diff --git a/website/database/seeders/ConfigOptionSeeder.php b/website/database/seeders/ConfigOptionSeeder.php
index cea8af1..d31a774 100644
--- a/website/database/seeders/ConfigOptionSeeder.php
+++ b/website/database/seeders/ConfigOptionSeeder.php
@@ -355,6 +355,8 @@ class ConfigOptionSeeder extends Seeder
             ],
         );
 
+        // Platinum 8280 sits in this group but is filtered out at the route
+        // level for chassis where features.cpu_premium === false (R440/R540).
         $gen14CpuOption = $this->seedRadioOption($gen14CpuUpgrade, 'CPU Upgrade', false, 1);
         $this->seedValues($gen14CpuOption, [
             ['label' => 'Baseline: 2× Xeon Gold 6230 (40C / 2.10 GHz)', 'value' => 'gold-6230-baseline', 'monthly' => 0, 'is_default' => true],
@@ -367,9 +369,10 @@ class ConfigOptionSeeder extends Seeder
             ['label' => 'Mid-tier: 2× Xeon Gold 6230R (52C / 2.10 GHz)', 'value' => 'gold-6230r', 'monthly' => 50.00],
             ['label' => 'Upgrade: 2× Xeon Gold 6248R (48C / 3.00 GHz)', 'value' => 'gold-6248r', 'monthly' => 75.00],
             ['label' => 'Upgrade: 2× Xeon Gold 6258R (56C / 2.70 GHz)', 'value' => 'gold-6258r', 'monthly' => 145.00],
+            ['label' => 'Premium: 2× Xeon Platinum 8280 (56C / 2.70 GHz)', 'value' => 'platinum-8280', 'monthly' => 285.00],
         ]);
 
-        $gen14CpuPlanSlugs = ['r440-4lff', 'r540-8lff', 'r640-8sff', 'r740-16sff'];
+        $gen14CpuPlanSlugs = ['r440-4lff', 'r540-8lff', 'r640-8sff', 'r740-16sff', 'r740xd-24sff', 'r740xd-12lff', 'r640-10nvme', 'r740xd-24nvme'];
         $gen14CpuPlans = Plan::query()->whereIn('slug', $gen14CpuPlanSlugs)->pluck('id');
         $gen14CpuUpgrade->plans()->syncWithoutDetaching($gen14CpuPlans);
 
@@ -393,9 +396,11 @@ class ConfigOptionSeeder extends Seeder
             ['label' => 'Upgrade: 2× Xeon Platinum 8280 (56C / 2.70 GHz)', 'value' => 'platinum-8280', 'monthly' => 285.00],
         ]);
 
-        $gen14CpuXdPlanSlugs = ['r740xd-24sff', 'r740xd-12lff', 'r740xd-24nvme'];
-        $gen14CpuXdPlans = Plan::query()->whereIn('slug', $gen14CpuXdPlanSlugs)->pluck('id');
-        $gen14CpuUpgradeXd->plans()->syncWithoutDetaching($gen14CpuXdPlans);
+        // R740xd-specific group is now obsolete — all chassis use the
+        // standard CPU group above and the route-level cpu_premium filter
+        // controls Platinum visibility. Detach all plans; group + values
+        // remain seeded for backwards-compat with any historical references.
+        $gen14CpuUpgradeXd->plans()->sync([]);
 
         // ─── Dedicated 14th Gen — RAM Upgrade ───────────────────────────
         $gen14Ram = PlanConfigGroup::updateOrCreate(
@@ -411,13 +416,18 @@ class ConfigOptionSeeder extends Seeder
 
         $gen14RamOption = $this->seedRadioOption($gen14Ram, 'RAM Upgrade', false, 1);
         $this->seedValues($gen14RamOption, [
+            // Per-stick math at $65/64GB-equivalent, set to recoup 12-month
+            // hardware cost on $390/stick DDR4-2400 LRDIMM at 2026 Q2
+            // shortage prices + ~30% margin. Sits ~17% under Hetzner's
+            // $78/module pricing — small-provider positioning.
             ['label' => '32 GB DDR4-2400 ECC RDIMM (baseline)', 'value' => '32', 'monthly' => 0, 'is_default' => true],
-            ['label' => '64 GB DDR4-2400 ECC RDIMM', 'value' => '64', 'monthly' => 35.00],
-            ['label' => '128 GB DDR4-2400 ECC RDIMM', 'value' => '128', 'monthly' => 90.00],
-            ['label' => '256 GB DDR4-2400 ECC LRDIMM', 'value' => '256', 'monthly' => 195.00],
-            ['label' => '512 GB DDR4-2400 ECC LRDIMM', 'value' => '512', 'monthly' => 380.00],
-            ['label' => '1 TB DDR4-2400 ECC LRDIMM', 'value' => '1024', 'monthly' => 580.00],
-            ['label' => '1.5 TB DDR4-2400 ECC LRDIMM (R640/R740/R740xd only)', 'value' => '1536', 'monthly' => 780.00],
+            ['label' => '64 GB DDR4-2400 ECC RDIMM', 'value' => '64', 'monthly' => 65.00],
+            ['label' => '128 GB DDR4-2400 ECC RDIMM', 'value' => '128', 'monthly' => 195.00],
+            ['label' => '256 GB DDR4-2400 ECC LRDIMM', 'value' => '256', 'monthly' => 260.00],
+            ['label' => '512 GB DDR4-2400 ECC LRDIMM', 'value' => '512', 'monthly' => 520.00],
+            ['label' => '1 TB DDR4-2400 ECC LRDIMM', 'value' => '1024', 'monthly' => 1040.00],
+            // 1.5 TB hides for chassis with features.max_ram_gb < 1536.
+            ['label' => '1.5 TB DDR4-2400 ECC LRDIMM', 'value' => '1536', 'monthly' => 1560.00],
         ]);
 
         $gen14AllPlanSlugs = ['r440-4lff', 'r540-8lff', 'r640-8sff', 'r740-16sff', 'r740xd-24sff', 'r740xd-12lff', 'r640-10nvme', 'r740xd-24nvme'];