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Reef Shark
Memory bandwith help
Howdy-
I have downloaded Sisoft Sandra, and checked my memory bandwith for the rig in my sig below. It registers at about 1920 MB/s. In the bios, I have the DRAM settings on turbo. This seems pretty low to me, especially when compared with a sandra's reference KT333 board with 3200 ram (over 3000 MB/s)
One thing thats weird is that Sandra detects my board to be the KT266a. Anything I can do with that?
When I upped my FSB to 140, the bandwith improved to about 2050 MB/s
Any advice guys?
AMD x2 [email protected], DFI NF4 ultra D, Zalman 7700cu, 2gb OCZ Platinum 3200, 1WD 80gig (8mb), 2x Maxtor 300gb (16mb), Albatron 6600, Turtle Beach Santa Cruz, MH 505's, NEC 3540a, Enermax 2.0 470watt, MAG 15in LCD, XP Pro
the Way, the Truth, the Life and apologetics
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Folding Team Member
That sounds about right frankly. Yeah Sandra reports all KT333's as KT266a. We'll just have to wait for the next release to fix it. Bandwdith scores are related to FSB. You got 1920 with 133 and 2050 with 140. If you were able to run a 166FSB your scores would be more like 2400-2500. Also running with a single dimm vs two usually will raise scores. Also look again at the scores. For ddr ram you're fine. Its rdram which scores so highly.
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Reef Shark
You obviously aren't running your memory at 400mhz. I get low scores for DDR400(~2945 MB/s) and thats with an asus p4s533 and the ram is buyaib.com ********. I get ~2502 Mb/s@333mhz. Set your dividers and such.
The Hurricane:
Lian-Li Pc-60U(new one with 2 usb 2.0 ports in front and sliding mobo tray)
Asus P4S533
TTGI 520watt PS with 3 80mm ball-bearing fans(Voltage potentiameter modded.)
[email protected](160/40mobo was at 166/42 but needed memory speed), modest Vcore of 1.575)and cooled by Alpha PAL8492T with AS3/vantec tornado 80mm(fullspeed) (cpu/mb load= 32C/29C)
512mb samsung ddr400 w/ aluminum heat spreader(now at 2-3-4-6-2)(4:5 divider)(2.7VDDR for stability)
on board primary:
plextor 40/12/40A
pioneer dvd tray loader
PCI promise tx2 IDE controller:
2 maxtor 60GB 7200rpm drives
DEAD secondary onboard IDE?
Soundblaster audigy platinum
Leadtek winfast a250 ultra TD ti 4600@(326/770 and still stock cooling and voltage LMAO)
sony 19 inch trinitron HMD-A440
Samsung floppy (LOL)
Klipsch promedia 5.1 (500watts!!!!!)
Logitech twin optical mouse(two optical sensors for bragging rights)
micro$oft internet keyboard
3dmark2k1 build 330 stats 13738 hehehehe
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Reef Shark
I have scoured the bios for the 8k5a2, but I have found no area that mentions you can change the memory divider. It seems like the pentium IV mobos all have options like that, but no mention in my mobo manual either. Can anyone help?
AMD x2 [email protected], DFI NF4 ultra D, Zalman 7700cu, 2gb OCZ Platinum 3200, 1WD 80gig (8mb), 2x Maxtor 300gb (16mb), Albatron 6600, Turtle Beach Santa Cruz, MH 505's, NEC 3540a, Enermax 2.0 470watt, MAG 15in LCD, XP Pro
the Way, the Truth, the Life and apologetics
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Reef Shark
I know the 8kha+ had 4/5 mem divider, but that was with a beta bios, if i recall correctly... Anyway, I got that kind of bandwidth with my duron @ like 155 fsb! Geezorz!!
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Folding Team Member
Originally posted by mealeyma
I have scoured the bios for the 8k5a2, but I have found no area that mentions you can change the memory divider. It seems like the pentium IV mobos all have options like that, but no mention in my mobo manual either. Can anyone help?
There are no adjustable dividers on your mobo. They kick in automatically at 133 and then again at 166. Tbred wasn't answering your question or addressing your issues; just making comments of his own
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Gibson Les Paul Shark
The reason you arent getting as much bandwith as you should is because the processor bus is at 133 or 140 or whatever you have it set at and the DDR bandwith is at 190 or 200 (380 or 400Mhz). For your processor to fully use the bandwith is to get the processor bus synchronus with each other. Unlock it and crank that FSB 
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Reef Shark
Great info guys - I sure appreciate it! Everythings is much clearer now. I think it's time to unlock that sucker!
AMD x2 [email protected], DFI NF4 ultra D, Zalman 7700cu, 2gb OCZ Platinum 3200, 1WD 80gig (8mb), 2x Maxtor 300gb (16mb), Albatron 6600, Turtle Beach Santa Cruz, MH 505's, NEC 3540a, Enermax 2.0 470watt, MAG 15in LCD, XP Pro
the Way, the Truth, the Life and apologetics
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Folding Team Member
Originally posted by mealeyma
Great info guys - I sure appreciate it! Everythings is much clearer now. I think it's time to unlock that sucker!
Unlocking's a good idea. With that mobo I'd be nice to shot for that magical 166FSB IMO. Then all your agp and pci cards fall back into spec. Unlocking can be challenging. Be patient with it
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