PDA

View Full Version : Are these sticks BH-5?


Gauss
02-11-2005, 12:05 PM
Hey guys, I have a friend who bought some Corsair xms3500 v1.1 sticks to a guy, well, that's what these sticks seems to be, corsair 3500.

Let's see, I attached a pic, sorry, it's a phone pic. The code in both sticks is:
CMX256A-3500C2PT
XMS3502v1.1
024436

I also attached a cpu-z and everest screenshots. As it can be seen, cpu-z doesn't recognize model in the second module, nor everest, everest didn't even recognize something about the second module. SPD timmings can also be seen in the everest screenshot.

The guy who guy who sold these modules says they are BH-5 but I don't think so. I remember xms3500 with bh-5 chips to have heatspreaders with blue and silver colors, not the classic silver heatspreader. I also owned a pair of corsair twinx sticks xms3200 2-2-2-6 with bh-5/bh-6 chips that when set to 166 MHz, the SPD timmings were of 2-2-2-4. These "BH-5" sticks have SPD timmings of 2-4-3-7 when set to 166 MHz.

The performance of these sticks suck, they are not stable in any way at 200 MHz with 2-2-2-6 not even using 2.7v. Memtest produces errors in an nforce2 board, as well as with an A64.

Something curious, the second module that doesn't have a model recognized by cpu-z doesn't allow the system to boot when used alone, the other stick does allow booting when used alone. Also, the module with model recognized should be used in slot1 in the A64 as well in the nforce2 board in slot3 to make both modules to work.

Also, these modules won't boot at 200 MHz in an A64 (MSI K8N Neo2), they only boot at 166 MHz no matter what (divider set, fsb changed up from 200 MHz). When set to 200 MHz using A64 tweaker the performance suck, Super-Pi give a message error or the systems crash unless very loose timmings are used (2.5-4-4-8 as everest says).

What do you guys think? Are thsese authentic corsair modules? They seem of course, but I think it's not a production with BH-5, maybe it's a production with the first generation of BH-5 that were used for PC2700 memory the first time.

Guys, please answer, the guy who sold these modules cannot be left just like that.

bachus_anonym
02-11-2005, 12:15 PM
PC3200 BH-5 memory sticks HAVE to be stable @ DDR400 6-2-2-2.0-1T !!!
Give them, say, 2.8v and if they still error out at above settings, then it's not BH-5.

Also, by looking at SPD info in Everest - I would doubt that it's BH-5. Unless it's some very old BH-5 from times when DDR400 was not approved by JEDEC yet. I have a set of KHX PC3500 that doesn't show 6-2-2-2.0 in SPD but at least it runs at those timmings - and it runs very high frequencies.

SO I would say, pay that guy a visit ;)

RocKer
02-11-2005, 01:11 PM
I dont think its bh5.

XMSpc3500c2rev1.1 like the one's that i have are bh5.

You have CMX256A-3500C2PT,XMS3502v1.1 024436,do you see it,the are different.

I had a link with a list of ram with winbond bh5 chip on,but it dos'nt work enymore,maybe somebody else knows one.

funkflix
02-11-2005, 01:56 PM
It should be BH5!

Here are some Pics from different Corsair PC3500C2 BH5 :

http://www.forumdeluxx.de/gallery/data/3167/6834CorsairPC3500_01.jpg

http://people.freenet.de/funkflix/ram1.jpg

http://people.freenet.de/funkflix/ram2.jpg

bachus_anonym
02-11-2005, 01:59 PM
another option is ( just speculating here, ok :D ) that this guy just replaced original heatspreaders with the ones that real BH-5 Corsair XMS3502v1.1 3500C2PT has in place... those timmings in SPD just don't seem right for BH-5...

just my :2cents:

funkflix
02-11-2005, 02:02 PM
another option is ( just speculating here, ok :D ) that this guy just replaced original heatspreaders with the ones that real BH-5 Corsair XMS3502v1.1 3500C2PT has in place... those timmings in SPD just don't seem right for BH-5...

just my :2cents:

Thats the same i thought! ;)

Edit: But the SPD of the one stick shows the correct name.

