Dual Channel won't work
Hey guys, tis me again
Basically my RAM won't overclock while in dual channel mode, and it's supposed to. The RAM modules I have are Kingston HyperX 2GB PC2 8500 CL5 240 pin DiMM Kit (2 pcs) or KHX8500D2k2/2GN. Its stock is 800MHz but was sold with the promise of 1066MHz overclockability. The RAM doesnt seem to be dodgy; CPU-Z is showing the norms as far as I can tell and is reading both modules with no problem.
When the RAM is run in single channel I can reach 1066 no problem apparently single channel aint no gud fer bandwidth. The board I've got is a DFI LanParty P45-T2RS Plus and clearly states on the box it supports 1066MHz and up to 1200Mhz OC'd. When I try to overclock in dual channel mode, above about 900Mhz (Not too stable, but usable) I get crashes at/before the POST or when I try to do anything on bootup.
Let me know what more information you need and I'll be happy to supply.
Thanks again Icrontic!
Basically my RAM won't overclock while in dual channel mode, and it's supposed to. The RAM modules I have are Kingston HyperX 2GB PC2 8500 CL5 240 pin DiMM Kit (2 pcs) or KHX8500D2k2/2GN. Its stock is 800MHz but was sold with the promise of 1066MHz overclockability. The RAM doesnt seem to be dodgy; CPU-Z is showing the norms as far as I can tell and is reading both modules with no problem.
When the RAM is run in single channel I can reach 1066 no problem apparently single channel aint no gud fer bandwidth. The board I've got is a DFI LanParty P45-T2RS Plus and clearly states on the box it supports 1066MHz and up to 1200Mhz OC'd. When I try to overclock in dual channel mode, above about 900Mhz (Not too stable, but usable) I get crashes at/before the POST or when I try to do anything on bootup.
Let me know what more information you need and I'll be happy to supply.
Thanks again Icrontic!
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Comments
What FSB, what ram divider are you starting with?
Multiplier x 8.0
Bus speed 425 Mhz
Rated FSB 1700MHz
DRAM Frequency 510Mhz
FSB:DRAM 5:6
CL : 5.0 clocks
tRCD: 5 clocks
tRP: 5 clocks
rRAS 18 clocks
CR: 2T
I think that's what you meant- I'm still learning overclocking
No.. that voltage is not what is set in the bios.. what do you have set there?
The problem is that I cant do that in dual channel mode and as far as I'm aware I'm meant to be able to: currently Im in single channel and if overclock at all I have system instability. When I last checked memtest threw up errors when the RAM was in dual channel mode, but not single channel.
Is this the DK P45 or regular?
Set the FSB to 333, set the ram to 1066.
Put them in Dual Channel and run stock FSB with ram set to 1066. If it runs.. then it is something else causing the issues.
Right.
Tried FSB stock and setting the RAM to 1066 in dual channel; that didnt work. Dual channel doesnt work at all, even at stock with my normal RAM, its just irritatingly unstable. I can overclock decently in single channel, though (1021, perhaps higher).
Dad brought some home spare RAM from work to try and troubleshoot. It runs dual channel no problem up to 1021, after that I get crashes/instability at or during startup. 1065 is the closest I can get to 1066 and its unstable.
Both sets of sticks use the same voltage and timings as stated on Kingston's site. Any ideas?
Original RAM
KHX8500D2/1GN
5-5-5-15
2.2v
Test RAM
KHX8500D2K4/4G
5-5-5-15
2.2v
FSB is currently 425, multiplier 8.
Dunno what other info is needed, just ask if its lacking ^^
Thanks Icrontic, I gotta remember to check back here more often X_X
See if you can find any Clock Skew options for your RAM. Specifically, you're looking to see if you can control the Clock Skew for Channel 2 (or possibly Channel B) only. If you have such an option, set the ram to 1066, and gradually increase Channel B's clock skew. You may hit a point where it works.
I have no idea whether this is actually the problem in your case or not, but it sounds likely from the symptoms.