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Post by Mr.Scott on Mar 10, 2021 20:12:57 GMT -5
Been playing around with this board lately.
Couple things I notice. Board is totally optimized for TCCD ram and nothing else.
Board only has 1 bios ever made that allows half multi's on Opteron processors, and it ain't the one everybody else modded.
Big Toe's bios sucks BTW. I can do way better than that.
Need to make this more for my personal benching style. I will mod that bios for BH-5 optimization.
Wish me luck.
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Post by cbjaust on Mar 10, 2021 21:14:45 GMT -5
good luck. let us know how it goes. I have one too.
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Post by Macsbeach98 on Mar 11, 2021 1:12:25 GMT -5
Interesting is it the same board as the venus?
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Post by cbjaust on Mar 11, 2021 2:06:43 GMT -5
I think the venus is the same layout as the Expert with some very slight defferences but the venus has all solid capacitors whereas the Expert has some normal caps as well as solid ones. ![]() ![]()
Expert:
Venus:
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Post by ShrimpBrime on Mar 11, 2021 14:05:14 GMT -5
Damn board would only post with my XMS kit. Its picky for sure. Gotta set up for BH5 and then hot swap the kit, it should run the BH5 then.
At least with the bios that was on the board when I shipped it.
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Post by Bones on Mar 11, 2021 14:34:10 GMT -5
Don't forget guys DFI's can be peculiar with what sticks you run in them, from not booting at all to just being a straightup ass about it.
I've had sticks to work but not clock that well in mine and it's also BIOS related.
Scotty, I'd be happy to grab a copy of the BIOS in my Expert if you need it.
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Post by Mr.Scott on Mar 11, 2021 16:41:07 GMT -5
I have all the known bios's. Thanks anyway Hotrod.  Jon, had no issue booting and running BH-5, it's just not as fast as my Ultra D. The board itself screams FSB wise, it's totally a ram optimization thing. After bios it tested, I will send it to who ever on the team wants to check it out. Chris is correct. Only difference between the Expert and Venus is solid caps....and the box. They use the same bios. |
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Post by dr4g00n on Mar 11, 2021 17:02:50 GMT -5
The board is definitely picky with mems, my kit's of UTT & CH-5 run like crap but I had a set of BH-6 that ran perfectly fine. TCCD/5 work perfect as you'd expect. Other types of mems are a crap shoot. I once tried running 4x1GB Hynix D43 in it and it was a really fun experience.
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Post by Ashley98 on Mar 11, 2021 17:09:55 GMT -5
Need to get me an Expert one day they sell for silly prices now tho. one i was looking at sold for £265
till then got 2 boxed Ultra D LP
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Post by Mr.Scott on Mar 12, 2021 18:24:24 GMT -5
The board is definitely picky with mems, my kit's of UTT & CH-5 run like crap but I had a set of BH-6 that ran perfectly fine. TCCD/5 work perfect as you'd expect. Other types of mems are a crap shoot. I once tried running 4x1GB Hynix D43 in it and it was a really fun experience. My intention is to remedy that.  |
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Post by Mr.Scott on Mar 20, 2021 9:38:06 GMT -5
Bios is done. Checksums match also. Need to load it on the board and test. Pretty aggressive, will need decent BH-5 to take advantage of this. Might have to tone it down a little. We'll see.
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Post by Bones on Mar 20, 2021 9:53:19 GMT -5
Bios is done. Checksums match also. Need to load it on the board and test. Pretty aggressive, will need decent BH-5 to take advantage of this. Might have to tone it down a little. We'll see. I'd be glad to test it as is myself and I do have those unbinned OCZ Gold BH5 sticks, rated for 3.2v's stock. |
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Post by Mr.Scott on Mar 20, 2021 10:00:07 GMT -5
Bios is done. Checksums match also. Need to load it on the board and test. Pretty aggressive, will need decent BH-5 to take advantage of this. Might have to tone it down a little. We'll see. I'd be glad to test it as is myself and I do have those unbinned OCZ Gold BH5 sticks, rated for 3.2v's stock. No doubt. Soon as I'm sure it posts, I'll link it. |
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Post by Bones on Mar 20, 2021 10:03:00 GMT -5
I'm looking foward to it!
BTW if it's good you can try it with the Psycho-Opty, it has a pretty good IMC.
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Post by Mr.Scott on Mar 20, 2021 10:14:19 GMT -5
Played with that chip a couple times now. It's fucking amazing.
I only use it when I need it because I don't want to kill it.
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Post by Mr.Scott on Mar 21, 2021 12:00:12 GMT -5
Boots and runs. Any teamie that wants to try this and gimme some feedback, just shoot me a message. |
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Post by ShrimpBrime on Mar 21, 2021 13:33:53 GMT -5
Well... I'd be keen to see some screen shots once you have it tweaked out. |
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Post by zila1 on Mar 21, 2021 15:16:41 GMT -5
Wow, that sounds awesome.