TEDY
02-11-2005, 02:02 PM
ALSO TRY using new cpu-z 1.26

felinusz
02-11-2005, 02:02 PM
CMX256A-3500C2PT,XMS3502v1.1

I have the exact same RAM, silver heatspreaders.

All Corsair XMS/CMX PC3500 V1.1 is BH-5 memory, the 'V1.1' part being key here.

My sticks are definitely BH-5, I took the heatspreaders off... :)


My advice to you; take off those heatspreaders and find out for sure.

thelostrican
02-11-2005, 06:01 PM
as per the ramguy at corsair support all Corsair XMS/CMX PC3500 were bh5...
i asked about the version ex. 1.1 and he said that was due to the timings that were use for the spd programming, if its true or not i dunno....

i tookout my heatspreaders, and they bh5

seems weird that the second stick doesnt show anything....

mine perform like crap at anything below 3.0 v from that point on, they are dangerous :cool:

Gauss
02-11-2005, 07:08 PM
It should be BH5!

Here are some Pics from different Corsair PC3500C2 BH5 :



Well, thanks for the pics. Of course, I already know that the heatspreaders are from some memory that had BH-5. The point here is to tell if the memory are BH-5 without removing the heatspreaders, let's say, by looking at the timmings everest display or the information cpu-z provides with authentic Corsair with BH-5 memory.

Please, do someone with similar sticks can post screenshots?

I attached a screenshot using cpu-z 1.27, the first module is detected as pc3200 while the second don't, also check the timmings from each one, they are different. What I'm going to try is to test the first module alone to see if it alone reach good performance. The second module can't be used alone, as I said the system won't boot.

funkflix
02-12-2005, 05:28 AM
Something is wrong with the one stick! I think it is not an original Corsair PC3500C2!

http://www.weber-steuerungstechnik.de/felix/cpuzbh5.jpg

Sorry, opened for the second screen the old cpuz... but anyway it's not different!

The second stick won't boot bcs. it have no PC3200 SPD just PC2700.. and PC2700 won't work with Neo2 afaik!

naelq
02-12-2005, 05:47 AM
AFAIK, ALL PC3500 Corsairs are BH-5's ;)
do them some burning-in, with some nice voltages & they will shine, especially being the single-sided 256MB. :up:

Mag Master 21
02-12-2005, 10:09 AM
Umm.. I have 3500c2 bh-5 and it will do any timings (as tight as possible) with less than 3v and 200fsb.. I'd say the only way to really know is by taking the heat spreaders off.. And besides, you'll increase performance by letter them breathe anyway..

EMU
02-12-2005, 02:49 PM
Attached is my screenshot of CPU-Z with my 3500 BH5. Yours looks very fishy... I have not seen BH5 with those SPD settings before, and I have had at least 10 sets of different BH5 (mostly Corsair and Mushkin).

dippyskoodlez
02-12-2005, 03:19 PM
Hmm... wow.. the spd's are diff... o.O

I'd take the heatspreaders off. That'll solve all problems.

enzoR
02-12-2005, 04:26 PM
all corsair 3500 are bh5

EMU
02-12-2005, 04:32 PM
all corsair 3500 are bh5
Yes, I agree. But it is possible that his were relabeled and flashed :confused:

jjcom
02-12-2005, 10:22 PM
yeah, those aren't right. The second stick there is no way thats right. The timings are different and it doesn't even have all the info it should

jjcom

WaltS_2
02-13-2005, 09:30 AM
Just wanted to add that I have the same ram. I think that it is just for compatibility reasons. I bought these off ebay but I took off a heatspreader and they are bh-5.

TEDY
02-13-2005, 11:07 AM
walts 2 welcome here :)

jjcom
02-13-2005, 12:04 PM
Yep, Welcome to XS. :D

jjcom

Skratch
02-13-2005, 08:35 PM
Those are bh5,Mine say the same timings as yours and run 230 2225 at stock volts.

There the first batches before they had the right timings programed.

Just take the spreader of to make sure.

charlie
02-13-2005, 09:28 PM
yeah, unless teh spreaders are non-original, they ARE BH-5!

saaya
02-13-2005, 11:31 PM
if they clock bad then its bad bh5... you can try to rma them and hope for tccd memory though wich would be a good replacement imo... some do 250mhz 2-2-2 as well wich is what average bh5 would have done.