I have recently acquired a pair of 1GB Kingston DDR2-800, found to be ProMOS DDR2 2.5ns chips. We'll see how these cheapo chips fare in overclocking.

The rams... (I'll be testing only a pair)


Close up on the chips...


Although it's a bit hard to identify, by looking at the chips physically... the dimension is not very square There's a tiny brown dot on the bottom left corner, and the chip serial number starting with "S"...can't be a mistake with that serial numbering scheme. For those who do not know, ProMOS, albeit less popular with the overclockers, its chip has been used by some RAM manufacturers in high performance memory modules such as:

- Adata Vitesta PC2-6400 Extreme Edition 4-4-4-12@2.0V
- Adata Vitesta PC2-6400 Extreme Edition (EPP) 4-4-4-12@2.0V
- Corsair PC2-6400 Rev.2.1 4-4-4-12@2.1V
- Corsair PC2-6400C4D DOMINATOR Rev 2.1 & 2.2 4-4-4-12@2.1V
- Corsair PC2-6400C4PRO Rev 2.1 & 2.2
- G.Skill PC2-6400 PK 4-4-4-12@1.9~2.0V
- G.Skill PC2-6400 HK 4-4-3-5@2.0~2.1V
- Kingston PC2-8500 HyperX SLI-Ready
- Mushkin PC2-6400 HP2 4-5-4-11@2.1~2.2V
- OCZ PC2-6400 EL Platinum Rev 2.0 4-4-4-15@1.9~2.1V
- OCZ PC2-6400 Special Ops Edition Urban Elite 4-4-3-15@1.9~2.1V
- OCZ PC2-6400 FlexXLC CAS 4 4-4-4-15@2.0V
- OCZ PC2-6400 Reaper HPC Edition (2x1GB) 4-4-4-15@2.1V
- SuperTalent PC2-6400 4-4-3-8@2.2V
- Team Elite-series
- Team Xtreem Dark-series
- Team PC2-6400 Value RAM
- Transcend PC2-6400 JetRam/aXeRam

OK.... back to these cheap Kingston Value RAM...

Poorman's testing combo:
- AMD Athlon64 3200+
- Abit NF-M2 nView
- Coolermaster HyperTX
- Enermax FMA 460W

No ram cooling because no budget (poor mah!).

Too lazy to test with default voltage, so I straight go with 1.9V. No further tweaking done to the other memory timing settings.

1.9V: DDR2-950 CL5-5-5-15-2T


2.0V: DDR2-986 CL5-5-5-15-2T


2.1V: DDR2-1014 CL5-5-5-15-2T


2.2V: DDR2-1028 CL5-5-5-15-2T



...more testing coming

This post has been edited by soulfly: Jan 8 2008, 04:17 PM

front and the back is the same i suppose

I don't have Hynix in my hand so no comment.

Just now I tried to push further but windows corrupted lol

promos is just chips... kingston can use whatever pcd they want.... 6-layer, 4 layer, 1 layer also can.

I've checked the PCB, it's just normal Kingston PCB. There's no way Kingston would bother using 6-layer Brainpower PCB on their value ram.

I'm letting go this testing set, guarantee DDR2-1000 at rm160.

These RAM stocks in my hand already sold out. Probably gonna ask my supplier whether if he still got some more of these. Looks promising. I think my overclocking was a bit limited due to built-in VGA I think... because the screen came out artifacts when I tweak the timing lol!

This post has been edited by soulfly: Jan 16 2008, 10:55 PM