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Post by zila1 on Mar 22, 2021 0:58:51 GMT -5
Been playing around with this board lately. Couple things I notice. Board is totally optimized for TCCD ram and nothing else. Board only has 1 bios ever made that allows half multi's on Opteron processors, and it ain't the one everybody else modded. Big Toe's bios sucks BTW. I can do way better than that. Need to make this more for my personal benching style. I will mod that bios for BH-5 optimization. Wish me luck. Honestly I always thought all the Big Toe Bios's sucked.  |
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Post by Mr.Scott on Mar 22, 2021 15:39:26 GMT -5
I always thought they were lame too. |
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Post by Mr.Scott on Mar 22, 2021 15:40:22 GMT -5
My bios also gives you the half multi's on Opteron's back.
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Post by ShrimpBrime on Mar 22, 2021 16:01:29 GMT -5
My bios also gives you the half multi's on Opteron's back. I should have sent this board to you years ago..... lol. Nice job with the mod Scott. You the man! |
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Post by antinomy on Mar 27, 2021 1:13:18 GMT -5
it has a pretty good IMC. BTW, could someone enlighten me about the IMC thing on 939 CPUs (how it's different from core clocks) and how are 0.5x multis involved in this? I remember knopflerbruce speaking of this but don't remember the details. |
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Post by cbjaust on Mar 27, 2021 6:01:20 GMT -5
Pretty sure the IMC rounds at core frequency. The Dram on the other hand runs on a divider which gets rounded up when you're on the half multis.
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Post by Mr.Scott on Mar 27, 2021 8:08:26 GMT -5
It actually gets rounded down on the half multi's.
But sometimes you need those half multi's to keep your ram speed up in the divider you want.
Certain cores prefer certain dividers over others.
That's what makes 939 fun. Trying to find that perfect balance point of CPU MHz and maximum memory speed and timings.
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Post by Bones on Mar 27, 2021 8:44:31 GMT -5
I've noted some divider options are hidden with certain multi's, with others you have them.
Makes it fun to try and get the speed you want while maintaining the availability of the entire divider set for max tweaking.
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Post by antinomy on Mar 27, 2021 18:22:07 GMT -5
Thanks guys, now I get the general idea. I'll get there someday.
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Post by ShrimpBrime on Mar 27, 2021 22:06:54 GMT -5
Bones May I ask for your services?? Have an old board here that needs a face lift. Willing to do it myself with your guidance, *But would actually prefer sending it to you instead! I don't think this is something I can accomplish in an evening. As you can see the board needs a DEEP cleaning. It was used with sub zero before I ever got it. Then I did some action with it. Was a bit unstable last time. Pulled it out because of this thread, And saw some bulging caps. The last runs probably did them in. It's a working board that I'm willing to put some time/money into. Can you help me out? 
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Post by cbjaust on Mar 27, 2021 22:30:43 GMT -5
It actually gets rounded down on the half multi's. But sometimes you need those half multi's to keep your ram speed up in the divider you want. Certain cores prefer certain dividers over others. That's what makes 939 fun. Trying to find that perfect balance point of CPU MHz and maximum memory speed and timings. I think we're saying the same thing from opposite sides.
For example, let's say the bus speed is 200MHz, CPU multiplier is x10 and 200MHz for the memory (actually memory divider = CPU multi x 1.0 = 10) for 2000MHz CPU / 200MHz Memory.
Now if we stay at 200MHz bus speed but go up to 10.5 for the CPU multiplier and stay also on 200MHz (mem divider = 10.5 x 1.0 but it has to be a whole number and it can't result in a memory frequency greater than 200MHz so the result is rounded up to 11) resulting in CPU at 2100MHz and memory at 190.9MHz.
That's my understanding of how it works.
Now when you get to the other memory dividers, it's not exactly as it's labelled in the BIOS, especially the in between ones DFI has. (DFI's "183MHz" for example is actually 181.8 MHz at CPU multi 10 and bus speed 200MHz because the memory divider is 10 x 1.1 = 11 in that case)
Cheers
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Post by Bones on Mar 28, 2021 4:15:29 GMT -5
Bones May I ask for your services?? Have an old board here that needs a face lift. Willing to do it myself with your guidance, *But would actually prefer sending it to you instead! I don't think this is something I can accomplish in an evening. As you can see the board needs a DEEP cleaning. It was used with sub zero before I ever got it. Then I did some action with it. Was a bit unstable last time. Pulled it out because of this thread, And saw some bulging caps. The last runs probably did them in. It's a working board that I'm willing to put some time/money into. Can you help me out? View Attachment You should be able to take care of it with ease. All I'd do is remove the chipset cooler and CPU cooler collar and pop it into the diswasher on high-temp wash with a standard Cascade dishwashing pod. You can use the heavy duty cycle if you want or just set it for pots and pans. No need to let the washer dry it too but do make sure it gets the "Good" rinse cycle. Once done, take it out and prop it up so the water drains from it for at least overnight. Then you can bake it for about 2 hours in the oven, set for about 170f or just anything that would be less than 90c period. Let it get to temp and once you cutoff the oven don't take it right out, let it cool as the oven itself does. You can even figure in how long after it's cut off you can leave it in and save a little power, I'd have to say at least 90 to 110 minutes in you can cut it off and let the residual heat take it the rest of the way. OR..... Let it sit for a couple of days so water can drain from it and place a small fan on it during this time, at least overnight to make sure it's dried out but won't hurt to let it go for about 48 hours with the fan. Once done in either case, you can then just recap the board where needed and test. |
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