setup. most of the caps. are old liquid filled caps. 10 old style mosfets. Yes I'll say (cheap)

770 with a 10 phase Gigabyte GA MA770T UD3P or the GA 770TA UD3P, ASUS M4A78 Plus.
 
Shlouski said:
Due to low demand of computer parts out here (spanish island of the cost of africa), they only supply asus, gigabyte and very few asrock motherboards, but im not buy an asrock lol.
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Its only a 5 phase but the Gigabyte GA-MA790GP-UD4H is not a bad board.
 
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