[MemoryReaction] G.Skill F2-8000CL5D-4GBPQ - Low in cost, high in speed!

[Utnorris]

Can someone explain strapping to me please? I looked and I cannot find anything that explains strappings in details and what it does. The reason I ask is that I cannot run these sticks at 1003Mhz with my FSB at 400x9, this is the 400Mhz strap, however if I put them at 1080Mhz with my FSB at 450x8 it runs like a champ, strapping is at 333Mhz. I just cannot grasp the strapping concept and it seems that ram on my MB does not like anything other than 333Mhz strap. I just need an explanation so I can figure out what I am doing wrong.
Thanks,
Utnorris

[euonline]

Nice RAM, I am running 535mhz due to my settings on my E8400. So far rock stable. Great bandwidth.

EnJoY: -Any Ideas on my timmings to reach 565 mhz 24/7 ? I have tryied the TRFC 55 and 2.2v already.

[Utnorris]

Try setting your 3's to 4's and your refresh to 60.
Utnorris

[sirrealist]

I PMed euonline this message, but perhaps some of you can help out too:


"euonline, Do you think you could email me your screenshot? The link just goes to imageshack, and I'd like to look over your timings carefully.

I have an e8400 with an abit IP35-pro mobo (and obv same mem chips). I cannot seem to get the memory stable with anything useful above 450Mhz.

Right now I am running my CPU @ 9*450, and I want to use the 5:6 strap (540Mhz), but I just can't get it stable. I tried setting it to 5-5-5-15-52-2T @ 2.2v, but got 8 errors over an 8hr memtest run. All the subs were set to auto. I'm hoping that by fine tuning my subs (which i have very little exp with), i can get my ram more stable and get a bit more out of it.

If I can get that to go well, then maybe I can try pushing my CPU a bit more (with diff multis as well).

BTW, do you know if MCH voltage affects memory overclock as well (directly), or just whether or not your mobo is stable at your FSB?

What test do you use to test mobo FSB stability? Obv you'd want to set your cpu multi all the way down and your ram at 1:1 for testing, but what program? ORTHOS mix? ORTHOS blend? Something else?

Thank you much for your help!"

Abit IP35 Pro, beta BIOS 17.B4
Intel E8400, 9.0x450 = 4050MHz, 1.33V
G.SKILL 4GBPQ, 2x2GB, 5-5-3-13-2T, 1:1, 900MHz, 2.1v
eVGA 8800GT, 512mb, GPU=763 Shader=1809 MEM=1089, 1.1v
(2x) Samsung 7200.11, 2x500GB, 2x32MB, 7200, RAID0
Samsung 500GB, 8MB, 7200
Seagate 160GB, 8MB, 7200
Sound Blaster Audigy2 ZS
Sennheiser HD-595
Logitech Z-5500 Digital, 505W RMS, 5.1
Antec 900 Case (Modified Cooling), Corsair HX620W

[kpo6969]

Could anyone offer any advice if I should change any settings. I never messed with memory timings, etc. Great ram
E8400 @ 3.6 400FSB
2x2 G.Skill 8000 PQ 1000Mmhz 4:5 (10:8 or 5:4, not sure what it is)
+.03 2.06v
GA-P35-DS3L
only thing I changed is 5-5-5-12 instead of 5-5-5-15
Thank You

[kpo6969]

Any better?

[sirrealist]

Any better?

Much! Keep tightening those timings (and testing with your favorite RAM stability tester).



On another note, anyone have any idea how much voltage is safe to push to these sticks? I'm trying to push my FSB/RAM OC to the limit (have to use 1:1 ratio due to already high FSB for CPU OC), and I'm afraid to go over 2.2v for regular use. Is 2.2v safe, and if so, can I go any higher?

Also, it looks like you guys have higher tREF, but it dosn't seem that I can edit this in my BIOS, and MEMSET doesn't let me change anything!

Right now the highest I can get (using any ratio) is 536 (or DDR2 1072). I'd like, to get to 540 or higher, since I KNOW my E8400 will do 4.05GHz, but I want to see if it'll go any higher.

Right now = 7.5 x 536 = 4.02GHz

Here are the relevant voltages (I haven't tried to get these down at all yet, if possible):
DDR2: 2.2v
DDR2 Ref: +2%
MCH: 1.48v
ICHIO: 1.6v
ICH: 1.09

EnJoy - I'm hoping you especially can help me out regarding RAM & mobo voltages, since you have the abit IP35 Pro as well.

Here is my current OC with timings... I'd like to push this further:

[dragao]

This topic is really excellent....a lot of information super important. Congratulations Enjoy

[EnJoY]

This topic is really excellent....a lot of information super important. Congratulations Enjoy

Why thank you. *takes bow*

[kpo6969]

Does anyone think that these could handle 4-4-4-10 @ 1000mhz?
I'm at 5-5-5-12 @ 1000mhz now.

[EnJoY]

Does anyone think that these could handle 4-4-4-10 @ 1000mhz?

I KNOW they cannot.

[Leeghoofd]

I KNOW they cannot.

I can second that, stuck at 1081Mhz 5-5-5-15 2T on the new P5Q Dlx (was round 1100mhz on the P5K )... peeps expect too much from these big and cheap sticks....