Noob BH-5 (old school) question

[Stigggeh]

got some old school BH-5 (corsair XMS 3500 C2PT V1.1)

got them at 240 with 3.1v, 20 loops of memest (test 5)

but i seem to hit a wall where more voltage produce errors, so would running them with high voltage (say 3.5) at a low speed make them more acceptable to high voltages.

first set of BH-5 too, so in-experienced with this stuff.

using P4c800 and OCZ Booster (BH-5 cooled with the 70mm fan from a CT479).

I aiming for 255 :banana:

[Cossey]

let them run through with errors for a while and the number of errors per time should drop .

[magg]

Not necessarily 3.5V, but maybe 3.2-3.3V. A lot of the newer *H-5 / UTT based RAM seems to enjoy that voltage for pretty good functionality.

How much CFM is that 70mm pushing? I've actually seen big differences on memtest runs with RAM that's adequately cooled versus not cooled at all.

Also, what timings do you have them at? I'm assuming 2-2-2-*, but what about your other values? And what's the rest of the rig?

[iddqd]

Heatspreaders still on?

[Stigggeh]

Not necessarily 3.5V, but maybe 3.2-3.3V. A lot of the newer *H-5 / UTT based RAM seems to enjoy that voltage for pretty good functionality.

How much CFM is that 70mm pushing? I've actually seen big differences on memtest runs with RAM that's adequately cooled versus not cooled at all.

Also, what timings do you have them at? I'm assuming 2-2-2-*, but what about your other values? And what's the rest of the rig?


its old BH5.

not sure on the fan CFM, but the ram feels cold when i touch it. but i have a 70mm 49cfm screamer that i will try later.

timings 2-2-2-5., rest of rig -, I have tried both dothan 730 with low multi & 2.4C, P4C800 E, DDR Booxter, antec TP430, sata 120gb & using an old GF4 MX460 :woot: while testing

nothing else plugged in

yes heat spreaders are on, as i am too chicken to take them off :p:

[[XC] moddolicous]

Let them run for a while @ like 245 or 250 @ 3.3 or 3.4. After a while it should go down. Taking the heatspreader off may also allow u to get about 5 or 10 more mhz out od them.

[masterofpuppets]

You are supposed to get errors when burning in, the phrase "burning in" comes from getting the chips extremely hot. Heatspreaders are counterproductive for thermals, so you will probably want to keep them on while burning in. If you have already burnt in, to gain a couple of MHz, remove those heatspreaders. If they are "clip" ones like OXZ and KHX use, there are two methods, first one and probably easiest, is to get a knife, and EXTREMELY carefully remove the "stick" between the pad and the chip by putting the knife through the pad, do this CAREFULLY. Unless you are stupidly careful, you will put a small scratch in each chip. Then, you "pull" the heatspreaders apart with your fingers (can be painful if you don't have hardened skin) until they are being held on by the clips at the top of the RAM. If you can't pull them right apart, once they are bent open, the clips holding them together should be easier to pull off (those silver things which go over the top) and you can pull the spreaders off. Next method, slightly more difficult (in my opinion) is to get a very thin object like a knife and slide it under the clips on the side of the spreader. Then push them off and pull each heatspreader off. But yeah, back on topic.

BH-5 + voltage = OMG TEH SPEED!

[iddqd]

yes heat spreaders are on, as i am too chicken to take them off :p:
oh god.

[Aleman]

If you give them too much volts, error will appear also (depending on speed. i mean 200mhz at 3.3V is faulty but 250Mhz 3.3V is ok).

[masterofpuppets]

Stop being so nervous and over-careful! I am like that all the time, and it's annoying. Just cut those stupid heatspreaders off. BH-5 likes voltage, but not too much, but you could run BH-5/6 24/7 with 3.8v without killing it for sure.

[Stigggeh]

well the burn in appears to have worked, currently at 250 error free, i will might have ago later at the heatspreaders, might give me the extra 5mhz i am after

anyway.... cheers fella's, i think i am sorted now.