HT link speed for 7750

March 19, 2009 at 06:28:07
Specs: Windows XP
Hello,
I just bought M2N68 MB and Athlon 7750 BE. Everything goes fine with just one exception,the HT speed. CPU-Z says my HT link speed is 1000Mhz and for this CPU it should be 1800Mhz. Obviously the problem is that the multiplier for HT is set to 5 instead of 9(or at least I think so). But I can't find any way how to change it in bios (I flashed to latest version and still nothing). Can anyone tell me how to set the HT multiplier on the correct value please???

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#1
March 19, 2009 at 12:01:06
Your CPU may support 1800MHz HT but your board does not. Check the specs...it's based on an older chipset that only supports HT 1.0 @ 1000MHz.

http://www.newegg.com/Product/Produ...


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#2
March 19, 2009 at 12:29:13
OK,but they it says,that the MB has 2000 Mhz Hyper Transport technology or am I getting it wrong?
And I have just M2N68, the article is about the AM version with integrated GC if there is some difference...

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#3
March 19, 2009 at 14:01:48
You need to read up on HyperTransport. The HT bus is double data rated, just like RAM. 2000MHz is the theoretical speed...the actual speed is 1000MHz.

EDIT: OK, I deleted out what I wrote earlier. I managed to find your board's manual. It may not have integrated graphics like the one I posted above, but it's still based on the same NVIDIA nForce 630a chipset which only supports up to 1000MHz HT aka 2000MHz DDR aka 2000MT/s. You probably should have gotten a more modern board.


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Related Solutions

#4
March 19, 2009 at 23:11:46
OK, I get it now. Thank you,I will find some more modern board.

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#5
March 20, 2009 at 00:56:06
Look for a board based on the AMD 780G chipset...very affordable.

http://www.newegg.com/Product/Produ...

Get DDR2 1066 memory if you don't already have it.

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#6
March 20, 2009 at 02:38:38
All right and how about this one:

http://www.newegg.com/Product/Produ...

will it be OK? Because I found it in a store near by...



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#7
March 20, 2009 at 05:20:56
The 780G is a great chipset but if you have no intentions of using the integrated graphics or hybrid crossfire, a board based on the 770 may be a better choice.

http://www.newegg.com/Product/Produ...


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#8
March 20, 2009 at 10:46:27
jam makes a good point here. You might check locally for a board with the AMD 770 chipset that accepts DDR2 1066 memory.

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#9
March 20, 2009 at 11:26:22
One other point...if you decide to go for a board based on the 770, check which southbridge chip it's paired up with. The SB700 is better than the SB600.

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#10
March 20, 2009 at 14:58:20
Yeah, and it would help if we knew the main use of the machine...gaming, video production, htpc, etc.

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#11
March 21, 2009 at 00:12:30
It's for gaming,of course.=)
Guys,thank you very much, you've helped me a lot! I will go for GA-MA780G-UD3H because I might wanna try crossfire in the future and the price difference is quite small. I will consider buying the 1066Mhz RAM...how much better performance could I expect? (for 2Gb,I use XP).

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#12
March 21, 2009 at 06:59:31
"I might wanna try crossfire in the future and the price difference is quite small"

That board doesn't support crossfire...it supports "hybrid crossfire" which is something totally different. With a true crossfire board, there's two PCI-e slots for teaming up two video cards. Hybrid crossfire is a way of teaming up the onboard video with a PCI-e video card. I could be wrong but I believe the Radeon 3400 series is the only card that can be used for the hybrid setup. If you're a gamer, hybrid is NOT the way to go.


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#13
March 21, 2009 at 10:29:22
That's correct. Typically, you might use the hybrid crossfire feature with a $20 HD3450 video card. Cheap solution for older games, but not for modern gaming.

New games would require a modern high end video card and the hybrid crossfire of the 780G chipset would be wasted.

Read this entire article for an idea of best choices in video card(s)...you'll get an idea of which way to go with the money you have to spend.

http://www.tomshardware.com/reviews...

Keep in mind a psu with a fat +12v rail (neighborhood of 50a) needed to run high performance video cards can cost 70-120 bucks.

All depends on how much money you want to spend. It's easy to spend $1200-1500 or more on video cards and a suitable power supply. IMO, a real waste of money just to play a game.

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#14
March 25, 2009 at 11:50:17
OK,so after all I got the 780G UD3H,because amazingly,in one shop near by it was for lower price than the 770 chipset MB.Everything is runnig great now. I have another dilemma. If i put 2x2GB 1066Mhz RAM in yellow sockets and 1x2GB 800 Mhz RAM in brown socket,will yellow really run on 1066 or it will be limited by the 800 in brown? And will yellow be dual channel and brown single or whole system single?

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#15
March 25, 2009 at 22:35:42
it's a dual channel socket in both slots but by putting in DDR2 800 all of your ram is now limited to DDR2 800, but it's not a big deal with that processor.

Iron Sharpens Iron.


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